Multiple Choice

1. Metabolic reactions can be

A. anaerobic.

B. aerobic.

C. anabolic.

D. all of the above

2. Which of the following statements is true?

A. Metabolism consists of a pathway that breaks down glucose.

B. Metabolism consists of a pathway that breaks down protein.

C. Metabolism consists of a pathway that breaks down lipids.

D. Metabolism consists of the sum of all chemical reactions in the body.

3. Metabolism occurs in

A. any cell in the body.

B. hepatocytes.

C. the stomach.

D. the small intestine.

4. Which of the following is the site of aerobic metabolism?

A. ribosome

B. plasma membrane

C. mitochondrion

D. cytosol

5. Which of the following is the site of anaerobic metabolism?

A. ribosome

B. plasma membrane

C. smooth endoplasmic reticulum

D. cytosol

6. Which of the following is the site of protein synthesis?

A. ribosome

B. plasma membrane

C. mitochondrion

D. cytosol

7. Which of the following is the site of lipid synthesis?

A. ribosome

B. plasma membrane

C. smooth endoplasmic reticulum

D. cytosol

8. Which of the following statements is true regarding metabolism?

A. It involves a series of reactions.

B. It converts one compound to another.

C. It requires or produces energy.

D. All of the above are true.

9. An anabolic reaction

A. requires energy.

B. combines simple compounds to form more complex ones.

C. breaks down complex compounds into simpler ones.

D. does A and B.

10. A catabolic reaction

A. requires energy.

B. produces energy.

C. breaks down complex compounds into simpler ones.

D. does B and C.