Where do the electrons entering photosystem ii come from?

In photosystem ║, the chlorophyll molecules releases 2 energized electrons; the electrons are placed by 2 electrons from a water molecule,forms oxygen gas (o2) and 2 hydrogen ions.

Explanation:

Photosystem ║is the protein complex in the light dependent reactions of oxygenic reactions of photosynthesis. The energized ions are replaced by oxidizing water to form hydrogen ions and molecular oxygen.

During photosystem ║, light strikes a photosynthetic pigment, the absorbed energy bounces to the chlorophyll molecules in the reaction center, it releases two energized electrons, the electrons are placed by two electrons stripped from a water molecule, forming oxygen gas(02) and 2 hydrogen ions.

The energized electrons are transferred to plastoquinone and are used to reduce NADPH are used in non- cyclic electron flow.

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