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PHOTOSYNTHESIS AND RESPIRATION

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

Glycerol kinase
Ribulose bisphosphate carboxylase
Cytochrome reductase
NADP 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
pyruvate to make ethanol
NADPH to make new glucose
O2 to make new H2O

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

carbon dioxide
water
adenosine triphosphate (ATP)
chlorophyll pigments

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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
alcohol fermentation
the breakdown of glucose into CO2
the dark reactions of photosynthesis

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

rubisco
O2
NADPH
ATP

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