MDCAT Biology MCQ #208

A researcher is comparing the redox reactions of photosynthesis and aerobic respiration. Which statement correctly identifies a feature of photosynthesis?

MDCAT Biology MCQ #208

  1. Question 1

    Q1. A researcher is comparing the redox reactions of photosynthesis and aerobic respiration. Which statement correctly identifies a feature of photosynthesis?

    • A) Oxygen is the final electron acceptor
    • B) Water is the initial electron donor
    • C) Carbon dioxide is the final electron acceptor
    • D) NADP+ is the initial electron donor

    Answer: Water is the initial electron donor

    Explanation: In photosynthesis, water is the electron donor and NADP+ is the final acceptor; in respiration, glucose is the donor and O2 is the acceptor.