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Question

is an important reducing agent produced as a byproduct of photosynthesis.

A
NAD
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B
NADP
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C
NADH
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D
NADPH
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Solution

The correct option is D NADPH
Electrons in the reaction centre of PSII gets excited on recieving radiations of the wavelength 700 nm. These electrons get excited and are transferred to the sulphur-iron moiety of a ferredoxin molecule. Ferredoxin is associated with the enzyme ferredoxin - NADP reductase, which catalyses the transfer of the electrons to NADP to form NADPH and protons. NADPH is an important reducing agent required for many cellular biochemical reactions.

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