An electrochemical gradient across the membranes of thylakoid is required for the synthesis of by the chloroplast.
A
proteins
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B
ATP
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C
cAMP
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D
sugar
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Solution
The correct option is B ATP ATP synthesis by the chloroplast requires the development of a proton gradient across the membranes of the thylakoid. Proton gradient is generated by the cytochrome-b6-f complex. This gradient is utilised by the ATP synthase or the Fo/F1 complex to phosphorylate ADP to form ATP.