Chapter 10 – Breaking Bonds: Cellular Respiration Cellular respiration involves the use of ____ to produce ATP. A. amino acids B. triglycerides C. glucose D. glycogen

Cellular respiration involves the use of ____ to produce ATP.

A. amino acids B. triglycerides C. glucose D. glycogen

C. glucose

2. Which of the following serves as the energy currency of living systems?

A. FADH2 B. ATP C. NADH D. glucose

B. ATP

3. Which of the following steps in cellular respiration is an anaerobic process?

A. glycolysis C. electron transport chain

B. citric acid cycle D. all of these

A. glycolysis

4. _____ is an end product of cellular respiration used by plants to build carbohydrates.

A. H2O B. CO2 C. ATP D. O2

B. CO2

5. The first step of cellular respiration is known as _____.

A. fermentation C. the citric acid cycle

B. the electron transport chain D. glycolysis

D. glycolysis

6. The citric acid cycle occurs in the _____ of the cell.

A. nucleus B. cytoplasm C. mitochondria D. plasma membrane

C. mitochondria

8. Alcoholic fermentation is an essential process in making _____.

A. wine B. beer C. bread D. all of these

D. all of these

9. The citric acid cycle is also known as the ____ cycle.

A. Newton B. Jansen C. Krebs D. Pasteur

C. Krebs

10. Which of the following processes yields the most ATP?

A. electron transport chain C. glycolysis

B. citric acid cycle D. lactic acid fermentation

A. electron transport chain

11. In making bread, the fermentation of yeast produces ____, which causes the bread to rise.

A. O2 B. ethanol C. CO2 D. acetaldehyde

C. CO2

12. What is the NET gain in the number of ATP molecules from glycolysis?

A. 2 B. 4 C. 6 D. 32

A. 2

13. FADH2 is produced during which of the following?

A. glycolysis C. citric acid cycle

B. electron transport chain D. all of these

C. citric acid cycle

14. How many ATP molecules are produced by the citric acid cycle?

A. 2 B. 4 C. 6 D. 8

A. 2

15. Which of the following is an end product of alcoholic fermentation?

A. acetyl CoA B. lactic acid C. ethanol D. acetaldehyde

C. ethanol

16. Lactic acid fermentation _____.

A. is an aerobic process C. results in the production of acetone

B. is an anaerobic process D. produces large amounts of ATP

B. is an anaerobic process

Which of the following is a major end product of glycolysis?

A. acetyl CoA B. lactic acid C. ethanol D. pyruvate

D. pyruvate

18. During aerobic respiration, pyruvate is converted to _____, which enters the citric acid cycle.

    A. FADH2 B. acetyl CoA C. ATP D. citric acid

B. acetyl CoA

19. How many ATP molecules are produced by the electron transport chain?

A. 4 B. 12 C. 24 D. 32

D. 32

20. Which of the following is the final electron acceptor in the electron transport chain?

    A. CO2 B. O2 C. H2O D. ATP

B. O2

21. While running, you become winded, and your leg muscles start to ache. Which of the following

is building up in your leg muscles, causing them to ache?

A. lactic acid B. pyruvate C. acetyl CoA D. glucose

A. lactic acid

22. Complete the following equation: C6H12O6 + 6 O2 → _____ + 6 H2O.

A. 4 CO2 B. 6 CO2 C. 3 O2 D. 6 O2

B. 6 CO2

23. What is the NET number of ATP produced as a result of glycolysis, the citric acid cycle, and

the electron transport chain?

A. 30 B. 32 C. 36 D. 38

C. 36

24. Bromothymol blue is used as an indicator to detect CO2 production in a closed system. In the

presence of CO2, bromothymol blue will change from blue to ______.

A. greenish-yellow B. blue-green C. yellow D. red

A. greenish-yellow

25. During alcoholic fermentation, pyruvate is directly converted to ____, accompanied by the loss of CO2.

A. acetaldehyde B. ethanol C. glucose D. lactic acid

A. acetaldehyde

26. A solution of water, glucose, and yeast placed in an anaerobic environment will produce which

of the following?

A. ethanol B. CO2 C. NAD+ D. all of these

D. all of these

27. Complete the following equation: Glucose + 2ADP + Pi → 2 _____ + 2 ATP + 2 H2O.

A. lactate B. pyruvate C. ethanol D. NADH

A. lactate

28. Following alcoholic fermentation, the ______ produced allows glycolysis to continue.

A. CO2 B. ATP C. NAD+ D. ethanol

C. NAD+

29. Which of the following is a substrate for aerobic cellular respiration?

A. O2 B. CO2 C. C6H12O6 D. H2O

A. O2

30. Glycolysis is the process wherein one molecule of glucose is converted to _____ molecule(s)

of pyruvate.

A. one B. two C. three D. four

B. two