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Photosynthesis and Respiration

Photosynthesis and Respiration
Where do the protons come from that make up the proton gradient used in the light reactions of photosynthesis?

H2O
NADPH
ATP
Glucose

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Photosynthesis and Respiration
Assume the combined processes of photosynthesis and cellular respiration, the electrons that start as part of H2O at the beginning of the light reactions end up attaching to

pyruvate to make ethanol
O2 to make new H2O
NADPH to make new glucose
electron transport carriers to make O2

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Photosynthesis and Respiration
Electron transport systems play a vital role in

light-dependent reactions
all of these
Calvin cycle
photorespiration

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Photosynthesis and Respiration
Which of the following structures or processes are logically associated with chloroplasts?

Chlorophyll
Plant cells
All of these
Thylakoid membranes

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

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

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

Sunlight
CO2
ATP
O2

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