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Photosynthesis and Respiration

Photosynthesis and Respiration
Hydrogen (electron) acceptor in the light reactions is

NAD+
FADH
ADP
NADP+

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Photosynthesis and Respiration
In oxygenic photosynthesis, water is split in order to provide the

electrons needed for cyclic photophosphorylation
O2 needed for the dark reactions
electrons needed to reduce P680
electrons needed to reduce NADH

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Photosynthesis and Respiration
What is the maximum absorption wavelength for photosystem I in green plants?

600 nm
750 nm
700 nm
550 nm

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Photosynthesis and Respiration
The followings are the products of the light reactions of photosynthesis except

oxygen
NADPH
ATP
glucose

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Photosynthesis and Respiration
Carbon fixation requires the expenditure of ATP molecules which is generated by

None of these
formation of glucose during the Calvin cycle
replenishment of chlorophyll
ETS (electron transfer system) during the light reactions

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Photosynthesis and Respiration
The manufacture of ATP in both photosynthesis and respiration is made possible by

All of these
the existence of a proton gradient across specific membranes
the action of ATP synthase
energy from the movement of electrons

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