MDCAT Biology MCQ #511

According to the chemiosmotic model, how many ATP molecules are typically generated from the oxidation of one NADH and one FADH2 respectively?

MDCAT Biology MCQ #511

  1. Question 1

    Q1. According to the chemiosmotic model, how many ATP molecules are typically generated from the oxidation of one NADH and one FADH2 respectively?

    • A) 3 and 2
    • B) 2 and 3
    • C) 4 and 2
    • D) 3 and 1

    Answer: 3 and 2

    Explanation: NADH enters at the first complex (NADH dehydrogenase), yielding 3 ATP, while FADH2 enters later at CoQ, yielding only 2 ATP.