photosystem

In photosynthesis ferredoxin is involved in electron transfer between photosystem I and the final electron acceptor, NADP.

在光合作用中，铁硫蛋白与光合系统Ⅰ和最终体NADP传递有关。

plants also derive additional ATP through cyclic photophosphorylation, in which some electrons are shunted back through the electron transport chain between photosystems Ⅱ and Ⅰ.

植物通过循环式光合酸化获得额外ATP，一些在光合系统Ⅰ和Ⅱ之传递链中回流。