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Human Digestion and Absorption- 100 Multiple-Choice Questions for Liberty University

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Human Digestion and Absorption: 100 Multiple-Choice Questions
for Liberty University
1. Which of the following is NOT a part of the digestive system?
a) Esophagus
b) Stomach
c) Spleen
d) Small intestine
Answer: c) Spleen
2. The process of breaking down food into smaller, absorbable molecules is called:
a) Absorption
b) Digestion
c) Assimilation
d) Excretion
Answer: b) Digestion
3. Which enzyme is responsible for breaking down carbohydrates in the mouth?
a) Pepsin
b) Amylase
c) Lipase
d) Trypsin
Answer: b) Amylase
4. The acidic environment of the stomach is primarily due to:
a) Hydrochloric acid
b) Sulfuric acid
c) Nitric acid
d) Acetic acid
Answer: a) Hydrochloric acid
5. Which organ produces bile?
a) Pancreas
b) Gallbladder
c) Liver
d) Stomach
Answer: c) Liver
6. The majority of nutrient absorption occurs in the:
a) Stomach
b) Large intestine
c) Small intestine
d) Esophagus
Answer: c) Small intestine
7. Peristalsis refers to:
a) The production of digestive enzymes
b) The absorption of nutrients
c) The muscular contractions that move food through the digestive tract
d) The secretion of bile
Answer: c) The muscular contractions that move food through the digestive tract
8. Which of the following is NOT a function of the large intestine?
a) Water absorption
b) Electrolyte absorption
c) Protein digestion
d) Formation of feces
Answer: c) Protein digestion
9. The stomach secretes which of the following enzymes?
a) Trypsin
b) Lipase
c) Pepsin
d) Amylase
Answer: c) Pepsin
10. Which structure connects the mouth to the stomach?
a) Trachea
b) Esophagus
c) Duodenum
d) Jejunum
Answer: b) Esophagus
11. The pH of the stomach is typically:
a) 1-3
b) 4-6
c) 7-8
d) 9-10
Answer: a) 1-3
12. Which of the following is NOT produced by the pancreas?
a) Insulin
b) Trypsin
c) Pepsin
d) Lipase
Answer: c) Pepsin
13. The process of converting food into energy at the cellular level is called:
a) Digestion
b) Absorption
c) Metabolism
d) Excretion
Answer: c) Metabolism
14. Which nutrient is primarily digested in the mouth?
a) Proteins
b) Fats
c) Carbohydrates
d) Vitamins
Answer: c) Carbohydrates
15. The epiglottis functions to:
a) Produce saliva
b) Prevent food from entering the trachea
c) Break down proteins
d) Stimulate peristalsis
Answer: b) Prevent food from entering the trachea
16. Which of the following is NOT a part of the small intestine?
a) Duodenum
b) Jejunum
c) Ileum
d) Cecum
Answer: d) Cecum
17. Bile is stored in the:
a) Liver
b) Pancreas
c) Gallbladder
d) Spleen
Answer: c) Gallbladder
18. Which of the following best describes the function of villi in the small intestine?
a) Secretion of digestive enzymes
b) Storage of nutrients
c) Increase surface area for absorption
d) Production of bile
Answer: c) Increase surface area for absorption
19. The process of breaking down fats into smaller droplets is called:
a) Hydrolysis
b) Emulsification
c) Peristalsis
d) Absorption
Answer: b) Emulsification
20. Which of the following is responsible for the majority of water absorption in the digestive
system?
a) Stomach
b) Small intestine
c) Large intestine
d) Esophagus
Answer: c) Large intestine
21. The sphincter that controls the release of food from the stomach into the small intestine is
called:
a) Cardiac sphincter
b) Pyloric sphincter
c) Ileocecal valve
d) Anal sphincter
Answer: b) Pyloric sphincter
22. Which of the following is NOT a function of saliva?
a) Lubrication of food
b) Initial digestion of carbohydrates
c) Antibacterial action
d) Protein digestion
Answer: d) Protein digestion
23. The process of absorbing nutrients into the bloodstream is called:
a) Digestion
b) Assimilation
c) Absorption
d) Excretion
Answer: c) Absorption
24. Which of the following enzymes is responsible for breaking down fats?
a) Amylase
b) Pepsin
c) Lipase
d) Trypsin
Answer: c) Lipase
25. The appendix is attached to which part of the digestive system?
a) Small intestine
b) Stomach
c) Large intestine
d) Esophagus
Answer: c) Large intestine
26. Which of the following is NOT a function of the liver in digestion?
a) Production of bile
b) Storage of vitamins
c) Detoxification
d) Secretion of pepsin
Answer: d) Secretion of pepsin
27. The process of mixing food with stomach acid and enzymes is called:
a) Peristalsis
b) Churning
c) Absorption
d) Emulsification
Answer: b) Churning
28. Which of the following nutrients does NOT require enzymatic breakdown for absorption?
a) Proteins
b) Carbohydrates
c) Fats
d) Water
Answer: d) Water
29. The final product of protein digestion is:
a) Fatty acids
b) Glucose
c) Amino acids
d) Nucleotides
Answer: c) Amino acids
30. Which of the following is NOT a function of the pancreas in digestion?
a) Production of insulin
b) Secretion of digestive enzymes
c) Neutralization of stomach acid
d) Storage of bile
Answer: d) Storage of bile
31. The process of breaking down large food molecules into smaller ones is called:
a) Absorption
b) Assimilation
c) Hydrolysis
d) Emulsification
Answer: c) Hydrolysis
32. Which of the following best describes the function of microvilli?
a) Increase surface area for absorption
b) Produce digestive enzymes
c) Store nutrients
d) Facilitate peristalsis
Answer: a) Increase surface area for absorption
33. The hormone that stimulates the release of pancreatic enzymes is:
a) Insulin
b) Glucagon
c) Secretin
d) Gastrin
Answer: c) Secretin
34. Which of the following is NOT a component of bile?
a) Bile salts
b) Cholesterol
c) Bilirubin
d) Pepsin
Answer: d) Pepsin
35. The final products of carbohydrate digestion are:
a) Amino acids
b) Fatty acids
c) Monosaccharides
d) Nucleotides
Answer: c) Monosaccharides
36. Which of the following is responsible for the absorption of vitamin B12?
a) Duodenum
b) Jejunum
c) Ileum
d) Colon
Answer: c) Ileum
37. The process of moving digested nutrients from the intestinal lumen into the bloodstream is
called:
a) Peristalsis
b) Absorption
c) Assimilation
d) Excretion
Answer: b) Absorption
38. Which of the following is NOT a function of the large intestine?
a) Water absorption
b) Electrolyte absorption
c) Vitamin K production by bacteria
d) Protein digestion
Answer: d) Protein digestion
39. The hormone that stimulates the release of hydrochloric acid in the stomach is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Insulin
Answer: b) Gastrin
40. Which of the following best describes the function of rugae in the stomach?
a) Increase surface area
b) Produce stomach acid
c) Break down proteins
d) Absorb nutrients
Answer: a) Increase surface area
41. The process of converting excess glucose to glycogen for storage is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Glycogenolysis
Answer: c) Glycogenesis
42. Which of the following is NOT a function of the tongue in digestion?
a) Taste sensation
b) Mixing food with saliva
c) Initiating swallowing
d) Protein digestion
Answer: d) Protein digestion
43. The hormone that stimulates the release of bile from the gallbladder is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Insulin
Answer: c) Cholecystokinin
44. Which of the following is the correct order of the digestive system organs?
a) Mouth, esophagus, stomach, large intestine, small intestine
b) Mouth, esophagus, stomach, small intestine, large intestine
c) Mouth, stomach, esophagus, small intestine, large intestine
d) Mouth, esophagus, small intestine, stomach, large intestine
Answer: b) Mouth, esophagus, stomach, small intestine, large intestine
45. The primary site of iron absorption in the digestive system is the:
a) Stomach
b) Duodenum
c) Jejunum
d) Ileum
Answer: b) Duodenum
46. Which of the following enzymes is responsible for breaking down lactose?
a) Amylase
b) Lipase
c) Lactase
d) Pepsin
Answer: c) Lactase
47. The process of breaking down glycogen into glucose is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Glycogenolysis
Answer: d) Glycogenolysis
48. Which of the following is NOT a function of the liver in metabolism?
a) Protein synthesis
b) Glycogen storage
c) Bile production
d) Insulin secretion
Answer: d) Insulin secretion
49. The hormone that stimulates insulin secretion from the pancreas is:
a) Glucagon
b) Gastrin
c) Secretin
d) Glucose-dependent insulinotropic polypeptide (GIP)
Answer: d) Glucose-dependent insulinotropic polypeptide (GIP)
50. Which of the following best describes the function of goblet cells in the intestine?
a) Secrete mucus
b) Absorb nutrients
c) Produce hormones
d) Break down food particles
Answer: a) Secrete mucus
51. The process of forming new glucose molecules from non-carbohydrate sources is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Glycogenolysis
