Which of the following is the characteristic of PS-I.

Options

A. it is active only upto 680 nm of light
B. the reaction centre of PS-I is `P_(680)`
C. PS-I is reduced by the electrons released in photolysis of water
D. PS-I in involved in non-cyclic photophos phorylation

Answer

D

Explanation

Photosystem I is located in the nonappressed part of grana thylakoids as well as stroma thylakoids. In this photosystem chlorophyll: carotenoid content is high. Its photocentre is `P_(700)`. Pigment molecules of PS I absorb at or below 700 nm wavelenth of light. It receives electrons from photosystem II. Photosystem I is involved in both cyclic and non cyclic photophosphorylation. It is not connected with photolysis of water. Usually it hands over its electron to `NADP^(+)`,