Discussion
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- Question
In anaerobic respiration, the final electron acceptor can be
Options- A. oxygen
- B. nitrate
- C. pyruvate
- D. acetyl-CoA
- Correct Answer
- nitrate
- 1. In lactic acid fermentation, the final electron acceptor would be
Options- A. fructose
- B. pyruvate
- C. glucose
- D. acetyl-CoA Discuss
- 2. How many oxygen molecules are required in the fermentation of one molecule of glucose to ethanol and CO2?
Options- A. 0
- B. 1
- C. 2
- D. 36 Discuss
- 3. The amount of ATP produced by a cell from glucose when metabolizing it by fermentation means is
Options- A. greater than by aerobic metabolism
- B. lesser than by aerobic metabolism
- C. exactly or approximately equal to by aerobic metabolism
- D. none of these Discuss
- 4. Glucose can be broken down to pyruvate by
Options- A. Entner-Doudoroff pathway
- B. tricarboxylic acid cycle
- C. both (a) and (b)
- D. none of these Discuss
- 5. The ability of CTP to bind to aspartate carbamoyltransferase and shut down the synthesis of more CTP is an example of
Options- A. enzyme induction
- B. enzyme repression
- C. feedback inhibition of enzyme activity
- D. none of these Discuss
- 6. Before most molecules can enter the Krebs citric acid cycle, they must be converted to
Options- A. citric acid
- B. oxaloacetic acid
- C. NADH or FADH
- D. acetyl-CoA Discuss
- 7. In cellular metabolism, O2 is used
Options- A. to provide electrons for photophosphorylation
- B. in glycolysis
- C. as a terminal electron acceptor
- D. in the Krebs cycle Discuss
- 8. Which one of the following is produced in the greatest numbers during one turn of the Krebs cycle?
Options- A. NADH
- B. Acetyl-CoA
- C. FADH2
- D. ATP Discuss
- 9. Organisms can synthesize ATP by oxidative phosphorylation when they
Options- A. ferment
- B. oxidize glucose to pyruvate
- C. pass electrons from the oxidation of chlorophyll through an electron transport system
- D. pass electrons to oxygen through an electron transport system containing cytochromes Discuss
- 10. Which one of the following is not produced in any of the steps of glycolysis?
Options- A. NAD+
- B. NADH
- C. ADP
- D. ATP Discuss
Energy Release and Conservation problems
Search Results
Correct Answer: pyruvate
Correct Answer: 0
Correct Answer: lesser than by aerobic metabolism
Correct Answer: Entner-Doudoroff pathway
Correct Answer: feedback inhibition of enzyme activity
Correct Answer: acetyl-CoA
Correct Answer: as a terminal electron acceptor
Correct Answer: NADH
Correct Answer: pass electrons to oxygen through an electron transport system containing cytochromes
Correct Answer: NAD+
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