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Photosynthesis and Respiration

Photosynthesis and Respiration
Electron transport systems play a vital role in

photorespiration
Calvin cycle
light-dependent reactions
all of these

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Photosynthesis and Respiration
If the oxygen is labeled in CO2 and provide this CO2 to a plant, where it is expected to find this labeled oxygen after the plant had undergone photosynthesis?

In the oxygen given off by the plant
In the NADPH
In the carbohydrate produced
In the water used

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Photosynthesis and Respiration
The end products of noncyclic photophosphorylation are

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

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Photosynthesis and Respiration
The breakdown of glucose occurs by the process known as

Krebs cycle
glycolysis
fermentation
anaerobic respiration

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

fermentation
the light reactions of photosynthesis
oxidative phosphorylation
glycolysis

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Photosynthesis and Respiration
The cytochrome c oxidase complex

donates four electrons to O2
accepts electrons from cyt c
all of these
pumps protons out of the matrix space

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