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Photosynthesis and Respiration

Photosynthesis and Respiration
Which one of the following is a product of both cyclic and noncyclic photophosphorylation?

Carbohydrate
O2
ATP
NADPH

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Photosynthesis and Respiration
The end products of noncyclic photophosphorylation are

carbon dioxide, PGAL (phosphoglyceraldehyde), and H2
carbon dioxide, ATP and water
water, ADP and NADP+
O2, ATP and NADPH

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

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Photosynthesis and Respiration
Where does the O2 come from that is essential for the proper functioning of oxidative phosphorylation?

Light reactions of photosynthesis
Carbon fixation
Dark reactions of photosynthesis
Fermentation

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Photosynthesis and Respiration
What is the maximum absorption wavelength for photosystem I in green plants?

750 nm
600 nm
700 nm
550 nm

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Photosynthesis and Respiration
The manufacture of ATP in both photosynthesis and respiration is made possible by

All of these
the existence of a proton gradient across specific membranes
energy from the movement of electrons
the action of ATP synthase

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