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Photosynthesis and Respiration

Photosynthesis and Respiration
NADP+ is reduced to NADPH during

light dependent reactions
calvin cylcle
photorespiration
none of these

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Photosynthesis and Respiration
In the initial step of photosynthesis, sunlight energizes the electron pair of

adenosine triphosphate (ATP)
chlorophyll pigments
water
carbon dioxide

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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

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

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

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

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Photosynthesis and Respiration
The manufacture of ATP in both photosynthesis and respiration is made possible by

energy from the movement of electrons
the action of ATP synthase
All of these
the existence of a proton gradient across specific membranes

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Photosynthesis and Respiration
Which of the following is the reduced form of a temporary electron carrier molecule?

FADH2
ATP
CO2
NADP+

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