Answer: b) Gluconeogenesis
52. Which of the following is NOT a component of gastric juice?
a) Hydrochloric acid
b) Pepsin
c) Intrinsic factor
d) Bile
Answer: d) Bile
53. The majority of fat absorption occurs in the:
a) Stomach
b) Duodenum
c) Jejunum
d) Ileum
Answer: c) Jejunum
54. Which of the following best describes the function of the pancreas in digestion?
a) Storage of bile
b) Production of digestive enzymes
c) Absorption of nutrients
d) Secretion of hydrochloric acid
Answer: b) Production of digestive enzymes
55. The hormone that stimulates the breakdown of stored fat is:
a) Insulin
b) Glucagon
c) Gastrin
d) Secretin
Answer: b) Glucagon
56. Which of the following is NOT a function of the small intestine?
a) Nutrient absorption
b) Mixing of food with digestive enzymes
c) Secretion of bile
d) Continuation of chemical digestion
Answer: c) Secretion of bile
57. The process of breaking down glucose to produce energy is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Glycogenolysis
Answer: a) Glycolysis
58. Which of the following best describes the function of enterocytes?
a) Secrete mucus
b) Absorb nutrients
c) Produce hormones
d) Break down food particles
Answer: b) Absorb nutrients
59. The hormone that stimulates the production of hydrochloric acid in the stomach is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Pepsin
Answer: b) Gastrin
60. Which of the following is NOT a function of bile in digestion?
a) Emulsification of fats
b) Neutralization of stomach acid
c) Activation of lipase
d) Absorption of fat-soluble vitamins
Answer: c) Activation of lipase
61. The process of converting amino acids to glucose is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Transamination
Answer: b) Gluconeogenesis
62. Which of the following is responsible for the majority of protein digestion?
a) Mouth
b) Stomach
c) Small intestine
d) Large intestine
Answer: c) Small intestine
63. The hormone that stimulates the release of digestive enzymes from the pancreas is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Insulin
Answer: c) Cholecystokinin
64. Which of the following is NOT a function of the large intestine?
a) Water absorption
b) Electrolyte absorption
c) Formation of feces
d) Protein digestion
Answer: d) Protein digestion
65. The final products of fat digestion are:
a) Amino acids
b) Fatty acids and glycerol
c) Monosaccharides
d) Nucleotides
Answer: b) Fatty acids and glycerol
66. Which of the following is responsible for the absorption of most vitamins and minerals?
a) Stomach
b) Duodenum
c) Jejunum
d) Ileum
Answer: c) Jejunum
67. The process of moving food from the mouth to the stomach is called:
a) Peristalsis
b) Churning
c) Absorption
d) Emulsification
Answer: a) Peristalsis
68. Which of the following enzymes is responsible for breaking down peptides into amino acids?
a) Amylase
68. Which of the following enzymes is responsible for breaking down peptides into amino acids?
a) Amylase
b) Lipase
c) Peptidase
d) Nuclease
Answer: c) Peptidase
69. The hormone that stimulates the release of glucagon from the pancreas is:
a) Insulin
b) Gastrin
c) Secretin
d) Epinephrine
Answer: d) Epinephrine
70. Which of the following is NOT a function of the stomach?
a) Protein digestion
b) Mixing of food with gastric juices
c) Storage of food
d) Absorption of most nutrients
Answer: d) Absorption of most nutrients
71. The process of breaking down complex carbohydrates into simple sugars is called:
a) Proteolysis
b) Lipolysis
c) Glycolysis
d) Amylolysis
Answer: d) Amylolysis
72. Which of the following best describes the function of brush border enzymes?
a) Break down food particles
b) Secrete mucus
c) Complete the digestion of carbohydrates and proteins
d) Produce hormones
Answer: c) Complete the digestion of carbohydrates and proteins
73. The hormone that stimulates the production of bicarbonate-rich fluid from the pancreas is:
a) Gastrin
b) Secretin
c) Cholecystokinin
d) Insulin
Answer: b) Secretin
74. Which of the following is NOT absorbed in the small intestine?
a) Glucose
b) Amino acids
c) Fatty acids
d) Cellulose
Answer: d) Cellulose
75. The process of converting excess amino acids into fat or glucose is called:
a) Deamination
b) Transamination
c) Glycogenesis
d) Gluconeogenesis
Answer: a) Deamination
76. Which of the following is responsible for the production of intrinsic factor?
a) Liver
b) Pancreas
c) Stomach
d) Small intestine
Answer: c) Stomach
77. The enzyme responsible for breaking down triglycerides in the small intestine is:
a) Amylase
b) Pepsin
c) Lipase
d) Trypsin
Answer: c) Lipase
78. Which of the following is NOT a function of the liver in digestion and metabolism?
a) Synthesis of bile
b) Storage of vitamins
c) Production of digestive enzymes
d) Detoxification of harmful substances
Answer: c) Production of digestive enzymes
79. The process of reabsorbing bile acids in the small intestine is called:
a) Enterohepatic circulation
b) Peristalsis
c) Emulsification
d) Glycolysis
Answer: a) Enterohepatic circulation
80. Which of the following best describes the function of Peyer's patches in the small intestine?
a) Increase surface area for absorption
b) Produce digestive enzymes
c) Part of the immune system
d) Regulate peristalsis
Answer: c) Part of the immune system
81. The hormone that stimulates the breakdown of glycogen in the liver is:
a) Insulin
b) Glucagon
c) Gastrin
d) Secretin
Answer: b) Glucagon
82. Which of the following is NOT a function of the pancreas?
a) Production of digestive enzymes
b) Secretion of insulin
c) Neutralization of stomach acid
d) Storage of bile
Answer: d) Storage of bile
83. The process of converting glucose to lactic acid in the absence of oxygen is called:
a) Aerobic respiration
b) Anaerobic respiration
c) Gluconeogenesis
d) Glycogenesis
Answer: b) Anaerobic respiration
84. Which of the following best describes the function of chief cells in the stomach?
a) Produce hydrochloric acid
b) Secrete pepsinogen
c) Produce intrinsic factor
d) Secrete mucus
Answer: b) Secrete pepsinogen
85. The hormone that stimulates the contraction of the gallbladder is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Insulin
Answer: c) Cholecystokinin
86. Which of the following is NOT a function of the large intestine?
a) Water absorption
b) Electrolyte absorption
c) Production of vitamin K
d) Protein digestion
Answer: d) Protein digestion
87. The process of breaking down glycogen into glucose in the liver is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Glycogenolysis
Answer: d) Glycogenolysis
88. Which of the following enzymes is responsible for breaking down nucleic acids?
a) Amylase
b) Lipase
c) Nuclease
d) Peptidase
Answer: c) Nuclease
. Which of the following is NOT a function of the small intestine?
a) Nutrient absorption
b) Mixing of food with digestive enzymes
c) Secretion of bile
d) Continuation of chemical digestion
Answer: c) Secretion of bile
57. The process of breaking down glucose to produce energy is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Glycogenolysis
Answer: a) Glycolysis
58. Which of the following best describes the function of enterocytes?
a) Secrete mucus
b) Absorb nutrients
c) Produce hormones
d) Break down food particles
Answer: b) Absorb nutrients
59. The hormone that stimulates the production of hydrochloric acid in the stomach is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Pepsin
Answer: b) Gastrin
60. Which of the following is NOT a function of bile in digestion?
a) Emulsification of fats
b) Neutralization of stomach acid
c) Activation of lipase
d) Absorption of fat-soluble vitamins
Answer: c) Activation of lipase
61. The process of converting amino acids to glucose is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Transamination
Answer: b) Gluconeogenesis
62. Which of the following is responsible for the majority of protein digestion?
a) Mouth
b) Stomach
c) Small intestine
d) Large intestine
Answer: c) Small intestine
63. The hormone that stimulates the release of digestive enzymes from the pancreas is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Insulin
