1. Which of the following is false regarding metabolism? A. In Metabolism, food

Question

1. Which of the following is false regarding metabolism?

A. In Metabolism, food is oxidized.

B. Metabolism is a fast process requiring only a few steps.

C. During metabolism, energy is captured by ATP.

D. Metabolism wastes very little energy as heat.

2. Metabolism involves catabolic and anabolic reactions. Catabolic reactions are the opposite of anabolic reactions.

3. All food provides the same amount of energy when metabolized.

4. Which of the following is incorrect?

A. A carboxylic acid is a highly oxidized compound.

B. A highly oxidized compound can provide more energy in metabolizm than a compound with low oxidation.

C. Oxidation releases energy.

D. Energy is neither created and destroyed in metabolism.

5. Fats are at lower oxidation states than carbohydrates.

6. Hydrolysis of ATP (to form ADP) requires energy.

7. In metabolism, food gets oxidized and the coenzymes NAD+ and FAD are reduced.

8. Which of the following does not undergo oxidation or reduction during metabolism?

A. lipids

B. Coenzyme A

C. carbohydrates

D. FAD

9. Which of the following is not a coenzyme?

A. NAD+

B. Coenzyme A

C. ATP

D. FAD

10. Which of the following is false regarding FAD?

A. FAD is an oxidizing agent.

B. FAD is the oxidized form.

C. FAD is a coenzyme

D. FADH2 is an oxidizing agent.

11. How many carbon atoms are present in an acetyl group?

A. 1

B. 2

C. 3

D. 4

12. The purpose of coenzyme A is to deliver acetyl groups to the citric acid cycle.

13. What reacts with NADH and FADH2 to form NAD+ and FAD?

A. carbon dioxide

B. water

C. ATP

D. oxygen (and H+)

14. Which metabolic process oxidizes NADH and FADH2

A. electron transport chain

B. oxidative phosphorylation

C. citric acid cycle

D. hydrolysis

15. Which metabolic process converts ADP to ATP?

A. electron transport chain

B. oxidative phosphorylation

C. citric acid cycle

D. hydrolysis

A. In Metabolism, food is oxidized.

B. Metabolism is a fast process requiring only a few steps.

C. During metabolism, energy is captured by ATP.

D. Metabolism wastes very little energy as heat.

Explanation / Answer

Ans 1 : D Metabolism wastes very little energy as heat.

This is a false statement because according to the second law of thermodynamics , the loss of energy is involved with the process of metabolism. This energy is lost to the environment in the form of heat.

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