MDCAT Biology MCQ #227

A yeast cell undergoes anaerobic breakdown of one glucose molecule. What is the net gain of ATP molecules specifically during the glycolysis phase?

MDCAT Biology MCQ #227

  1. Question 1

    Q1. A yeast cell undergoes anaerobic breakdown of one glucose molecule. What is the net gain of ATP molecules specifically during the glycolysis phase?

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

    Answer: 2 ATP

    Explanation: Glycolysis nets 2 ATP because 2 are consumed and 4 are produced. Option D represents the gross yield, not the net gain.