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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?

NADPH
H2O
ATP
Glucose

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Photosynthesis and Respiration
NADP+ is reduced to NADPH during

calvin cylcle
none of these
light dependent reactions
photorespiration

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Photosynthesis and Respiration
What process in cellular respiration is essentially the reverse of carbon fixation in photosynthesis?

Alcohol fermentation
Glycolysis
Oxidative phosphorylation
Citric acid cycle

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Photosynthesis and Respiration
More ATP is manufactured during __________ than at any other time in all of cellular metabolism.

glycolysis
fermentation
oxidative phosphorylation
the light reactions of photosynthesis

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Photosynthesis and Respiration
During the light-dependent reactions of photosynthesis, which of the following does not occur?

Release of oxygen
Splitting of water
Absorption of light energy by photosystems
Carbon dioxide fixation

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Photosynthesis and Respiration
A eukaryotic cell that can carry out only fermentation instead of the complete aerobic respiration of glucose

has mitochondria present
produces less CO2
all of these
is lacking in O2

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