Plastoquinone

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Plastoquinone (oxidized form)
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Plastoquinone (oxidized form)

Plastoquinone, (often abbreviated PQ), is a quinone molecule involved in the electron transport chain in the light-dependent reactions of photosynthesis. Plastoquinone accepts two atoms of hydrogen, becoming plastoquinol. It then transports those atoms to the cytochrome b6/f protein complex.

Plastoquinol (reduced form)
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Plastoquinol (reduced form)
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