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PHOTOSYNTHESIS AND RESPIRATION

Photosynthesis and Respiration
Which enzyme is involved in carbon-fixation reaction?

Ribulose bisphosphate carboxylase
Glycerol kinase
NADP reductase
Cytochrome reductase

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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
O2 to make new H2O
pyruvate to make ethanol
NADPH to make new glucose

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

water
carbon dioxide
chlorophyll pigments
adenosine triphosphate (ATP)

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

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Photosynthesis and Respiration
The electrons that are released by the splitting of water during photosynthesis ultimately end up in

NADPH
O2
rubisco
ATP

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