Cellular Respiration Quiz



Cellular Respiration Quiz

1. PFK is allosterically regulated by

A. ATP

B. ADP

C. Glucose

D. A & B only

E. All of the above

2. Glycolysis produces a net energy gain of ________________ from one glucose molecule.

A. 2 NADH, 2 ATP, 2 Pyruvate

B. 1 NADH, 1 ATP, 1 Pyruvate

C. 2 NADH, 2 ATP, 2 Citrate

D. 1 NADH, 1 ATP, 1 Citrate

E. None of the above

3. Steps 1-5 of glycolysis ___________________

A. Consume energy

B. Release energy

C. Neither of the above

4. Glycolysis happens in the ________________ and Kreb’s Cycle happens _______________.

A. Cytoplasm, in the cytoplasm

B. Cytoplasm, across the outer mitochondrial membrane

C. Cytoplasm, in the mitochondrial matrix

D. Across the outer mitochondrial membrane, in the cytoplasm

E. None of the Above

5. The ATP produced during glycolysis and Kreb’s Cycle are synthesized via

A. Allosteric regulation

B. Substrate-level phosphorylation

C. Oxidative phosphorylation

D. ATP synthase

E. Phosphofructokinase

6. Before entering the Kreb’s Cycle, pyruvate is converted to ___________ which has a high energy _________________ bond.

A. Coenzyme A, phosphodiester

B. AcetylCoA, sulfhydryl

C. AcetylCoA, thioester

D. Citrate, phosphodiester

E. None of the above

7. During Kreb’s Cycle, citrate is converted into ___________, allowing the cycle to continue.

A. AcetylCoA

B. Pyruvate

C. Glucose

D. Oxaloacetate

E. A & D

8. The net energy produced per pyruvate during Kreb’s Cycle is

A. 3 NADH, 1 FADH2, 1 ATP

B. 6 NADH, 1 FADH2, 2 ATP

C. 3 NADH, 1 FADH2, 1 ATP, CO2

D. 6 NADH, 1 FADH2, 2 ATP, CO2

E. 1 NADH, 1 ATP

9. Most of the bond energy of glucose is recovered via

A. Substrate-level phosphorylation

B. Oxidative phosphorylation

C. Anaerobic respiration

D. Lactic acid fermentation

10. The electrons from NADH and FADH2 are used to oxidize proteins of the electron transport chain.

A. True

B. False

11. __________ is the ultimate acceptor of electrons from the electron transport chain.

A. Water

B. Oxygen

C. NAD+

D. FAD

E. None of the above

12. Oxidative phosphorylation is the synthesis of ATP by harnessing the energy of an electrochemical gradient.

A. True

B. False

13. Which of the following statements are false?

A. Glycolysis can occur with or without oxygen

B. Glycolysis occurs in the mitochondria

C. Glycolysis is the first step in both aerobic and anaerobic respiration

D. Glycolysis produces 2ATP, 2 NADH, and 2 pyruvate

14. This process uses NADH and FADH2 to produce ATP

A. Oxidative phosphorylation

B. Fermentation

C. Glycolysis

D. Krebs Cycle

15. This process begins with the production of Acetyl-CoA

A. Chemiosmosis

B. Glycolysis

C. Fermentation

D. Krebs Cycle

16. Oxidative phosphorylation is also known as

A. Chemiosmosis

B. Glycolysis

C. Fermenntation

D. Electron Transport chain

17. Which of the following processes produces the most ATP?

A. Glycolysis

B. Oxidative phosphorylation

C. Fermentation

D. Krebs cycle

18. Which of the following is the products of the Krebs cycle?

A. ATP

B. NADH

C. FADH

D. All of these

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