MDCAT Biology MCQ #242

In the Calvin cycle, five molecules of G3P are rearranged into three molecules of RuBP. How much energy is consumed during this regeneration step?

MDCAT Biology MCQ #242

  1. Question 1

    Q1. In the Calvin cycle, five molecules of G3P are rearranged into three molecules of RuBP. How much energy is consumed during this regeneration step?

    • A) 3 ATP
    • B) 6 ATP
    • C) 9 ATP
    • D) 3 NADPH

    Answer: 3 ATP

    Explanation: Regeneration of 3 RuBP from 5 G3P requires 3 ATP. 6 ATP are used in the reduction phase, which is a different step.