Answer: c) Cholecystokinin
64. Which of the following is NOT a function of the large intestine?
a) Water absorption
b) Electrolyte absorption
c) Formation of feces
d) Protein digestion
Answer: d) Protein digestion
65. The final products of fat digestion are:
a) Amino acids
b) Fatty acids and glycerol
c) Monosaccharides
d) Nucleotides
Answer: b) Fatty acids and glycerol
66. Which of the following is responsible for the absorption of most vitamins and minerals?
a) Stomach
b) Duodenum
c) Jejunum
d) Ileum
Answer: c) Jejunum
67. The process of moving food from the mouth to the stomach is called:
a) Peristalsis
b) Churning
c) Absorption
d) Emulsification
Answer: a) Peristalsis
68. Which of the following enzymes is responsible for breaking down peptides into amino acids?
a) Amylase
68. Which of the following enzymes is responsible for breaking down peptides into amino acids?
a) Amylase
b) Lipase
c) Peptidase
d) Nuclease
Answer: c) Peptidase
69. The hormone that stimulates the release of glucagon from the pancreas is:
a) Insulin
b) Gastrin
c) Secretin
d) Epinephrine
Answer: d) Epinephrine
70. Which of the following is NOT a function of the stomach?
a) Protein digestion
b) Mixing of food with gastric juices
c) Storage of food
d) Absorption of most nutrients
Answer: d) Absorption of most nutrients
71. The process of breaking down complex carbohydrates into simple sugars is called:
a) Proteolysis
b) Lipolysis
c) Glycolysis
d) Amylolysis
Answer: d) Amylolysis
72. Which of the following best describes the function of brush border enzymes?
a) Break down food particles
b) Secrete mucus
c) Complete the digestion of carbohydrates and proteins
d) Produce hormones
Answer: c) Complete the digestion of carbohydrates and proteins
73. The hormone that stimulates the production of bicarbonate-rich fluid from the pancreas is:
a) Gastrin
b) Secretin
c) Cholecystokinin
d) Insulin
Answer: b) Secretin
74. Which of the following is NOT absorbed in the small intestine?
a) Glucose
b) Amino acids
c) Fatty acids
d) Cellulose
Answer: d) Cellulose
75. The process of converting excess amino acids into fat or glucose is called:
a) Deamination
b) Transamination
c) Glycogenesis
d) Gluconeogenesis
Answer: a) Deamination
76. Which of the following is responsible for the production of intrinsic factor?
a) Liver
b) Pancreas
c) Stomach
d) Small intestine
Answer: c) Stomach
77. The enzyme responsible for breaking down triglycerides in the small intestine is:
a) Amylase
b) Pepsin
c) Lipase
d) Trypsin
Answer: c) Lipase
78. Which of the following is NOT a function of the liver in digestion and metabolism?
a) Synthesis of bile
b) Storage of vitamins
c) Production of digestive enzymes
d) Detoxification of harmful substances
Answer: c) Production of digestive enzymes
79. The process of reabsorbing bile acids in the small intestine is called:
a) Enterohepatic circulation
b) Peristalsis
c) Emulsification
d) Glycolysis
Answer: a) Enterohepatic circulation
80. Which of the following best describes the function of Peyer's patches in the small intestine?
a) Increase surface area for absorption
b) Produce digestive enzymes
c) Part of the immune system
d) Regulate peristalsis
Answer: c) Part of the immune system
81. The hormone that stimulates the breakdown of glycogen in the liver is:
a) Insulin
b) Glucagon
c) Gastrin
d) Secretin
Answer: b) Glucagon
82. Which of the following is NOT a function of the pancreas?
a) Production of digestive enzymes
b) Secretion of insulin
c) Neutralization of stomach acid
d) Storage of bile
Answer: d) Storage of bile
83. The process of converting glucose to lactic acid in the absence of oxygen is called:
a) Aerobic respiration
b) Anaerobic respiration
c) Gluconeogenesis
d) Glycogenesis
Answer: b) Anaerobic respiration
84. Which of the following best describes the function of chief cells in the stomach?
a) Produce hydrochloric acid
b) Secrete pepsinogen
c) Produce intrinsic factor
d) Secrete mucus
Answer: b) Secrete pepsinogen
85. The hormone that stimulates the contraction of the gallbladder is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Insulin
Answer: c) Cholecystokinin
86. Which of the following is NOT a function of the large intestine?
a) Water absorption
b) Electrolyte absorption
c) Production of vitamin K
d) Protein digestion
Answer: d) Protein digestion
87. The process of breaking down glycogen into glucose in the liver is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Glycogenolysis
Answer: d) Glycogenolysis
88. Which of the following enzymes is responsible for breaking down nucleic acids?
a) Amylase
b) Lipase
c) Nuclease
d) Peptidase
Answer: c) Nuclease
. Which of the following is NOT a function of the small intestine?
a) Nutrient absorption
b) Mixing of food with digestive enzymes
c) Secretion of bile
d) Continuation of chemical digestion
Answer: c) Secretion of bile
57. The process of breaking down glucose to produce energy is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Glycogenolysis
Answer: a) Glycolysis
58. Which of the following best describes the function of enterocytes?
a) Secrete mucus
b) Absorb nutrients
c) Produce hormones
d) Break down food particles
Answer: b) Absorb nutrients
59. The hormone that stimulates the production of hydrochloric acid in the stomach is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Pepsin
Answer: b) Gastrin
60. Which of the following is NOT a function of bile in digestion?
a) Emulsification of fats
b) Neutralization of stomach acid
c) Activation of lipase
d) Absorption of fat-soluble vitamins
Answer: c) Activation of lipase
61. The process of converting amino acids to glucose is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Transamination
Answer: b) Gluconeogenesis
62. Which of the following is responsible for the majority of protein digestion?
a) Mouth
b) Stomach
c) Small intestine
d) Large intestine
Answer: c) Small intestine
63. The hormone that stimulates the release of digestive enzymes from the pancreas is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Insulin
Answer: c) Cholecystokinin
64. Which of the following is NOT a function of the large intestine?
a) Water absorption
b) Electrolyte absorption
c) Formation of feces
d) Protein digestion
Answer: d) Protein digestion
65. The final products of fat digestion are:
a) Amino acids
b) Fatty acids and glycerol
c) Monosaccharides
d) Nucleotides
Answer: b) Fatty acids and glycerol
66. Which of the following is responsible for the absorption of most vitamins and minerals?
a) Stomach
b) Duodenum
c) Jejunum
d) Ileum
Answer: c) Jejunum
67. The process of moving food from the mouth to the stomach is called:
a) Peristalsis
b) Churning
c) Absorption
d) Emulsification
Answer: a) Peristalsis
68. Which of the following enzymes is responsible for breaking down peptides into amino acids?
a) Amylase
68. Which of the following enzymes is responsible for breaking down peptides into amino acids?
a) Amylase
b) Lipase
c) Peptidase
d) Nuclease
Answer: c) Peptidase
69. The hormone that stimulates the release of glucagon from the pancreas is:
a) Insulin
b) Gastrin
c) Secretin
d) Epinephrine
Answer: d) Epinephrine
70. Which of the following is NOT a function of the stomach?
a) Protein digestion
b) Mixing of food with gastric juices
c) Storage of food
d) Absorption of most nutrients
Answer: d) Absorption of most nutrients
71. The process of breaking down complex carbohydrates into simple sugars is called:
a) Proteolysis
b) Lipolysis
c) Glycolysis
d) Amylolysis
Answer: d) Amylolysis
72. Which of the following best describes the function of brush border enzymes?
a) Break down food particles
b) Secrete mucus
c) Complete the digestion of carbohydrates and proteins
d) Produce hormones
Answer: c) Complete the digestion of carbohydrates and proteins
73. The hormone that stimulates the production of bicarbonate-rich fluid from the pancreas is:
a) Gastrin
b) Secretin
c) Cholecystokinin
d) Insulin
Answer: b) Secretin
74. Which of the following is NOT absorbed in the small intestine?
a) Glucose
b) Amino acids
c) Fatty acids
d) Cellulose
Answer: d) Cellulose
75. The process of converting excess amino acids into fat or glucose is called:
a) Deamination
b) Transamination
c) Glycogenesis
d) Gluconeogenesis
Answer: a) Deamination
76. Which of the following is responsible for the production of intrinsic factor?
a) Liver
b) Pancreas
c) Stomach
d) Small intestine
Answer: c) Stomach
77. The enzyme responsible for breaking down triglycerides in the small intestine is:
a) Amylase
b) Pepsin
c) Lipase
d) Trypsin
Answer: c) Lipase
78. Which of the following is NOT a function of the liver in digestion and metabolism?
a) Synthesis of bile
b) Storage of vitamins
c) Production of digestive enzymes
d) Detoxification of harmful substances
Answer: c) Production of digestive enzymes
79. The process of reabsorbing bile acids in the small intestine is called:
a) Enterohepatic circulation
b) Peristalsis
c) Emulsification
d) Glycolysis
Answer: a) Enterohepatic circulation
80. Which of the following best describes the function of Peyer's patches in the small intestine?
a) Increase surface area for absorption
b) Produce digestive enzymes
c) Part of the immune system
d) Regulate peristalsis
Answer: c) Part of the immune system
81. The hormone that stimulates the breakdown of glycogen in the liver is:
a) Insulin
b) Glucagon
c) Gastrin
d) Secretin
Answer: b) Glucagon
82. Which of the following is NOT a function of the pancreas?
a) Production of digestive enzymes
b) Secretion of insulin
c) Neutralization of stomach acid
d) Storage of bile
Answer: d) Storage of bile
83. The process of converting glucose to lactic acid in the absence of oxygen is called:
a) Aerobic respiration
b) Anaerobic respiration
c) Gluconeogenesis
d) Glycogenesis
Answer: b) Anaerobic respiration
84. Which of the following best describes the function of chief cells in the stomach?
a) Produce hydrochloric acid
b) Secrete pepsinogen
c) Produce intrinsic factor
d) Secrete mucus
Answer: b) Secrete pepsinogen
85. The hormone that stimulates the contraction of the gallbladder is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Insulin
Answer: c) Cholecystokinin
86. Which of the following is NOT a function of the large intestine?
a) Water absorption
b) Electrolyte absorption
c) Production of vitamin K
d) Protein digestion
Answer: d) Protein digestion
87. The process of breaking down glycogen into glucose in the liver is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Glycogenolysis
Answer: d) Glycogenolysis
88. Which of the following enzymes is responsible for breaking down nucleic acids?
a) Amylase
b) Lipase
c) Nuclease
d) Peptidase
Answer: c) Nuclease
. Which of the following is NOT a function of the small intestine?
a) Nutrient absorption
b) Mixing of food with digestive enzymes
c) Secretion of bile
d) Continuation of chemical digestion
Answer: c) Secretion of bile
57. The process of breaking down glucose to produce energy is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Glycogenolysis
Answer: a) Glycolysis
58. Which of the following best describes the function of enterocytes?
a) Secrete mucus
b) Absorb nutrients
c) Produce hormones
d) Break down food particles
Answer: b) Absorb nutrients
59. The hormone that stimulates the production of hydrochloric acid in the stomach is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Pepsin
Answer: b) Gastrin
60. Which of the following is NOT a function of bile in digestion?
a) Emulsification of fats
b) Neutralization of stomach acid
c) Activation of lipase
d) Absorption of fat-soluble vitamins
Answer: c) Activation of lipase
61. The process of converting amino acids to glucose is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Transamination
Answer: b) Gluconeogenesis
62. Which of the following is responsible for the majority of protein digestion?
a) Mouth
b) Stomach
c) Small intestine
d) Large intestine
Answer: c) Small intestine
63. The hormone that stimulates the release of digestive enzymes from the pancreas is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Insulin
