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Photosynthesis and Respiration

Photosynthesis and Respiration
In the initial step of photosynthesis, sunlight energizes the electron pair of

water
chlorophyll pigments
adenosine triphosphate (ATP)
carbon dioxide

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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

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

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

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Photosynthesis and Respiration
NADP+ is reduced to NADPH during

light dependent reactions
none of these
photorespiration
calvin cylcle

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Photosynthesis and Respiration
Which of the following is the reduced form of a temporary electron carrier molecule?

ATP
NADP+
CO2
FADH2

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

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

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