MDCAT Biology MCQ #440

During the light-dependent reactions, an electron follows a non-cyclic path rather than a cyclic one. What unique product is formed during this non-cyclic flow?

MDCAT Biology MCQ #440

  1. Question 1

    Q1. During the light-dependent reactions, an electron follows a non-cyclic path rather than a cyclic one. What unique product is formed during this non-cyclic flow?

    • A) The production of oxygen through photolysis
    • B) The involvement of the Cytochrome b6-f complex
    • C) The reduction of NADP+ to NADPH at the end of the chain
    • D) The generation of a proton gradient for ATP synthesis

    Answer: The reduction of NADP+ to NADPH at the end of the chain

    Explanation: Non-cyclic flow involves both photosystems and produces NADPH, while cyclic flow only involves PS I and produces ATP exclusively.