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Photosynthesis and Respiration

Photosynthesis and Respiration
As a result of the photosynthetic process, which product is formed?

Water
Carbon dioxide
Both (a) and (b)
Oxygen

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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
Carbon fixation requires the expenditure of ATP molecules which is generated by

ETS (electron transfer system) during the light reactions
formation of glucose during the Calvin cycle
replenishment of chlorophyll
None of these

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Photosynthesis and Respiration
Which of the following structures or processes are logically associated with chloroplasts?

Thylakoid membranes
Chlorophyll
Plant cells
All of these

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Photosynthesis and Respiration
A cyclic electron transport process is the characteristic of

methane production
methane oxidation
sulfide oxidation
photosynthesis

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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

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

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