- A) Rotenone
- B) Malonate
- C) Antimycin
- D) Cyanide
Biochemistry MCQ
Total MCQ: 92
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72 What is the function of the glycerol 3-phosphate 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
73 Which of the following is a heme-containing protein in the ETC?
- A) Cytochrome c (Cyt c)
- B) Coenzyme Q (CoQ)
- C) Flavin mononucleotide (FMN)
- D) NADH
74 What is the function of the F0 component in the mitochondria?
- A) To generate ATP in the mitochondria
- B) To transport NADH from the cytoplasm to the mitochondria
- C) To form a proton channel in the inner mitochondrial membrane
- D) To synthesize glucose in the liver
75 Which of the following is an uncoupler of oxidative phosphorylation?
- A) Dinitrocresol
- B) Oligomycin
- C) Rotenone
- D) Cyanide
76 What is the role of cytochrome c reductase in the ETC?
- A) To transfer electrons from NADH to CoQ
- B) To transfer electrons from CoQ to cytochrome c
- C) To transfer electrons from cytochrome c to oxygen
- D) To generate ATP
77 Which complex in the ETC is known as succinyl-CoQ reductase?
- A) Complex I
- B) Complex II
- C) Complex III
- D) Complex IV
78 What is the primary function of the electron transport chain?
- A) To synthesize glucose
- B) To generate ATP
- C) To transport electrons and pump protons
- D) To produce NADH
79 Which of the following compounds is known to block Complex IV in the ETC?
- A) Oligomycin
- B) Cyanide
- C) Malonate
- D) Rotenone
80 How many ATP can be generated from one molecule of NADH in the ETC?
- A) 1 ATP
- B) 2 ATP
- C) 3 ATP
- D) 4 ATP