At what wavelength (in nm) does the chlorophyll a in Photosystem I absorb the most light?

Biology Mcqs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

PPSCFPSCNTSPakistan govt jobs
Subject
Biology Mcqsbiology-mcqs
Published
23 May 2018
Last updated
28 May 2026

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Explanation

Chlorophyll a in Photosystem I has its peak light absorption at 700 nm, which is why this wavelength is critical for its role in photosynthesis.

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