When light energy excites electrons in photosystem where do the electrons to replace them come from

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asked May 4, 2017 84.5k views

1 Answer

Mathias Dolidon · Answer 1 · 2017-05-09T23:44:33+0000

Light excites the electrons in chlorophyll a molecules of photosystem 1. As these electrons move to another primary electron receptor, electrons from photosystem 2 replace them.
Therefore the answer is FROM PHOTOSYSTEM 2.

When light energy excites electrons in photosystem where do the electrons to replace them come from

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