MDCAT Biology MCQ #350

During the payoff phase of glycolysis, glyceraldehyde-3-phosphate is oxidized. Which event occurs simultaneously with the addition of inorganic phosphate?

MDCAT Biology MCQ #350

  1. Question 1

    Q1. During the payoff phase of glycolysis, glyceraldehyde-3-phosphate is oxidized. Which event occurs simultaneously with the addition of inorganic phosphate?

    • A) FAD is reduced
    • B) NAD+ is reduced
    • C) NADP+ is reduced
    • D) ATP is consumed

    Answer: NAD+ is reduced

    Explanation: NAD+ is reduced to NADH during the oxidation of glyceraldehyde-3-phosphate. FAD is incorrect because it functions only within the mitochondrial matrix.