Difference between cyclic and non cyclic phosphorylation.

1.	Difference between cyclic and non cyclic phosphorylation.
Answer» \tCyclic PhotophosphorylationNon-Cyclic PhotophosphorylationOnly Photosystem I is involved.Both Photosystem I and II are involved.P700 is the active reaction center.P680 is the active reaction center.Electrons travel in a cyclic manner.Electrons travel in a non – cyclic manner.\xa0Electrons revert back to Photosystem IElectrons from Photosystem I are accepted by NADP.ATP molecules are produced.Both NADPH and ATP molecules are produced.Water is not required.Photolysis of water is present.NADPH is not synthesized.NADPH is synthesized.Oxygen is not evolved as the by-productOxygen is evolved as a by-product.This process is predominant only in bacteria.This process is predominant in all green plants.\t

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