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Nitrogen Fixation and Photosynthesis

Nitrogen Fixation and Photosynthesis
The chief source of nitrogen for green plants is

ammonium salts
nitrates
atmospheric nitrogen
low molecular weight- organic nitrogenous compound

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Nitrogen Fixation and Photosynthesis
Chlorophyll is associated with

matrix
stroma
cristae
thylakoids

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Nitrogen Fixation and Photosynthesis
Organisms capable of converting N2 to NO3 are

roundworms
moulds
yeasts
bacteria

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Nitrogen Fixation and Photosynthesis
Nitrosomonous and Nitrobacter obtain their carbon for growth from

elementary carbon
carbon dioxide
organic compounds
none of these

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Nitrogen Fixation and Photosynthesis
In the Calvin cycle of C3 plants, which molecule is the acceptor of CO2?

Ribulose-l,5-diphosphate
Alpha-ketoglutarate
Ribose-5-phosphate
Erythrose-4-phosphate

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Nitrogen Fixation and Photosynthesis
Plants absorb nitrates from soil and convert them into

nitrogen
ammonia
urea
none of these

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