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Photosynthesis and Respiration

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

ADP
NAD+
FADH
NADP+

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

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Photosynthesis and Respiration
The vast majority of the molecules that act as energy carriers to power cellular activities are made in

the mitochondria and chloroplasts
the nucleus
the Golgi apparatus
the cytosol

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Photosynthesis and Respiration
In the Calvin cycle, carbon dioxide is fixed in a reaction with the

ribulose phosphate
ribose tri phosphate
3-phosphoglyceric acid
ribulose diphosphate

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Photosynthesis and Respiration
The end products of noncyclic photophosphorylation are

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

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

mitochondria
cell membrane
endoplasmic reticulum
none of these

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