Question
Which of the following is the characteristic of PS-I?
It is active only upto 680 nm of light.
The reaction centre of PS- I is P680.
PS- I is reduced by the electrons released in photolysis of water.
PS-I is involved in non-cyclic photophosphorylation.
Solution
D.
PS-I is involved in non-cyclic photophosphorylation.
Photosystem- I is found in the non appressed part of grana thylakoids as well as stroma thylakoids. Chlorophyll : carotenoid content is high. Its photocenter is P700. This photosystem receives electrons from Photosystem II. It is involved in both cyclic and non- cyclic photophosphorylation.