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1. Which statement regarding the chemiocmotic theory is NOT true? a. it is depen

ID: 829792 • Letter: 1

Question

1. Which statement regarding the chemiocmotic theory is NOT true?

a. it is dependent on an inner mitochondrial membrane that is not very permeable

b. the electron transport chain requires copper in the process of oxidizing only NADH but not FAD

c. electron transport through electron transport chain generates proton gradient

d. phosphorylation of ADP is linked to the splitting of water to O2

e. the proton gradient increases in the intermembrane space relative to the matrix

2. According to the binding-change mechanism, what step in the synthesis of ATP consumes the proton gradient?

a. the initial binding of ADP

b. the binding of both ADP and Pi

c. the release of ATP

d. the hydrolysis of ATP

3. A direct inhibitor of the ATP synthase in the presence of active electron transport:

a. would increase membrane potential

b. would decrease membrane potential

c. would increase electron transport rates

d. would decrease the pH gradient.

4. Which of the following statements about glycogen and its catabolism is NOT true?

a. The function of glycogen in the liver is to supply glucose to the blood when needed

b. the function of glycogen is muscle is to supply energy for muscle contractions

c. When glycogenolysis is active in liver, glycolysis is ususally inactive

d. when glycogenolysis is active in muscle, glycolysis is usually inactive

e. Liver, but not muscle, has the enzyme glucose-6-phosphatase

Explanation / Answer

1.b. the electron transport chain requires copper in the process of oxidizing only NADH but not FAD

2.b. the binding of both ADP and Pi

3.b. would decrease membrane potential

4.b. the function of glycogen is muscle is to supply energy for muscle contractions