Asked in UHS MDCAT 2016 2016

Photosystem I have chlorophyll, a group of molecules that absorb maximum light of:

Correct answer: C. 700 nm

  • A. 680 nm
  • B. 780 nm
  • C. 700 nm
  • D. 580 nm

Explanation

There are two photosystems: PSI and PSII. These are named in order of their discovery. Photosystem I has chlorophyll, a molecule that absorbs the maximum light at 700nm. Whereas PSII absorbs the maximum light at 680nm.

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