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Photosynthesis and Respiration

Photosynthesis and Respiration
In oxygenic photosynthesis, the electron donor is

water
NADH
NADPH
oxygen

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

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Photosynthesis and Respiration
During the light-dependent reactions of photosynthesis, which of the following does not occur?

Absorption of light energy by photosystems
Splitting of water
Carbon dioxide fixation
Release of oxygen

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

anaerobic respiration
Krebs cycle
fermentation
glycolysis

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

NADPH
ATP
H2O
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

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

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