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Photosynthesis and Respiration

Photosynthesis and Respiration
In cells having organelles, the steps of the Krebs cycle and the electron transport system occur in the

none of these
mitochondria
endoplasmic reticulum
cell membrane

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Photosynthesis and Respiration
The cytochrome c oxidase complex

all of these
accepts electrons from cyt c
donates four electrons to O2
pumps protons out of the matrix space

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

methane production
sulfide oxidation
methane oxidation
photosynthesis

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Photosynthesis and Respiration
Antenna complexes, electron transport chains, and carbon fixation are all found in

animal cells
plant cells
bacterial cells
association with the reactions of the citric acid cycle

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Photosynthesis and Respiration
Carbon dioxide is reduced in

the light reactions
the Calvin cycle
noncyclic photophosphorylation
both light and dark reactions

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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?

NADPH
Glucose
ATP
H2O

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