Question

Cooperation of the two photosystems of the chloroplast is required for

• A. ATP synthesis
• B. reduction of $NAD{P}^{+}$
• C. cyclic photophosphorylation
• D. photo-oxidation of the reaction center of photosystem-I

Answer 1

Answer: (B)

reduction of $NAD{P}^{+}$

Non-cyclic photophosphorylation is the light-dependent part of photosynthesis in higher plants, in which an electron donor is required, and oxygen is produced as a waste product. It consists of two photo reactions cooperating, resulting in the reduction of NADP+ into NADPH ₂

_{So, the correct option is 'reduction of NADP+'.}