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Photosynthesis and Respiration

Photosynthesis and Respiration
Carbon dioxide is reduced in

the Calvin cycle
noncyclic photophosphorylation
the light reactions
both light and dark reactions

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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
ETS (electron transfer system in light reactions
Calvin cycle

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

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Photosynthesis and Respiration
Rubisco (RuBP Carboxylase-oxygenase enzyme), glyceraldehyde 3-phosphate, and NADPH all play a role in

the dark reactions of photosynthesis
cellular respiration when O2 is present
alcohol fermentation
the breakdown of glucose into CO2

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

O2
NADPH
Carbohydrate
ATP

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Photosynthesis and Respiration
In oxygenic photosynthesis, the electron donor is

water
NADPH
NADH
oxygen

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