MDCAT Biology MCQ #375

In which phase of the Calvin cycle are ATP and NADPH utilized to convert 3-phosphoglycerate into glyceraldehyde-3-phosphate?

MDCAT Biology MCQ #375

  1. Question 1

    Q1. In which phase of the Calvin cycle are ATP and NADPH utilized to convert 3-phosphoglycerate into glyceraldehyde-3-phosphate?

    • A) Reduction
    • B) Regeneration
    • C) Carbon fixation
    • D) Oxidation

    Answer: Reduction

    Explanation: Reduction uses ATP and NADPH to convert 3-PGA into G3P. Carbon fixation (Option C) is the initial CO2 attachment step.