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Photosynthesis - PSII

From what I already know, photosystem II excites electrons and then these electrons lose this energy by passing down a series of redox reactions - the electron transport chain.

Though, are these electrons naturally free within PSII or are they provided by the water splitting complex?

Thanks.


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Avatar for Lighfy
Lighfy
3
Original post by kingaaran
From what I already know, photosystem II excites electrons and then these electrons lose this energy by passing down a series of redox reactions - the electron transport chain.

Though, are these electrons naturally free within PSII or are they provided by the water splitting complex?

Thanks.


Posted from TSR Mobile


Photolysis replaces the electrons lost in PSII. A porphyrin group in PSII contains a magnesium atom which becomes exited and releases two electrons, which in turn pass down the electron transport chain.
Reply 2
Avatar for crashMATHS
crashMATHS
OP
16
Original post by Lighfy
Photolysis replaces the electrons lost in PSII. A porphyrin group in PSII contains a magnesium atom which becomes exited and releases two electrons, which in turn pass down the electron transport chain.


Thank you :biggrin:

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