Answer: c) Cholecystokinin
64. Which of the following is NOT a function of the large intestine?
a) Water absorption
b) Electrolyte absorption
c) Formation of feces
d) Protein digestion
Answer: d) Protein digestion
65. The final products of fat digestion are:
a) Amino acids
b) Fatty acids and glycerol
c) Monosaccharides
d) Nucleotides
Answer: b) Fatty acids and glycerol
66. Which of the following is responsible for the absorption of most vitamins and minerals?
a) Stomach
b) Duodenum
c) Jejunum
d) Ileum
Answer: c) Jejunum
67. The process of moving food from the mouth to the stomach is called:
a) Peristalsis
b) Churning
c) Absorption
d) Emulsification
Answer: a) Peristalsis
68. Which of the following enzymes is responsible for breaking down peptides into amino acids?
a) Amylase
68. Which of the following enzymes is responsible for breaking down peptides into amino acids?
a) Amylase
b) Lipase
c) Peptidase
d) Nuclease
Answer: c) Peptidase
69. The hormone that stimulates the release of glucagon from the pancreas is:
a) Insulin
b) Gastrin
c) Secretin
d) Epinephrine
Answer: d) Epinephrine
70. Which of the following is NOT a function of the stomach?
a) Protein digestion
b) Mixing of food with gastric juices
c) Storage of food
d) Absorption of most nutrients
Answer: d) Absorption of most nutrients
71. The process of breaking down complex carbohydrates into simple sugars is called:
a) Proteolysis
b) Lipolysis
c) Glycolysis
d) Amylolysis
Answer: d) Amylolysis
72. Which of the following best describes the function of brush border enzymes?
a) Break down food particles
b) Secrete mucus
c) Complete the digestion of carbohydrates and proteins
d) Produce hormones
Answer: c) Complete the digestion of carbohydrates and proteins
73. The hormone that stimulates the production of bicarbonate-rich fluid from the pancreas is:
a) Gastrin
b) Secretin
c) Cholecystokinin
d) Insulin
Answer: b) Secretin
74. Which of the following is NOT absorbed in the small intestine?
a) Glucose
b) Amino acids
c) Fatty acids
d) Cellulose
Answer: d) Cellulose
75. The process of converting excess amino acids into fat or glucose is called:
a) Deamination
b) Transamination
c) Glycogenesis
d) Gluconeogenesis
Answer: a) Deamination
76. Which of the following is responsible for the production of intrinsic factor?
a) Liver
b) Pancreas
c) Stomach
d) Small intestine
Answer: c) Stomach
77. The enzyme responsible for breaking down triglycerides in the small intestine is:
a) Amylase
b) Pepsin
c) Lipase
d) Trypsin
Answer: c) Lipase
78. Which of the following is NOT a function of the liver in digestion and metabolism?
a) Synthesis of bile
b) Storage of vitamins
c) Production of digestive enzymes
d) Detoxification of harmful substances
Answer: c) Production of digestive enzymes
79. The process of reabsorbing bile acids in the small intestine is called:
a) Enterohepatic circulation
b) Peristalsis
c) Emulsification
d) Glycolysis
Answer: a) Enterohepatic circulation
80. Which of the following best describes the function of Peyer's patches in the small intestine?
a) Increase surface area for absorption
b) Produce digestive enzymes
c) Part of the immune system
d) Regulate peristalsis
Answer: c) Part of the immune system
81. The hormone that stimulates the breakdown of glycogen in the liver is:
a) Insulin
b) Glucagon
c) Gastrin
d) Secretin
Answer: b) Glucagon
82. Which of the following is NOT a function of the pancreas?
a) Production of digestive enzymes
b) Secretion of insulin
c) Neutralization of stomach acid
d) Storage of bile
Answer: d) Storage of bile
83. The process of converting glucose to lactic acid in the absence of oxygen is called:
a) Aerobic respiration
b) Anaerobic respiration
c) Gluconeogenesis
d) Glycogenesis
Answer: b) Anaerobic respiration
84. Which of the following best describes the function of chief cells in the stomach?
a) Produce hydrochloric acid
b) Secrete pepsinogen
c) Produce intrinsic factor
d) Secrete mucus
Answer: b) Secrete pepsinogen
85. The hormone that stimulates the contraction of the gallbladder is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Insulin
Answer: c) Cholecystokinin
86. Which of the following is NOT a function of the large intestine?
a) Water absorption
b) Electrolyte absorption
c) Production of vitamin K
d) Protein digestion
Answer: d) Protein digestion
87. The process of breaking down glycogen into glucose in the liver is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Glycogenolysis
Answer: d) Glycogenolysis
88. Which of the following enzymes is responsible for breaking down nucleic acids?
a) Amylase
b) Lipase
c) Nuclease
d) Peptidase
Answer: c) Nuclease
. Which of the following is NOT a function of the small intestine?
a) Nutrient absorption
b) Mixing of food with digestive enzymes
c) Secretion of bile
d) Continuation of chemical digestion
Answer: c) Secretion of bile
57. The process of breaking down glucose to produce energy is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Glycogenolysis
Answer: a) Glycolysis
58. Which of the following best describes the function of enterocytes?
a) Secrete mucus
b) Absorb nutrients
c) Produce hormones
d) Break down food particles
Answer: b) Absorb nutrients
59. The hormone that stimulates the production of hydrochloric acid in the stomach is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Pepsin
Answer: b) Gastrin
60. Which of the following is NOT a function of bile in digestion?
a) Emulsification of fats
b) Neutralization of stomach acid
c) Activation of lipase
d) Absorption of fat-soluble vitamins
Answer: c) Activation of lipase
61. The process of converting amino acids to glucose is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Transamination
Answer: b) Gluconeogenesis
62. Which of the following is responsible for the majority of protein digestion?
a) Mouth
b) Stomach
c) Small intestine
d) Large intestine
Answer: c) Small intestine
63. The hormone that stimulates the release of digestive enzymes from the pancreas is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Insulin
Answer: c) Cholecystokinin
64. Which of the following is NOT a function of the large intestine?
a) Water absorption
b) Electrolyte absorption
c) Formation of feces
d) Protein digestion
Answer: d) Protein digestion
65. The final products of fat digestion are:
a) Amino acids
b) Fatty acids and glycerol
c) Monosaccharides
d) Nucleotides
Answer: b) Fatty acids and glycerol
66. Which of the following is responsible for the absorption of most vitamins and minerals?
a) Stomach
b) Duodenum
c) Jejunum
d) Ileum
Answer: c) Jejunum
67. The process of moving food from the mouth to the stomach is called:
a) Peristalsis
b) Churning
c) Absorption
d) Emulsification
Answer: a) Peristalsis
68. Which of the following enzymes is responsible for breaking down peptides into amino acids?
a) Amylase
68. Which of the following enzymes is responsible for breaking down peptides into amino acids?
a) Amylase
b) Lipase
c) Peptidase
d) Nuclease
Answer: c) Peptidase
69. The hormone that stimulates the release of glucagon from the pancreas is:
a) Insulin
b) Gastrin
c) Secretin
d) Epinephrine
Answer: d) Epinephrine
70. Which of the following is NOT a function of the stomach?
a) Protein digestion
b) Mixing of food with gastric juices
c) Storage of food
d) Absorption of most nutrients
Answer: d) Absorption of most nutrients
71. The process of breaking down complex carbohydrates into simple sugars is called:
a) Proteolysis
b) Lipolysis
c) Glycolysis
d) Amylolysis
Answer: d) Amylolysis
72. Which of the following best describes the function of brush border enzymes?
a) Break down food particles
b) Secrete mucus
c) Complete the digestion of carbohydrates and proteins
d) Produce hormones
Answer: c) Complete the digestion of carbohydrates and proteins
73. The hormone that stimulates the production of bicarbonate-rich fluid from the pancreas is:
a) Gastrin
b) Secretin
c) Cholecystokinin
d) Insulin
Answer: b) Secretin
74. Which of the following is NOT absorbed in the small intestine?
a) Glucose
b) Amino acids
c) Fatty acids
d) Cellulose
Answer: d) Cellulose
75. The process of converting excess amino acids into fat or glucose is called:
a) Deamination
b) Transamination
c) Glycogenesis
d) Gluconeogenesis
Answer: a) Deamination
76. Which of the following is responsible for the production of intrinsic factor?
a) Liver
b) Pancreas
c) Stomach
d) Small intestine
Answer: c) Stomach
77. The enzyme responsible for breaking down triglycerides in the small intestine is:
a) Amylase
b) Pepsin
c) Lipase
d) Trypsin
Answer: c) Lipase
78. Which of the following is NOT a function of the liver in digestion and metabolism?
a) Synthesis of bile
b) Storage of vitamins
c) Production of digestive enzymes
d) Detoxification of harmful substances
Answer: c) Production of digestive enzymes
79. The process of reabsorbing bile acids in the small intestine is called:
a) Enterohepatic circulation
b) Peristalsis
c) Emulsification
d) Glycolysis
Answer: a) Enterohepatic circulation
80. Which of the following best describes the function of Peyer's patches in the small intestine?
a) Increase surface area for absorption
b) Produce digestive enzymes
c) Part of the immune system
d) Regulate peristalsis
Answer: c) Part of the immune system
81. The hormone that stimulates the breakdown of glycogen in the liver is:
a) Insulin
b) Glucagon
c) Gastrin
d) Secretin
Answer: b) Glucagon
82. Which of the following is NOT a function of the pancreas?
a) Production of digestive enzymes
b) Secretion of insulin
c) Neutralization of stomach acid
d) Storage of bile
Answer: d) Storage of bile
83. The process of converting glucose to lactic acid in the absence of oxygen is called:
a) Aerobic respiration
b) Anaerobic respiration
c) Gluconeogenesis
d) Glycogenesis
Answer: b) Anaerobic respiration
84. Which of the following best describes the function of chief cells in the stomach?
a) Produce hydrochloric acid
b) Secrete pepsinogen
c) Produce intrinsic factor
d) Secrete mucus
Answer: b) Secrete pepsinogen
85. The hormone that stimulates the contraction of the gallbladder is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Insulin
Answer: c) Cholecystokinin
86. Which of the following is NOT a function of the large intestine?
a) Water absorption
b) Electrolyte absorption
c) Production of vitamin K
d) Protein digestion
Answer: d) Protein digestion
87. The process of breaking down glycogen into glucose in the liver is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Glycogenolysis
Answer: d) Glycogenolysis
88. Which of the following enzymes is responsible for breaking down nucleic acids?
a) Amylase
b) Lipase
c) Nuclease
d) Peptidase
Answer: c) Nuclease
. Which of the following is NOT a function of the small intestine?
