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Photosynthesis and Respiration

Photosynthesis and Respiration
In oxygenic photosynthesis, the electron donor is

water
oxygen
NADH
NADPH

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

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

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

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

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Photosynthesis and Respiration
The breakdown of glucose occurs by the process known as

anaerobic respiration
glycolysis
fermentation
Krebs cycle

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Photosynthesis and Respiration
Assume the combined processes of photosynthesis and cellular respiration, the electrons that start as part of H2O at the beginning of the light reactions end up attaching to

NADPH to make new glucose
pyruvate to make ethanol
electron transport carriers to make O2
O2 to make new H2O

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Photosynthesis and Respiration
In noncyclic photophosphorylation, the ultimate acceptor of electrons that have been produced from the splitting of water is

carbon dioxide
NADP+
chlorophyll a
chlorophyll b

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