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Question :Photosynthesis cannot continue for long if during light reaction, only cyclic photophosphorylation takes place. This is because:

Answer»

Only ATP is FORMED NADP`H_+`+` H_+` IS not formed
Photosystem-I stops etting excited at a wavelength of light beyond 680 nm
There is unidirectional.cyclic MOVEMENT of the electrons
There is no evolution of `O_2`

ANSWER :A


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