Question

Cooperation of the two photosystems of the chloroplast is required for:

Options

• ATP synthesis

• reduction of NADP⁺

• enhancement of dark reaction

• generation of protein motive force

Answer 1

reduction of NADP⁺

Explanation:

The upward electron transfer from water to NADP⁺ of the two photosystems requires the cooperation of two photosystems. The reduction of NADP⁺ is more strongly related to photosystem I, whereas the extraction of electrons from water is more closely associated with photosystem II.