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Photosynthesis and Respiration

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

adenosine triphosphate (ATP)
water
chlorophyll pigments
carbon dioxide

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Photosynthesis and Respiration
Where does the O2 come from that is essential for the proper functioning of oxidative phosphorylation?

Light reactions of photosynthesis
Fermentation
Carbon fixation
Dark reactions of photosynthesis

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Photosynthesis and Respiration
In the Calvin cycle, carbon dioxide is fixed in a reaction with the

3-phosphoglyceric acid
ribulose diphosphate
ribose tri phosphate
ribulose phosphate

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Photosynthesis and Respiration
Which of the following serves as a reactant in photosynthesis and a product in cellular respiration?

Sunlight
ATP
CO2
O2

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Photosynthesis and Respiration
Antenna complexes, electron transport chains, and carbon fixation are all found in

plant cells
bacterial cells
animal cells
association with the reactions of the citric acid cycle

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Photosynthesis and Respiration
Electron transport systems play a vital role in

all of these
photorespiration
light-dependent reactions
Calvin cycle

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