The ultimate gain of light reaction is a. only 02 b. NADPH2 O C. only ATP o d. ATP & NADPH2 Clear my choice
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Answer:
the ultimate gain of light reaction is (d) ATP and NADPH2
Explanation:
One ATP is produced as electron moves downhill through the electron transport chain between PS1 and PS2 in non-cyclic photophosphorylation. One NADPH2 is produced at the end of the Z- scheme by reduction of NADP+ by NADP reductase.
In cyclic photophosphorylation, only ATP is produced as NADP reductase is absent in the areas in which it takes place( eg. stroma lamellae).
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