a) Nutrient absorption
b) Mixing of food with digestive enzymes
c) Secretion of bile
d) Continuation of chemical digestion
Answer: c) Secretion of bile
57. The process of breaking down glucose to produce energy is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Glycogenolysis
Answer: a) Glycolysis
58. Which of the following best describes the function of enterocytes?
a) Secrete mucus
b) Absorb nutrients
c) Produce hormones
d) Break down food particles
Answer: b) Absorb nutrients
59. The hormone that stimulates the production of hydrochloric acid in the stomach is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Pepsin
Answer: b) Gastrin
60. Which of the following is NOT a function of bile in digestion?
a) Emulsification of fats
b) Neutralization of stomach acid
c) Activation of lipase
d) Absorption of fat-soluble vitamins
Answer: c) Activation of lipase
61. The process of converting amino acids to glucose is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Transamination
Answer: b) Gluconeogenesis
62. Which of the following is responsible for the majority of protein digestion?
a) Mouth
b) Stomach
c) Small intestine
d) Large intestine
Answer: c) Small intestine
63. The hormone that stimulates the release of digestive enzymes from the pancreas is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Insulin
Answer: c) Cholecystokinin
64. Which of the following is NOT a function of the large intestine?
a) Water absorption
b) Electrolyte absorption
c) Formation of feces
d) Protein digestion
Answer: d) Protein digestion
65. The final products of fat digestion are:
a) Amino acids
b) Fatty acids and glycerol
c) Monosaccharides
d) Nucleotides
Answer: b) Fatty acids and glycerol
66. Which of the following is responsible for the absorption of most vitamins and minerals?
a) Stomach
b) Duodenum
c) Jejunum
d) Ileum
Answer: c) Jejunum
67. The process of moving food from the mouth to the stomach is called:
a) Peristalsis
b) Churning
c) Absorption
d) Emulsification
Answer: a) Peristalsis
68. Which of the following enzymes is responsible for breaking down peptides into amino acids?
a) Amylase
68. Which of the following enzymes is responsible for breaking down peptides into amino acids?
a) Amylase
b) Lipase
c) Peptidase
d) Nuclease
Answer: c) Peptidase
69. The hormone that stimulates the release of glucagon from the pancreas is:
a) Insulin
b) Gastrin
c) Secretin
d) Epinephrine
Answer: d) Epinephrine
70. Which of the following is NOT a function of the stomach?
a) Protein digestion
b) Mixing of food with gastric juices
c) Storage of food
d) Absorption of most nutrients
Answer: d) Absorption of most nutrients
71. The process of breaking down complex carbohydrates into simple sugars is called:
a) Proteolysis
b) Lipolysis
c) Glycolysis
d) Amylolysis
Answer: d) Amylolysis
72. Which of the following best describes the function of brush border enzymes?
a) Break down food particles
b) Secrete mucus
c) Complete the digestion of carbohydrates and proteins
d) Produce hormones
Answer: c) Complete the digestion of carbohydrates and proteins
73. The hormone that stimulates the production of bicarbonate-rich fluid from the pancreas is:
a) Gastrin
b) Secretin
c) Cholecystokinin
d) Insulin
Answer: b) Secretin
74. Which of the following is NOT absorbed in the small intestine?
a) Glucose
b) Amino acids
c) Fatty acids
d) Cellulose
Answer: d) Cellulose
75. The process of converting excess amino acids into fat or glucose is called:
a) Deamination
b) Transamination
c) Glycogenesis
d) Gluconeogenesis
Answer: a) Deamination
76. Which of the following is responsible for the production of intrinsic factor?
a) Liver
b) Pancreas
c) Stomach
d) Small intestine
Answer: c) Stomach
77. The enzyme responsible for breaking down triglycerides in the small intestine is:
a) Amylase
b) Pepsin
c) Lipase
d) Trypsin
Answer: c) Lipase
78. Which of the following is NOT a function of the liver in digestion and metabolism?
a) Synthesis of bile
b) Storage of vitamins
c) Production of digestive enzymes
d) Detoxification of harmful substances
Answer: c) Production of digestive enzymes
79. The process of reabsorbing bile acids in the small intestine is called:
a) Enterohepatic circulation
b) Peristalsis
c) Emulsification
d) Glycolysis
Answer: a) Enterohepatic circulation
80. Which of the following best describes the function of Peyer's patches in the small intestine?
a) Increase surface area for absorption
b) Produce digestive enzymes
c) Part of the immune system
d) Regulate peristalsis
Answer: c) Part of the immune system
81. The hormone that stimulates the breakdown of glycogen in the liver is:
a) Insulin
b) Glucagon
c) Gastrin
d) Secretin
Answer: b) Glucagon
82. Which of the following is NOT a function of the pancreas?
a) Production of digestive enzymes
b) Secretion of insulin
c) Neutralization of stomach acid
d) Storage of bile
Answer: d) Storage of bile
83. The process of converting glucose to lactic acid in the absence of oxygen is called:
a) Aerobic respiration
b) Anaerobic respiration
c) Gluconeogenesis
d) Glycogenesis
Answer: b) Anaerobic respiration
84. Which of the following best describes the function of chief cells in the stomach?
a) Produce hydrochloric acid
b) Secrete pepsinogen
c) Produce intrinsic factor
d) Secrete mucus
Answer: b) Secrete pepsinogen
85. The hormone that stimulates the contraction of the gallbladder is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Insulin
Answer: c) Cholecystokinin
86. Which of the following is NOT a function of the large intestine?
a) Water absorption
b) Electrolyte absorption
c) Production of vitamin K
d) Protein digestion
Answer: d) Protein digestion
87. The process of breaking down glycogen into glucose in the liver is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Glycogenolysis
Answer: d) Glycogenolysis
88. Which of the following enzymes is responsible for breaking down nucleic acids?
a) Amylase
b) Lipase
c) Nuclease
d) Peptidase
Answer: c) Nuclease
. Which of the following is NOT a function of the small intestine?
a) Nutrient absorption
b) Mixing of food with digestive enzymes
c) Secretion of bile
d) Continuation of chemical digestion
Answer: c) Secretion of bile
57. The process of breaking down glucose to produce energy is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Glycogenolysis
Answer: a) Glycolysis
58. Which of the following best describes the function of enterocytes?
a) Secrete mucus
b) Absorb nutrients
c) Produce hormones
d) Break down food particles
Answer: b) Absorb nutrients
59. The hormone that stimulates the production of hydrochloric acid in the stomach is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Pepsin
Answer: b) Gastrin
60. Which of the following is NOT a function of bile in digestion?
a) Emulsification of fats
b) Neutralization of stomach acid
c) Activation of lipase
d) Absorption of fat-soluble vitamins
Answer: c) Activation of lipase
61. The process of converting amino acids to glucose is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Transamination
Answer: b) Gluconeogenesis
62. Which of the following is responsible for the majority of protein digestion?
a) Mouth
b) Stomach
c) Small intestine
d) Large intestine
Answer: c) Small intestine
63. The hormone that stimulates the release of digestive enzymes from the pancreas is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Insulin
