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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

rubisco
O2
NADPH
ATP

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

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Photosynthesis and Respiration
In oxygenic photosynthesis, water is split in order to provide the

electrons needed to reduce NADH
electrons needed for cyclic photophosphorylation
O2 needed for the dark reactions
electrons needed to reduce P680

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Photosynthesis and Respiration
Oxidative phosphorylation is to respiration as __________ is to photosynthesis

electron transport chain
reduction of NADPH
carbon fixation
light capture by chlorophyll

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Photosynthesis and Respiration
If the oxygen is labeled in CO2 and provide this CO2 to a plant, where it is expected to find this labeled oxygen after the plant had undergone photosynthesis?

In the oxygen given off by the plant
In the carbohydrate produced
In the water used
In the NADPH

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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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