Discussion
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- Question
How many molecules of carbon dioxide will be given off during ten turns of the Krebs cycle?
Options- A. 10
- B. 20
- C. 30
- D. 40
- Correct Answer
- 20
- 1. In glycolysis, ATP is created by
Options- A. photophosphorylation
- B. the chemiosmotic mechanism
- C. substrate level phosphorylation
- D. the pentose phosphate pathway Discuss
- 2. The number of ATP molecules produced from one glucose molecule by a bacterium producing lactic acid is
Options- A. greater than producing ethanol
- B. lesser than producing ethanol
- C. approximately equal to producing ethanol
- D. none of these Discuss
- 3. The enzymes for glycolysis are located
Options- A. on the inner surface of the cell membrane
- B. on the inner membrane of the mitochondrion
- C. on the outer membrane of the chloroplast
- D. in the cytoplasm Discuss
- 4. Most bacterial fermentations yield how many net ATP molecules per molecule of glucose?
Options- A. 1
- B. 2
- C. 4
- D. 6 Discuss
- 5. A yeast or fungal cell produces how many net ATP molecules per molecule of glucose when completely oxidized?
Options- A. 32
- B. 34
- C. 36
- D. 38 Discuss
- 6. The enzymes that catalyze the reactions of the Krebs cycle are found in which subcellular organelle of eukaryotes?
Options- A. Mitochondrion
- B. Chloroplast
- C. Ribosome
- D. Endoplasmic reticulum Discuss
- 7. Which of the following best explains about the usefulness of the production of ethanol in yeast cells under anaerobic conditions?
Options- A. Ethanol keeps the electron transport system functioning
- B. Yeast would be unable to activate the enzymes of the Krebs cycle without ethanol
- C. The process generates oxygen, which is required for glycolysis
- D. The process regenerates NAD+, which is required for glycolysis Discuss
- 8. Which of the following is the most complete definition of fermentation?
Options- A. Oxidation of glucose with organic molecules serving as electron acceptors
- B. Complete catabolism of glucose to CO2 and HO2
- C. Production of energy by substrate-level phosphorylation
- D. Production of ethyl alcohol from glucose Discuss
- 9. Aerobic respiration differs from anaerobic respiration in which of the following respects?
Options- A. Anaerobic respiration is glycolysis
- B. Aerobic respiration requires the electron transport chain
- C. The final electron acceptors are different
- D. Aerobic respiration produces less ATP Discuss
- 10. Which of the following is accomplished in chemiosmosis?
Options- A. The oxidation of ATP
- B. The oxidation of water
- C. The oxidation of NADH
- D. The oxidation of CO2 Discuss
Energy Release and Conservation problems
Search Results
Correct Answer: substrate level phosphorylation
Correct Answer: approximately equal to producing ethanol
Correct Answer: in the cytoplasm
Correct Answer: 2
Correct Answer: 36
Correct Answer: Mitochondrion
Correct Answer: The process regenerates NAD+, which is required for glycolysis
Correct Answer: Oxidation of glucose with organic molecules serving as electron acceptors
Correct Answer: The final electron acceptors are different
Correct Answer: The oxidation of NADH
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