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Photosynthesis and Respiration

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

NADPH
rubisco
O2
ATP

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

water
adenosine triphosphate (ATP)
chlorophyll pigments
carbon dioxide

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Photosynthesis and Respiration
The rate of photorespiration in most plants increases at.higher temperatures. Some plants have evolved a somewhat round-about system to deal with this problem. This series of reactions is called

Photosystem II
C4 pathway
Calvin cycle
ETS (electron transfer system in light reactions

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

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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?

H2O
ATP
Glucose
NADPH

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Photosynthesis and Respiration
A eukaryotic cell that can carry out only fermentation instead of the complete aerobic respiration of glucose

has mitochondria present
produces less CO2
is lacking in O2
all of these

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