Question 1
2/ 2pts
In most humans, lactase activity begins to decline at about age 2.
True
False
Question 2
2/ 2pts
Starch is a ____.
monosaccharide
disaccharide
polysaccharide
sugar alcohol
Question 3
2/ 2pts
Which of the following is considered a functional fiber?
Cellulose
Glycogen
Glucose
Maltose
Question 4
2/ 2pts
An example of a food that has a high glycemic index (GI) is ____.
T-bone steak
beans and legumes
white bread
broccoli
Question 5
2/ 2pts
What is the composition of maltose?
Two glucose units
One glucose and one fructose unit
One glucose and one galactose unit
One galactose and one fructose unit
Question 6
2/ 2pts
Why are many people unable to digest milk sugar?
They lack pancreatic amylase.
They lack the proper intestinal bacteria.
They were not breast-fed.
They have a lactase deficiency.
Question 7
2/ 2pts
An example of a disaccharide is ____.
glucose
lactose
cellulose
starch
Question 8
2/ 2pts
The usual carbohydrate recommendation for most athletes is 75% of his or her total caloric intake.
True
False
Question 9
2/ 2pts
What is the intended meaning of the marketing term “low-impact carbs”?
Carbohydrate foods that are burned for energy rather than stored as fat.
Carbohydrate foods with fewer kilocalories than similar products.
Carbohydrate foods that result in a slow rise in blood glucose and insulin.
Carbohydrate foods that contain both simple and complex carbohydrates.
Question 10
2/ 2pts
Sucrose is also known as ____.
table sugar
milk sugar
blood sugar
honey
I Question 11
0/ 2pts
A blood glucose concentration of 140 mg/dl falls within the normal range.
True
False
Question 12
2/ 2pts
Carbohydrates are the main source of energy for moderate- to high-intensity exercise.
True
False
Question 13
2/ 2pts
Which of the following is a true statement regarding vegetarian diets?
Some vegetarians consume milk or yogurt.
Obtaining an adequate amount of carbohydrates is difficult.
Many vegans consume hotdogs
It does not meet sports nutrition recommendations.
Question 14
2/ 2pts
The expected outcome if too high a carbohydrate concentration is consumed during endurance exercise is
____.
gastrointestinal distress
lightheadedness
a substantial decline in blood glucose
gluconeogenesis
Question 15
2/ 2pts
Which organ controls blood glucose by secreting insulin and glucagon?
Pancreas
Liver
Kidney
Adrenal gland
Question 16
2/ 2pts
Fructose does not appear in the blood after absorption because it is ____.
used immediately by the intestinal cells for energy
transported via the lymphatic system and taken up by cells immediately
efficiently captured by the liver and converted to glucose
absorbed by epithelial cells and remains there
Question 17
2/ 2pts
On a gram for gram basis, protein has approximately the same amount of energy as ____.
carbohydrate
fat
alcohol
minerals
Question 18
2/ 2pts
Indispensable8refers to amino acids that the body cannot manufacture.
True
False
Question 19
2/ 2pts
The amino acids in casein are absorbed faster than the amino acids in whey.
True
False
Question 20
2/ 2pts
What is the “anabolic window?”
Amount of time between the ingestion of protein and its absorption
Amount of time between the absorption of protein and its metabolism
A post-exercise state that favors muscle recovery and growth
Any time that plasma insulin levels are low
Question 21
2/ 2pts
Which of the following foods contains primarily proteins and little carbohydrates or fats?
Whole-wheat pasta
Plain baked potato
Egg whites
Beef
Question 22
2/ 2pts
What is nitrogen balance?
The amount of protein synthesized compared to the amount8of glucose synthesized.
The amount and rate of protein turnover.
The difference between nitrogen intake and loss.
The difference between the amount of protein absorbed and the amount incorporated into skeletal muscle.
Question 23
2/ 2pts
Denaturing a protein changes the structure of the protein.
True
False
Question 24
2/ 2pts
Concerns have been raised regarding the relationship between long-term high-protein diets and the risk
for an accelerated progression of kidney disease.
True
False
Question 25
2/ 2pts
Which amino acid supplement has been shown to be effective for buffering muscle pH in athletes
performing high-intensity exercise lasting up to 4 minutes?
Nitric oxide
Glucosamine
Beta-alanine
HMB
Question 26
2/ 2pts
Which amino acid is found in the greatest concentration in the amino acid pool?
Alanine
Glutamine
Leucine
No one amino acid predominates.
Question 27
2/ 2pts
In general, it is true that the primary structure of a polypeptide determines how a protein will function.
