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Photosynthesis and Respiration

Photosynthesis and Respiration
Where do the protons come from that make up the proton gradient used in the light reactions of photosynthesis?

Glucose
H2O
NADPH
ATP

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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
Dark reactions of photosynthesis
Fermentation
Carbon fixation

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Photosynthesis and Respiration
The end products of noncyclic photophosphorylation are

carbon dioxide, ATP and water
carbon dioxide, PGAL (phosphoglyceraldehyde), and H2
O2, ATP and NADPH
water, ADP and NADP+

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Photosynthesis and Respiration
Which one of the following is a product of both cyclic and noncyclic photophosphorylation?

O2
ATP
Carbohydrate
NADPH

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Photosynthesis and Respiration
As a result of the photosynthetic process, which product is formed?

Carbon dioxide
Both (a) and (b)
Oxygen
Water

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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
pyruvate to make ethanol
O2 to make new H2O
NADPH to make new glucose

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