MDCAT Biology MCQ #239

A single molecule of Acetyl-CoA enters the Citric Acid Cycle. What is the total yield of reduced coenzymes and ATP from this single turn?

MDCAT Biology MCQ #239

  1. Question 1

    Q1. A single molecule of Acetyl-CoA enters the Citric Acid Cycle. What is the total yield of reduced coenzymes and ATP from this single turn?

    • A) 2 NADH, 1 FADH2, 1 ATP
    • B) 3 NADH, 1 FADH2, 1 ATP
    • C) 3 NADH, 2 FADH2, 2 ATP
    • D) 6 NADH, 2 FADH2, 2 ATP

    Answer: 3 NADH, 1 FADH2, 1 ATP

    Explanation: One Acetyl-CoA yields 3 NADH, 1 FADH2, and 1 ATP. Option D is incorrect because it describes the yield for two Acetyl-CoA molecules.