Energy Release and Conservation problems
- 1. For each pair of electrons passing from NADH located inside the mitochondria to oxygen, how many ATP molecules can be generated?
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
Correct Answer: 3
- 2. 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
Correct Answer: 36
- 3. Most bacterial fermentations yield how many net ATP molecules per molecule of glucose?
Options- A. 1
- B. 2
- C. 4
- D. 6 Discuss
Correct Answer: 2
- 4. 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
Correct Answer: in the cytoplasm
- 5. 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
Correct Answer: approximately equal to producing ethanol
- 6. In glycolysis, ATP is created by
Options- A. photophosphorylation
- B. the chemiosmotic mechanism
- C. substrate level phosphorylation
- D. the pentose phosphate pathway Discuss
Correct Answer: substrate level phosphorylation
- 7. 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 Discuss
Correct Answer: 20
- 8. 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
Correct Answer: Mitochondrion
- 9. 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
Correct Answer: The process regenerates NAD+, which is required for glycolysis
- 10. 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
Correct Answer: Oxidation of glucose with organic molecules serving as electron acceptors
More in Microbiology:
Programming
Copyright ©CuriousTab. All rights reserved.