MDCAT Biology MCQ #299

A plant cell experiences a depletion of NADP+ while light continues to strike the thylakoid membranes. Which pathway will the electrons follow?

MDCAT Biology MCQ #299

  1. Question 1

    Q1. A plant cell experiences a depletion of NADP+ while light continues to strike the thylakoid membranes. Which pathway will the electrons follow?

    • A) Non-cyclic photophosphorylation
    • B) Cyclic photophosphorylation
    • C) Photorespiration
    • D) Oxidative phosphorylation

    Answer: Cyclic photophosphorylation

    Explanation: When NADP+ is low, electrons cycle back to the cytochrome complex to produce only ATP. Non-cyclic flow requires NADP+.