Answer: c) Cholecystokinin
64. Which of the following is NOT a function of the large intestine?
a) Water absorption
b) Electrolyte absorption
c) Formation of feces
d) Protein digestion
Answer: d) Protein digestion
65. The final products of fat digestion are:
a) Amino acids
b) Fatty acids and glycerol
c) Monosaccharides
d) Nucleotides
Answer: b) Fatty acids and glycerol
66. Which of the following is responsible for the absorption of most vitamins and minerals?
a) Stomach
b) Duodenum
c) Jejunum
d) Ileum
Answer: c) Jejunum
67. The process of moving food from the mouth to the stomach is called:
a) Peristalsis
b) Churning
c) Absorption
d) Emulsification
Answer: a) Peristalsis
68. Which of the following enzymes is responsible for breaking down peptides into amino acids?
a) Amylase
68. Which of the following enzymes is responsible for breaking down peptides into amino acids?
a) Amylase
b) Lipase
c) Peptidase
d) Nuclease
Answer: c) Peptidase
69. The hormone that stimulates the release of glucagon from the pancreas is:
a) Insulin
b) Gastrin
c) Secretin
d) Epinephrine
Answer: d) Epinephrine
70. Which of the following is NOT a function of the stomach?
a) Protein digestion
b) Mixing of food with gastric juices
c) Storage of food
d) Absorption of most nutrients
Answer: d) Absorption of most nutrients
71. The process of breaking down complex carbohydrates into simple sugars is called:
a) Proteolysis
b) Lipolysis
c) Glycolysis
d) Amylolysis
Answer: d) Amylolysis
72. Which of the following best describes the function of brush border enzymes?
a) Break down food particles
b) Secrete mucus
c) Complete the digestion of carbohydrates and proteins
d) Produce hormones
Answer: c) Complete the digestion of carbohydrates and proteins
73. The hormone that stimulates the production of bicarbonate-rich fluid from the pancreas is:
a) Gastrin
b) Secretin
c) Cholecystokinin
d) Insulin
Answer: b) Secretin
74. Which of the following is NOT absorbed in the small intestine?
a) Glucose
b) Amino acids
c) Fatty acids
d) Cellulose
Answer: d) Cellulose
75. The process of converting excess amino acids into fat or glucose is called:
a) Deamination
b) Transamination
c) Glycogenesis
d) Gluconeogenesis
Answer: a) Deamination
76. Which of the following is responsible for the production of intrinsic factor?
a) Liver
b) Pancreas
c) Stomach
d) Small intestine
Answer: c) Stomach
77. The enzyme responsible for breaking down triglycerides in the small intestine is:
a) Amylase
b) Pepsin
c) Lipase
d) Trypsin
Answer: c) Lipase
78. Which of the following is NOT a function of the liver in digestion and metabolism?
a) Synthesis of bile
b) Storage of vitamins
c) Production of digestive enzymes
d) Detoxification of harmful substances
Answer: c) Production of digestive enzymes
79. The process of reabsorbing bile acids in the small intestine is called:
a) Enterohepatic circulation
b) Peristalsis
c) Emulsification
d) Glycolysis
Answer: a) Enterohepatic circulation
80. Which of the following best describes the function of Peyer's patches in the small intestine?
a) Increase surface area for absorption
b) Produce digestive enzymes
c) Part of the immune system
d) Regulate peristalsis
Answer: c) Part of the immune system
81. The hormone that stimulates the breakdown of glycogen in the liver is:
a) Insulin
b) Glucagon
c) Gastrin
d) Secretin
Answer: b) Glucagon
82. Which of the following is NOT a function of the pancreas?
a) Production of digestive enzymes
b) Secretion of insulin
c) Neutralization of stomach acid
d) Storage of bile
Answer: d) Storage of bile
83. The process of converting glucose to lactic acid in the absence of oxygen is called:
a) Aerobic respiration
b) Anaerobic respiration
c) Gluconeogenesis
d) Glycogenesis
Answer: b) Anaerobic respiration
84. Which of the following best describes the function of chief cells in the stomach?
a) Produce hydrochloric acid
b) Secrete pepsinogen
c) Produce intrinsic factor
d) Secrete mucus
Answer: b) Secrete pepsinogen
85. The hormone that stimulates the contraction of the gallbladder is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Insulin
Answer: c) Cholecystokinin
86. Which of the following is NOT a function of the large intestine?
a) Water absorption
b) Electrolyte absorption
c) Production of vitamin K
d) Protein digestion
Answer: d) Protein digestion
87. The process of breaking down glycogen into glucose in the liver is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Glycogenolysis
Answer: d) Glycogenolysis
88. Which of the following enzymes is responsible for breaking down nucleic acids?
a) Amylase
b) Lipase
c) Nuclease
d) Peptidase
Answer: c) Nuclease
. Which of the following is NOT a function of the small intestine?
a) Nutrient absorption
b) Mixing of food with digestive enzymes
c) Secretion of bile
d) Continuation of chemical digestion
Answer: c) Secretion of bile
57. The process of breaking down glucose to produce energy is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Glycogenolysis
Answer: a) Glycolysis
58. Which of the following best describes the function of enterocytes?
a) Secrete mucus
b) Absorb nutrients
c) Produce hormones
d) Break down food particles
Answer: b) Absorb nutrients
59. The hormone that stimulates the production of hydrochloric acid in the stomach is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Pepsin
Answer: b) Gastrin
60. Which of the following is NOT a function of bile in digestion?
a) Emulsification of fats
b) Neutralization of stomach acid
c) Activation of lipase
d) Absorption of fat-soluble vitamins
Answer: c) Activation of lipase
61. The process of converting amino acids to glucose is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Transamination
Answer: b) Gluconeogenesis
62. Which of the following is responsible for the majority of protein digestion?
a) Mouth
b) Stomach
c) Small intestine
d) Large intestine
Answer: c) Small intestine
63. The hormone that stimulates the release of digestive enzymes from the pancreas is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Insulin
Answer: c) Cholecystokinin
64. Which of the following is NOT a function of the large intestine?
a) Water absorption
b) Electrolyte absorption
c) Formation of feces
d) Protein digestion
Answer: d) Protein digestion
65. The final products of fat digestion are:
a) Amino acids
b) Fatty acids and glycerol
c) Monosaccharides
d) Nucleotides
Answer: b) Fatty acids and glycerol
66. Which of the following is responsible for the absorption of most vitamins and minerals?
a) Stomach
b) Duodenum
c) Jejunum
d) Ileum
Answer: c) Jejunum
67. The process of moving food from the mouth to the stomach is called:
a) Peristalsis
b) Churning
c) Absorption
d) Emulsification
Answer: a) Peristalsis
68. Which of the following enzymes is responsible for breaking down peptides into amino acids?
a) Amylase
68. Which of the following enzymes is responsible for breaking down peptides into amino acids?
a) Amylase
b) Lipase
c) Peptidase
d) Nuclease
Answer: c) Peptidase
69. The hormone that stimulates the release of glucagon from the pancreas is:
a) Insulin
b) Gastrin
c) Secretin
d) Epinephrine
Answer: d) Epinephrine
70. Which of the following is NOT a function of the stomach?
a) Protein digestion
b) Mixing of food with gastric juices
c) Storage of food
d) Absorption of most nutrients
Answer: d) Absorption of most nutrients
71. The process of breaking down complex carbohydrates into simple sugars is called:
a) Proteolysis
b) Lipolysis
c) Glycolysis
d) Amylolysis
Answer: d) Amylolysis
72. Which of the following best describes the function of brush border enzymes?
a) Break down food particles
b) Secrete mucus
c) Complete the digestion of carbohydrates and proteins
d) Produce hormones
Answer: c) Complete the digestion of carbohydrates and proteins
73. The hormone that stimulates the production of bicarbonate-rich fluid from the pancreas is:
a) Gastrin
b) Secretin
c) Cholecystokinin
d) Insulin
Answer: b) Secretin
74. Which of the following is NOT absorbed in the small intestine?
a) Glucose
b) Amino acids
c) Fatty acids
d) Cellulose
Answer: d) Cellulose
75. The process of converting excess amino acids into fat or glucose is called:
a) Deamination
b) Transamination
c) Glycogenesis
d) Gluconeogenesis
Answer: a) Deamination
76. Which of the following is responsible for the production of intrinsic factor?
a) Liver
b) Pancreas
c) Stomach
d) Small intestine
Answer: c) Stomach
77. The enzyme responsible for breaking down triglycerides in the small intestine is:
a) Amylase
b) Pepsin
c) Lipase
d) Trypsin
Answer: c) Lipase
78. Which of the following is NOT a function of the liver in digestion and metabolism?
a) Synthesis of bile
b) Storage of vitamins
c) Production of digestive enzymes
d) Detoxification of harmful substances
Answer: c) Production of digestive enzymes
79. The process of reabsorbing bile acids in the small intestine is called:
a) Enterohepatic circulation
b) Peristalsis
c) Emulsification
d) Glycolysis
Answer: a) Enterohepatic circulation
80. Which of the following best describes the function of Peyer's patches in the small intestine?
a) Increase surface area for absorption
b) Produce digestive enzymes
c) Part of the immune system
d) Regulate peristalsis
Answer: c) Part of the immune system
81. The hormone that stimulates the breakdown of glycogen in the liver is:
a) Insulin
b) Glucagon
c) Gastrin
d) Secretin
Answer: b) Glucagon
82. Which of the following is NOT a function of the pancreas?
a) Production of digestive enzymes
b) Secretion of insulin
c) Neutralization of stomach acid
d) Storage of bile
Answer: d) Storage of bile
83. The process of converting glucose to lactic acid in the absence of oxygen is called:
a) Aerobic respiration
b) Anaerobic respiration
c) Gluconeogenesis
d) Glycogenesis
Answer: b) Anaerobic respiration
84. Which of the following best describes the function of chief cells in the stomach?
a) Produce hydrochloric acid
b) Secrete pepsinogen
c) Produce intrinsic factor
d) Secrete mucus
Answer: b) Secrete pepsinogen
85. The hormone that stimulates the contraction of the gallbladder is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Insulin
Answer: c) Cholecystokinin
86. Which of the following is NOT a function of the large intestine?
a) Water absorption
b) Electrolyte absorption
c) Production of vitamin K
d) Protein digestion
Answer: d) Protein digestion
87. The process of breaking down glycogen into glucose in the liver is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Glycogenolysis
Answer: d) Glycogenolysis
88. Which of the following enzymes is responsible for breaking down nucleic acids?
a) Amylase
b) Lipase
c) Nuclease
d) Peptidase
Answer: c) Nuclease
. Which of the following is NOT a function of the small intestine?
