| Front | photolysis O2 and H+ |
|---|---|
| Back | O2 is waste product, protons released into thylakoids (inc conc of P+ across membrane), so when P+ moves down conc gradient, it releases energy to form ATP, and then returns to stroma, where it combines with NADP, and an e from ETC following PS1 to form reduced NADP (used in light independent reactions) - process removes H+ from stroma (maintain p+ gradient accross thylakoid) (its used in the ETC of ps1/2) |
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