MDCAT Biology MCQ #233

Before entering the Krebs cycle, pyruvate must be oxidized. Which set of events occurs during the transition (link) reaction in the mitochondrial matrix?

MDCAT Biology MCQ #233

  1. Question 1

    Q1. Before entering the Krebs cycle, pyruvate must be oxidized. Which set of events occurs during the transition (link) reaction in the mitochondrial matrix?

    • A) Production of FADH2
    • B) Formation of Citrate
    • C) Decarboxylation and reduction of NAD+
    • D) Phosphorylation of ADP

    Answer: Decarboxylation and reduction of NAD+

    Explanation: The link reaction involves decarboxylation and NADH production. Option A is incorrect because FADH2 is only produced in the Krebs cycle, not here.