a) Nutrient absorption
b) Mixing of food with digestive enzymes
c) Secretion of bile
d) Continuation of chemical digestion
Answer: c) Secretion of bile
57. The process of breaking down glucose to produce energy is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Glycogenolysis
Answer: a) Glycolysis
58. Which of the following best describes the function of enterocytes?
a) Secrete mucus
b) Absorb nutrients
c) Produce hormones
d) Break down food particles
Answer: b) Absorb nutrients
59. The hormone that stimulates the production of hydrochloric acid in the stomach is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Pepsin
Answer: b) Gastrin
60. Which of the following is NOT a function of bile in digestion?
a) Emulsification of fats
b) Neutralization of stomach acid
c) Activation of lipase
d) Absorption of fat-soluble vitamins
Answer: c) Activation of lipase
61. The process of converting amino acids to glucose is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Transamination
Answer: b) Gluconeogenesis
62. Which of the following is responsible for the majority of protein digestion?
a) Mouth
b) Stomach
c) Small intestine
d) Large intestine
Answer: c) Small intestine
63. The hormone that stimulates the release of digestive enzymes from the pancreas is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Insulin
Answer: c) Cholecystokinin
64. Which of the following is NOT a function of the large intestine?
a) Water absorption
b) Electrolyte absorption
c) Formation of feces
d) Protein digestion
Answer: d) Protein digestion
65. The final products of fat digestion are:
a) Amino acids
b) Fatty acids and glycerol
c) Monosaccharides
d) Nucleotides
Answer: b) Fatty acids and glycerol
66. Which of the following is responsible for the absorption of most vitamins and minerals?
a) Stomach
b) Duodenum
c) Jejunum
d) Ileum
Answer: c) Jejunum
67. The process of moving food from the mouth to the stomach is called:
a) Peristalsis
b) Churning
c) Absorption
d) Emulsification
Answer: a) Peristalsis
68. Which of the following enzymes is responsible for breaking down peptides into amino acids?
a) Amylase
68. Which of the following enzymes is responsible for breaking down peptides into amino acids?
a) Amylase
b) Lipase
c) Peptidase
d) Nuclease
Answer: c) Peptidase
69. The hormone that stimulates the release of glucagon from the pancreas is:
a) Insulin
b) Gastrin
c) Secretin
d) Epinephrine
Answer: d) Epinephrine
70. Which of the following is NOT a function of the stomach?
a) Protein digestion
b) Mixing of food with gastric juices
c) Storage of food
d) Absorption of most nutrients
Answer: d) Absorption of most nutrients
71. The process of breaking down complex carbohydrates into simple sugars is called:
a) Proteolysis
b) Lipolysis
c) Glycolysis
d) Amylolysis
Answer: d) Amylolysis
72. Which of the following best describes the function of brush border enzymes?
a) Break down food particles
b) Secrete mucus
c) Complete the digestion of carbohydrates and proteins
d) Produce hormones
Answer: c) Complete the digestion of carbohydrates and proteins
73. The hormone that stimulates the production of bicarbonate-rich fluid from the pancreas is:
a) Gastrin
b) Secretin
c) Cholecystokinin
d) Insulin
Answer: b) Secretin
74. Which of the following is NOT absorbed in the small intestine?
a) Glucose
b) Amino acids
c) Fatty acids
d) Cellulose
Answer: d) Cellulose
75. The process of converting excess amino acids into fat or glucose is called:
a) Deamination
b) Transamination
c) Glycogenesis
d) Gluconeogenesis
Answer: a) Deamination
76. Which of the following is responsible for the production of intrinsic factor?
a) Liver
b) Pancreas
c) Stomach
d) Small intestine
Answer: c) Stomach
77. The enzyme responsible for breaking down triglycerides in the small intestine is:
a) Amylase
b) Pepsin
c) Lipase
d) Trypsin
Answer: c) Lipase
78. Which of the following is NOT a function of the liver in digestion and metabolism?
a) Synthesis of bile
b) Storage of vitamins
c) Production of digestive enzymes
d) Detoxification of harmful substances
Answer: c) Production of digestive enzymes
79. The process of reabsorbing bile acids in the small intestine is called:
a) Enterohepatic circulation
b) Peristalsis
c) Emulsification
d) Glycolysis
Answer: a) Enterohepatic circulation
80. Which of the following best describes the function of Peyer's patches in the small intestine?
a) Increase surface area for absorption
b) Produce digestive enzymes
c) Part of the immune system
d) Regulate peristalsis
Answer: c) Part of the immune system
81. The hormone that stimulates the breakdown of glycogen in the liver is:
a) Insulin
b) Glucagon
c) Gastrin
d) Secretin
Answer: b) Glucagon
82. Which of the following is NOT a function of the pancreas?
a) Production of digestive enzymes
b) Secretion of insulin
c) Neutralization of stomach acid
d) Storage of bile
Answer: d) Storage of bile
83. The process of converting glucose to lactic acid in the absence of oxygen is called:
a) Aerobic respiration
b) Anaerobic respiration
c) Gluconeogenesis
d) Glycogenesis
Answer: b) Anaerobic respiration
84. Which of the following best describes the function of chief cells in the stomach?
a) Produce hydrochloric acid
b) Secrete pepsinogen
c) Produce intrinsic factor
d) Secrete mucus
Answer: b) Secrete pepsinogen
85. The hormone that stimulates the contraction of the gallbladder is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Insulin
Answer: c) Cholecystokinin
86. Which of the following is NOT a function of the large intestine?
a) Water absorption
b) Electrolyte absorption
c) Production of vitamin K
d) Protein digestion
Answer: d) Protein digestion
87. The process of breaking down glycogen into glucose in the liver is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Glycogenolysis
Answer: d) Glycogenolysis
88. Which of the following enzymes is responsible for breaking down nucleic acids?
a) Amylase
b) Lipase
c) Nuclease
d) Peptidase
Answer: c) Nuclease
. Which of the following is NOT a function of the small intestine?
a) Nutrient absorption
b) Mixing of food with digestive enzymes
c) Secretion of bile
d) Continuation of chemical digestion
Answer: c) Secretion of bile
57. The process of breaking down glucose to produce energy is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Glycogenolysis
Answer: a) Glycolysis
58. Which of the following best describes the function of enterocytes?
a) Secrete mucus
b) Absorb nutrients
c) Produce hormones
d) Break down food particles
Answer: b) Absorb nutrients
59. The hormone that stimulates the production of hydrochloric acid in the stomach is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Pepsin
Answer: b) Gastrin
60. Which of the following is NOT a function of bile in digestion?
a) Emulsification of fats
b) Neutralization of stomach acid
c) Activation of lipase
d) Absorption of fat-soluble vitamins
Answer: c) Activation of lipase
61. The process of converting amino acids to glucose is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Transamination
Answer: b) Gluconeogenesis
62. Which of the following is responsible for the majority of protein digestion?
a) Mouth
b) Stomach
c) Small intestine
d) Large intestine
Answer: c) Small intestine
63. The hormone that stimulates the release of digestive enzymes from the pancreas is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Insulin
Answer: c) Cholecystokinin
64. Which of the following is NOT a function of the large intestine?
a) Water absorption
b) Electrolyte absorption
c) Formation of feces
d) Protein digestion
Answer: d) Protein digestion
65. The final products of fat digestion are:
a) Amino acids
b) Fatty acids and glycerol
c) Monosaccharides
d) Nucleotides
Answer: b) Fatty acids and glycerol
66. Which of the following is responsible for the absorption of most vitamins and minerals?
a) Stomach
b) Duodenum
c) Jejunum
d) Ileum
Answer: c) Jejunum
67. The process of moving food from the mouth to the stomach is called:
a) Peristalsis
b) Churning
c) Absorption
d) Emulsification
Answer: a) Peristalsis
68. Which of the following enzymes is responsible for breaking down peptides into amino acids?
a) Amylase
68. Which of the following enzymes is responsible for breaking down peptides into amino acids?
a) Amylase
b) Lipase
c) Peptidase
d) Nuclease
Answer: c) Peptidase
69. The hormone that stimulates the release of glucagon from the pancreas is:
a) Insulin
b) Gastrin
c) Secretin
d) Epinephrine
Answer: d) Epinephrine
70. Which of the following is NOT a function of the stomach?
a) Protein digestion
b) Mixing of food with gastric juices
c) Storage of food
d) Absorption of most nutrients
Answer: d) Absorption of most nutrients
71. The process of breaking down complex carbohydrates into simple sugars is called:
a) Proteolysis
b) Lipolysis
c) Glycolysis
d) Amylolysis
Answer: d) Amylolysis
72. Which of the following best describes the function of brush border enzymes?
a) Break down food particles
b) Secrete mucus
c) Complete the digestion of carbohydrates and proteins
d) Produce hormones
Answer: c) Complete the digestion of carbohydrates and proteins
73. The hormone that stimulates the production of bicarbonate-rich fluid from the pancreas is:
a) Gastrin
b) Secretin
c) Cholecystokinin
d) Insulin
Answer: b) Secretin
74. Which of the following is NOT absorbed in the small intestine?
a) Glucose
b) Amino acids
c) Fatty acids
d) Cellulose
Answer: d) Cellulose
75. The process of converting excess amino acids into fat or glucose is called:
a) Deamination
b) Transamination
c) Glycogenesis
d) Gluconeogenesis
Answer: a) Deamination
76. Which of the following is responsible for the production of intrinsic factor?
a) Liver
b) Pancreas
c) Stomach
d) Small intestine
Answer: c) Stomach
77. The enzyme responsible for breaking down triglycerides in the small intestine is:
a) Amylase
b) Pepsin
c) Lipase
d) Trypsin
Answer: c) Lipase
78. Which of the following is NOT a function of the liver in digestion and metabolism?
a) Synthesis of bile
b) Storage of vitamins
c) Production of digestive enzymes
d) Detoxification of harmful substances
Answer: c) Production of digestive enzymes
79. The process of reabsorbing bile acids in the small intestine is called:
a) Enterohepatic circulation
b) Peristalsis
c) Emulsification
d) Glycolysis
Answer: a) Enterohepatic circulation
80. Which of the following best describes the function of Peyer's patches in the small intestine?
a) Increase surface area for absorption
b) Produce digestive enzymes
c) Part of the immune system
d) Regulate peristalsis
Answer: c) Part of the immune system
81. The hormone that stimulates the breakdown of glycogen in the liver is:
a) Insulin
b) Glucagon
c) Gastrin
d) Secretin
Answer: b) Glucagon
82. Which of the following is NOT a function of the pancreas?
a) Production of digestive enzymes
b) Secretion of insulin
c) Neutralization of stomach acid
d) Storage of bile
Answer: d) Storage of bile
83. The process of converting glucose to lactic acid in the absence of oxygen is called:
a) Aerobic respiration
b) Anaerobic respiration
c) Gluconeogenesis
d) Glycogenesis
Answer: b) Anaerobic respiration
84. Which of the following best describes the function of chief cells in the stomach?
a) Produce hydrochloric acid
b) Secrete pepsinogen
c) Produce intrinsic factor
d) Secrete mucus
Answer: b) Secrete pepsinogen
85. The hormone that stimulates the contraction of the gallbladder is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Insulin
Answer: c) Cholecystokinin
86. Which of the following is NOT a function of the large intestine?
a) Water absorption
b) Electrolyte absorption
c) Production of vitamin K
d) Protein digestion
Answer: d) Protein digestion
87. The process of breaking down glycogen into glucose in the liver is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Glycogenolysis
Answer: d) Glycogenolysis
88. Which of the following enzymes is responsible for breaking down nucleic acids?
a) Amylase
b) Lipase
c) Nuclease
d) Peptidase
Answer: c) Nuclease
. Which of the following is NOT a function of the small intestine?
