- A) NAD⁺ is oxidized
- B) ATP synthase pumps protons
- C) Cytochromes phosphorylate ADP
- D) pH of the matrix increases
Biochemistry MCQ
Total MCQ: 92
Quiz Leaderboard
1st
Sourav
Score: 90%
Questions: 20
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Priyanka
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Questions: 10
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Nischal
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Vesnce
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Questions: 20
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Hector
Score: 40%
Questions: 10
6th
Hykss
Score: 20%
Questions: 10
42 How many NADH are produced by glycolysis?
- A) 3
- B) 2
- C) 4
- D) 5
43 Most CO₂ from catabolism is released during
- A) Citric acid cycle
- B) Oxidative phosphorylation
- C) Glycolysis
- D) Electron transport
44 In glycolysis, ATP molecules are produced by
- A) Substrate-level phosphorylation
- B) Photosynthesis
- C) Cellular respiration
- D) Photophosphorylation
45 In muscle cells, fermentation produces _____
- A) CO₂, ethanol, NADH, ATP
- B) Pyruvate
- C) Lactate and NAD⁺
- D) CO₂, ethanol, and NAD⁺
46 Which of these is NOT a product of glycolysis?
- A) NADH
- B) FADH₂
- C) Pyruvate
- D) ATP
47 In fermentation _____ is reduced and _____ is oxidized.
- A) Pyruvate ... NADH
- B) Lactate ... NADH
- C) NADH ... Lactate
- D) NAD⁺ ... Pyruvate
48 In glycolysis, what starts the process of glucose oxidation?
- A) ADP
- B) FADH₂
- C) Hexokinase
- D) NADPH
49 In glycolysis, there is a net gain of _____ ATP.
- A) 3
- B) 2
- C) 5
- D) 4
50 Which statement about the citric acid cycle is correct?
- A) Depends on NAD+, a product of glycolysis
- B) Requires molecular oxygen
- C) Produces most ATP
- D) Final product is substrate for first reaction