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  1. NADP+ is reduced to NADPH in
    1. PS I
    2. PS II
    3. Calvin cycle
    4. Noncyclic photophosphorylation
Correct Option: D

Non cyclic photophosphorylation is not only connected with ATP synthesis but also production of NADPH. It involves two photosystems—PSI and PSII. PSII (680) receives electrons from photolysis of water and transfer it to PSI (700) to form NADPH from NADP+. The hydrogen required for reduction comes from breaking of water molecules.



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