True
False
Question 28
2/ 2pts
An enzyme is a protein that ____.
regulates metabolic processes
speeds up (catalyzes) chemical reactions
helps the body to achieve acid-base balance and optimal pH
helps maintain fluid balance
Question 29
2/ 2pts
When skeletal muscle is catabolized, the amino acids are returned to the amino acid pool.
True
False
Question 30
2/ 2pts
Which of the following statements is true regarding amino acid supplementation?
The supplements appear to be effective at recommended dose.
Amino acid supplementation is not safe.
Supplementation typically raises the concentration of amino acids above the normal level.
Possible contamination is not an issue.
I Question 31
0/ 2pts
Polypeptides are synthesized on mitochondria.
True
False
Question 32
2/ 2pts
There are 20 different amino acids that can be used to make various body proteins.
True
False
I Question 33
0/ 2pts
What is the amino acid pool?
Total amount of amino acids in the body
Total amount of amino acids in the skeletal muscles
Amino acids recently absorbed that are in need of transport
Amino acids circulating in the blood or fluid between cells
Question 34
2/ 2pts
The person that would likely get the greatest benefit from taking an omega-3 supplement for the anti-
inflammatory properties is a(n) ____.
athlete engaged in ultra-endurance activities
athlete engaged in high-intensity activities
person trained for moderate-intensity workouts
untrained person
Question 35
2/ 2pts
____ is an example of a food containing predominantly monounsaturated fat.
Olive oil
Corn oil
Hamburger
Butter
Question 36
2/ 2pts
Why is a carbohydrate-restricted diet that results in ketosis not recommended for non-diabetic athletes?
The risk of developing ketoacidosis is too great and potentially fatal
Not enough weight would be lost
The ability to train would be diminished due to inadequate replenishment of glycogen stores
Loss of weight as fat would inhibit training at higher intensities
Question 37
2/ 2pts
One of the sterols found in plants is ____.
cholesterol
estrogen
testosterone
lecithin
Question 38
2/ 2pts
As chylomicrons8 circulate in the blood, they come into contact with the enzyme ____8 (found on the
surface of small blood vessels and capillaries) which stimulates the release of the fatty acids from the
triglyceride in the blood so uptake by adipose and muscle cells can take place.
pancreatic lipase
lipoprotein lipase
hormone-sensitive lipase (HSL)
carnitine acyl transferase (CAT)
Question 39
2/ 2pts
Because fat does not mix well with water, what substance is needed for fat digestion in the
gastrointestinal tract?
Chylomicron
Low-density lipoprotein
Interstitial fluid
Bile
Question 40
2/ 2pts
When calculating a dietary prescription, why is fat intake determined after carbohydrate and protein?
Fat is easier to calculate
Fat is not an essential nutrient
Carbohydrate and protein play critical roles in training and recovery
Low-fat diets are associated with improved performance
Question 41
2/ 2pts
Fat cannot be stored in muscle.
True
False
Question 42
2/ 2pts
What is the most important factor in weight (fat) loss?
Exercise intensity
Total caloric expenditure
Use of fat as a fuel source during exercise
Elimination of calories derived from alcohol
I Question 43
0/ 2pts
The Respiratory Exchange Ratio (RER) is a measure of _____.
the ratio of fat oxidation to protein utilization
the ratio of carbon dioxide produced to the amount of oxygen consumed
the lactate threshold
VO2max
Question 44
2/ 2pts
What is the mechanism by which Olestra (Olean8®) works?
Cannot be absorbed because of its chemical structure
This product has been banned an is no longer available
Cannot be stored in adipose tissue because of its chain length
Can be broken down by the liver and eventually excreted
I Question 45
0/ 2pts
The use of the word8trans8to describe double bonds between carbons refers to ____.
a constant state of flux or transfer
instability of the bonds resulting in chemical transitions
groups that are on opposite sides
groups that are on the same side
Question 46
2/ 2pts
Blood enters tissues through ____ and leaves through ____.
arteries, capillaries
arteries, veins
veins, arteries
capillaries, veins
Question 47
2/ 2pts
Which food is likely to contain hydrogenated oil?
Whole milk
Corn on the cob
Baked potato
Stick margarine
Question 48
2/ 2pts
____ is an example of a food containing predominantly saturated fat.
Skim milk
Corn oil
Olive oil
Butter
I Question 49
0/ 2pts
____ contains only one double bond between carbons.
A saturated fatty acid
A monounsaturated fatty acid
A polyunsaturated fatty acid
Cholesterol
Question 50
2/ 2pts
Trans8fatty acids are typically described as being ____.
“straight”
“bent”
“ringed”
“steroid-like”
Quiz Score:88out of 100
