Nutrition
Chapter 7
Questions
1. Define Metabolism.
The sum total of all chemical reactions that go on in living cells.
2. A typical cell contains “powerhouses,” which is another name for the
a. DNA
b. ribosomes
c. mitochondria
d. electron transport chain
3. The major energy carrier molecule in most cells is
a. ATP
b. Glucose
c. Pyruvate
d. A kcalorie
4. Glycolysis is the conversion of glucose to pyruvate.
a. True
b. False
5. What is the first product of fatty acid catabolism?
Acetyl CoA
6. Briefly describe the difference between an Anabolic and Catabolic Reaction.
Anabolic: small to large. Requires energy
Catabolic: large to small. Release energy
7. What is the major fuel for the central nervous system?
Afucose
8. A small non-protein organic substance that promotes optimal activity of an enzyme is called what?
Coenzyme
9. What is ketosis and what condition is it associated with?
Drop in Ph level. Loss of appetite
10. During the first few days of a fast, what energy source provides about 90% of the glucose needed
to fuel the body?
a. Protein
b. Ketones
c. Glycogen
d. Triglycerides
