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Photosynthesis and Respiration

Photosynthesis and Respiration
In oxygenic photosynthesis, the electron donor is

NADH
NADPH
water
oxygen

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Photosynthesis and Respiration
Electron transport systems play a vital role in

Calvin cycle
photorespiration
all of these
light-dependent reactions

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

Alcohol fermentation
Oxidative phosphorylation
Glycolysis
Citric acid cycle

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Photosynthesis and Respiration
The rate of photorespiration in most plants increases at.higher temperatures. Some plants have evolved a somewhat round-about system to deal with this problem. This series of reactions is called

Photosystem II
C4 pathway
Calvin cycle
ETS (electron transfer system in light reactions

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

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

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Photosynthesis and Respiration
The end products of noncyclic photophosphorylation are

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

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