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Photosynthesis and Respiration

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

NADPH
ATP
oxygen
glucose

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

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

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Photosynthesis and Respiration
What do NAD+, NADP+, and FAD+ all have in common?

They are reduced
They are oxidized
They have a full complement of electrons
They are what is used during carbon fixation in photosynthesis

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Photosynthesis and Respiration
Where does the O2 come from that is essential for the proper functioning of oxidative phosphorylation?

Light reactions of photosynthesis
Fermentation
Dark reactions of photosynthesis
Carbon fixation

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

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

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

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