- A) ADP
- B) FADH₂
- C) Hexokinase
- D) NADPH
Biochemistry MCQ
Total MCQ: 92
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62 In glycolysis, there is a net gain of _____ ATP.
- A) 3
- B) 2
- C) 5
- D) 4
63 What is the function of the malate shuttle?
- A) To generate ATP in the mitochondria
- B) To transport NADH from the cytoplasm to the mitochondria
- C) To transport FADH2 from the mitochondria to the cytoplasm
- D) To synthesize glucose in the liver
64 Which of the following is NOT a function of uncouplers?
- A) Generating heat
- B) Inhibiting ATP synthesis
- C) Increasing proton gradient
- D) Allowing oxidation without phosphorylation
65 Which of the following is a mobile electron carrier in the ETC?
- A) Coenzyme Q (CoQ)
- B) Cytochrome c (Cyt c)
- C) Flavin mononucleotide (FMN)
- D) All of the above
66 In the malate shuttle, reducing equivalents from NADH are accepted by which compound in the cytoplasm?
- A) Aspartate
- B) Malate
- C) Dihydroxyacetone phosphate
- D) Oxaloacetate
67 What is the final recipient of electrons in the ETC?
- A) Oxygen (O2)
- B) Water (H2O)
- C) ATP
- D) NADH
68 Which complex in the ETC is responsible for transferring electrons to oxygen?
- A) Complex I
- B) Complex II
- C) Complex III
- D) Complex IV
69 Which complex in the ETC is also known as NADH-CoQ reductase?
- A) Complex I
- B) Complex II
- C) Complex III
- D) Complex IV
70 What is the function of thermogenin?
- A) To generate ATP in the mitochondria
- B) To transport NADH from the cytoplasm to the mitochondria
- C) To uncouple oxidation from phosphorylation in the mitochondria
- D) To synthesize glucose in the liver