MDCAT Biology MCQ #478

In the Z-scheme of photosynthesis, which specific reaction center chlorophyll molecule is excited to initiate the flow in Photosystem I?

MDCAT Biology MCQ #478

  1. Question 1

    Q1. In the Z-scheme of photosynthesis, which specific reaction center chlorophyll molecule is excited to initiate the flow in Photosystem I?

    • A) P700
    • B) P680
    • C) Pheophytin
    • D) Plastoquinone

    Answer: P700

    Explanation: P700 is the reaction center for PSI; P680 belongs to PSII, which initiates the non-cyclic flow.