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Photosynthesis and Respiration

Photosynthesis and Respiration
Carbon dioxide is reduced in

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

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Photosynthesis and Respiration
The cytochrome c oxidase complex

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

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Photosynthesis and Respiration
What do NAD+, NADP+, and FAD+ all have in common?

They are oxidized
They are reduced
They are what is used during carbon fixation in photosynthesis
They have a full complement of electrons

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Photosynthesis and Respiration
What process in cellular respiration is essentially the reverse of carbon fixation in photosynthesis?

Citric acid cycle
Alcohol fermentation
Glycolysis
Oxidative phosphorylation

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

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Photosynthesis and Respiration
Hydrogen (electron) acceptor in the light reactions is

ADP
NAD+
NADP+
FADH

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MORE MCQ ON Photosynthesis and Respiration

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