a) Nutrient absorption
b) Mixing of food with digestive enzymes
c) Secretion of bile
d) Continuation of chemical digestion
Answer: c) Secretion of bile
57. The process of breaking down glucose to produce energy is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Glycogenolysis
Answer: a) Glycolysis
58. Which of the following best describes the function of enterocytes?
a) Secrete mucus
b) Absorb nutrients
c) Produce hormones
d) Break down food particles
Answer: b) Absorb nutrients
59. The hormone that stimulates the production of hydrochloric acid in the stomach is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Pepsin
Answer: b) Gastrin
60. Which of the following is NOT a function of bile in digestion?
a) Emulsification of fats
b) Neutralization of stomach acid
c) Activation of lipase
d) Absorption of fat-soluble vitamins
Answer: c) Activation of lipase
61. The process of converting amino acids to glucose is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Transamination
Answer: b) Gluconeogenesis
62. Which of the following is responsible for the majority of protein digestion?
a) Mouth
b) Stomach
c) Small intestine
d) Large intestine
Answer: c) Small intestine
63. The hormone that stimulates the release of digestive enzymes from the pancreas is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Insulin
Answer: c) Cholecystokinin
64. Which of the following is NOT a function of the large intestine?
a) Water absorption
b) Electrolyte absorption
c) Formation of feces
d) Protein digestion
Answer: d) Protein digestion
65. The final products of fat digestion are:
a) Amino acids
b) Fatty acids and glycerol
c) Monosaccharides
d) Nucleotides
Answer: b) Fatty acids and glycerol
66. Which of the following is responsible for the absorption of most vitamins and minerals?
a) Stomach
b) Duodenum
c) Jejunum
d) Ileum
Answer: c) Jejunum
67. The process of moving food from the mouth to the stomach is called:
a) Peristalsis
b) Churning
c) Absorption
d) Emulsification
Answer: a) Peristalsis
68. Which of the following enzymes is responsible for breaking down peptides into amino acids?
a) Amylase
68. Which of the following enzymes is responsible for breaking down peptides into amino acids?
a) Amylase
b) Lipase
c) Peptidase
d) Nuclease
Answer: c) Peptidase
69. The hormone that stimulates the release of glucagon from the pancreas is:
a) Insulin
b) Gastrin
c) Secretin
d) Epinephrine
Answer: d) Epinephrine
70. Which of the following is NOT a function of the stomach?
a) Protein digestion
b) Mixing of food with gastric juices
c) Storage of food
d) Absorption of most nutrients
Answer: d) Absorption of most nutrients
71. The process of breaking down complex carbohydrates into simple sugars is called:
a) Proteolysis
b) Lipolysis
c) Glycolysis
d) Amylolysis
Answer: d) Amylolysis
72. Which of the following best describes the function of brush border enzymes?
a) Break down food particles
b) Secrete mucus
c) Complete the digestion of carbohydrates and proteins
d) Produce hormones
Answer: c) Complete the digestion of carbohydrates and proteins
73. The hormone that stimulates the production of bicarbonate-rich fluid from the pancreas is:
a) Gastrin
b) Secretin
c) Cholecystokinin
d) Insulin
Answer: b) Secretin
74. Which of the following is NOT absorbed in the small intestine?
a) Glucose
b) Amino acids
c) Fatty acids
d) Cellulose
Answer: d) Cellulose
75. The process of converting excess amino acids into fat or glucose is called:
a) Deamination
b) Transamination
c) Glycogenesis
d) Gluconeogenesis
Answer: a) Deamination
76. Which of the following is responsible for the production of intrinsic factor?
a) Liver
b) Pancreas
c) Stomach
d) Small intestine
Answer: c) Stomach
77. The enzyme responsible for breaking down triglycerides in the small intestine is:
a) Amylase
b) Pepsin
c) Lipase
d) Trypsin
Answer: c) Lipase
78. Which of the following is NOT a function of the liver in digestion and metabolism?
a) Synthesis of bile
b) Storage of vitamins
c) Production of digestive enzymes
d) Detoxification of harmful substances
Answer: c) Production of digestive enzymes
79. The process of reabsorbing bile acids in the small intestine is called:
a) Enterohepatic circulation
b) Peristalsis
c) Emulsification
d) Glycolysis
Answer: a) Enterohepatic circulation
80. Which of the following best describes the function of Peyer's patches in the small intestine?
a) Increase surface area for absorption
b) Produce digestive enzymes
c) Part of the immune system
d) Regulate peristalsis
Answer: c) Part of the immune system
81. The hormone that stimulates the breakdown of glycogen in the liver is:
a) Insulin
b) Glucagon
c) Gastrin
d) Secretin
Answer: b) Glucagon
82. Which of the following is NOT a function of the pancreas?
a) Production of digestive enzymes
b) Secretion of insulin
c) Neutralization of stomach acid
d) Storage of bile
Answer: d) Storage of bile
83. The process of converting glucose to lactic acid in the absence of oxygen is called:
a) Aerobic respiration
b) Anaerobic respiration
c) Gluconeogenesis
d) Glycogenesis
Answer: b) Anaerobic respiration
84. Which of the following best describes the function of chief cells in the stomach?
a) Produce hydrochloric acid
b) Secrete pepsinogen
c) Produce intrinsic factor
d) Secrete mucus
Answer: b) Secrete pepsinogen
85. The hormone that stimulates the contraction of the gallbladder is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Insulin
Answer: c) Cholecystokinin
86. Which of the following is NOT a function of the large intestine?
a) Water absorption
b) Electrolyte absorption
c) Production of vitamin K
d) Protein digestion
Answer: d) Protein digestion
87. The process of breaking down glycogen into glucose in the liver is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Glycogenolysis
Answer: d) Glycogenolysis
88. Which of the following enzymes is responsible for breaking down nucleic acids?
a) Amylase
b) Lipase
c) Nuclease
d) Peptidase
Answer: c) Nuclease
89. The hormone that stimulates the production of bicarbonate-rich pancreatic juice is:
a) Gastrin
b) Secretin
c) Cholecystokinin
d) Insulin
Answer: b) Secretin
90. Which of the following is NOT absorbed in the large intestine?
a) Water
b) Sodium
c) Potassium
d) Amino acids
Answer: d) Amino acids
91. The process of converting glucose to glycogen for storage is called:
a) Glycolysis
b) Gluconeogenesis
c) Glycogenesis
d) Glycogenolysis
Answer: c) Glycogenesis
92. Which of the following best describes the function of parietal cells in the stomach?
a) Produce hydrochloric acid
b) Secrete pepsinogen
c) Produce intrinsic factor
d) Secrete mucus
Answer: a) Produce hydrochloric acid and c) Produce intrinsic factor
93. The hormone that stimulates the release of bile from the gallbladder is:
a) Secretin
b) Gastrin
c) Cholecystokinin
d) Insulin
Answer: c) Cholecystokinin
94. Which of the following is NOT a function of saliva?
a) Lubrication of food
b) Initial digestion of carbohydrates
c) Antibacterial action
d) Protein digestion
Answer: d) Protein digestion
95. The process of breaking down proteins into peptides and amino acids is called:
a) Glycolysis
b) Lipolysis
c) Proteolysis
d) Amylolysis
Answer: c) Proteolysis
96. Which of the following best describes the function of enteroendocrine cells in the intestine?
a) Secrete mucus
b) Absorb nutrients
c) Produce hormones
d) Break down food particles
Answer: c) Produce hormones
97. The hormone that stimulates insulin secretion in response to elevated blood glucose levels
is:
a) Glucagon
b) Gastrin
c) Secretin
d) Glucose-dependent insulinotropic polypeptide (GIP)
Answer: d) Glucose-dependent insulinotropic polypeptide (GIP)
98. Which of the following is NOT a function of the liver in digestion?
a) Production of bile
b) Storage of vitamins
c) Detoxification
d) Secretion of lipase
Answer: d) Secretion of lipase
99. The process of absorbing fat-soluble vitamins (A, D, E, K) primarily occurs in the:
a) Stomach
b) Duodenum
c) Jejunum
d) Ileum
Answer: c) Jejunum
100. Which of the following best describes the function of the ileocecal valve?
a) Prevents backflow of contents from the large intestine to the small intestine
b) Regulates the release of bile into the duodenum
c) Controls the flow of food from the stomach to the small intestine
d) Prevents acid reflux from the stomach to the esophagus
Answer: a) Prevents backflow of contents from the large intestine to the small intestine
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