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Photosynthesis and Respiration

Photosynthesis and Respiration
In noncyclic photophosphorylation, the ultimate acceptor of electrons that have been produced from the splitting of water is

chlorophyll b
chlorophyll a
carbon dioxide
NADP+

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Photosynthesis and Respiration
The cytochrome c oxidase complex

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

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Photosynthesis and Respiration
During the light-dependent reactions of photosynthesis, which of the following does not occur?

Splitting of water
Release of oxygen
Absorption of light energy by photosystems
Carbon dioxide fixation

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Photosynthesis and Respiration
Which of the following serves as a reactant in photosynthesis and a product in cellular respiration?

Sunlight
ATP
CO2
O2

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Photosynthesis and Respiration
Rubisco (RuBP Carboxylase-oxygenase enzyme), glyceraldehyde 3-phosphate, and NADPH all play a role in

the dark reactions of photosynthesis
the breakdown of glucose into CO2
alcohol fermentation
cellular respiration when O2 is present

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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 water used
In the NADPH
In the carbohydrate produced

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