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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
carbon dioxide
NADP+
chlorophyll a

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

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

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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
none of these
endoplasmic reticulum
cell membrane

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

NAD+
ADP
FADH
NADP+

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Photosynthesis and Respiration
The electrons that are released by the splitting of water during photosynthesis ultimately end up in

O2
ATP
rubisco
NADPH

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