Question

give reason
1) why NADPH2 is not synthesized during cyclic Photopho ryla tion ?
2) what is plastidome?
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Answer 1

Answer:

hey mate

here's your answer

In cyclic photophosphorylation, the high energy electron released from P700 to ps1 flow down in a cyclic pathway. In cyclic electron flow, the electron begins in a pigment complex called photosystem I, passes from the primary acceptor to ferredoxin and then to plastoquinone, then to cytochrome b6f (a similar complex to that found in mitochondria), and then to plastocyanin before returning to Photosystem-1. This transport chain produces a proton-motive force, pumping H+ ions across the membrane; this produces a concentration gradient that can be used to power ATP synthase during chemiosmosis. This pathway is known as cyclic photophosphorylation, and it produces neither O2 nor NADPH. Unlike non-cyclic photophosphorylation, NADP+ does not accept the electrons; they are instead sent back to cytochrome b6f complex.

2) Plastidome is the united form of the plastids present in an eukaryotic cell.

hope it works