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Nitrogen Fixation and Photosynthesis

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

urea
nitrogen
ammonia
none of these

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

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

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Nitrogen Fixation and Photosynthesis
What type of long chain alcohol is esterified to plant chlorophyll molecules?

None of these
Phytol
Dolichol
Farnesol

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

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

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Nitrogen Fixation and Photosynthesis
Chlorophyll is associated with

matrix
cristae
stroma
thylakoids

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

yeasts
roundworms
moulds
bacteria

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