MDCAT Biology MCQ #531

During the non-cyclic electron flow, the reaction center of Photosystem II is excited by light. What is the specific designation of this center?

MDCAT Biology MCQ #531

  1. Question 1

    Q1. During the non-cyclic electron flow, the reaction center of Photosystem II is excited by light. What is the specific designation of this center?

    • A) P700
    • B) P680
    • C) P690
    • D) P710

    Answer: P680

    Explanation: Photosystem II (P680) absorbs light best at 680nm. P700 is the reaction center for Photosystem I, a common point of confusion.