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Photosynthesis In Higher Plants

Question
CBSEENBI11024912

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.