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The reduced coenzymes generated by the citric acid cycle donateelectrons in a series of reactions called the electron transportchain. The energy from the electron transport chain is used foroxidative phosphorylation.

a)Which compounds donate electrons to the electron transportchain?
b)Which of the following is the final electron acceptor?
c) Which of the following are the final products of the electrontransport chain and oxidative phosphorylation?

Answer choices for a), b), and c) (maybe used more than once)
1. H20
2. NADH
3. NAD+
4. ATP
5. ADP
6. O2
7. FADH2
8. FAD

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Hubert Koch
Hubert KochLv2
26 Mar 2019
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Related questions

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

True
False

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.

True
False

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

The primary function of the electron transport chain and oxidative phosphorylation is which of the following?

A. to provide electrons and energy for the phosphorylation of ATP

B.to synthesize the reduced coenzymes necessary for digestion

C. to oxidize the reduced coenzymes NADH and FADH2, and provide energy for the synthesis of ATP

D. to transport electrons from ATP to ADP, and synthesize acetyl CoA molecules

1-9 Match the following statements with the parameters A to I below.

1- Metabolite with different origins and several metabolic fates

2) Metabolite which is not consumed in the central metabolic pathway

3) Metabolite which is consumed in a metabolic pathway

4) Metabolic pathway with the same initial and final metabolite

5) Set of metabolic reactions which replenish the central metabolic pathway

6 Set of reactions through which the hydrogen ions and electrons are transferred from reduced cofactors to oxygen, obtaining water and releasing energy

7- Set of reaction which permit the interconversion of several metabolites, the end of the catabolism and the beginning of anabolism

8- Pathway which has both a catabolic and an anabolic role

9) The biosynthesis of ATP using the energy released in the electron transport chain

a) Central and amphibolic pathway

b) Feeding metabolite

c) Anaplerotic pathway

d) Electron transport chain

e) Anaplerotic metabolite

f) Crossroad metabolite

g) Oxidative phosphorylation

h) Amphibolic pathway

i) Metabolic cycle

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