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Nitrogen Fixation and Photosynthesis

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

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

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Nitrogen Fixation and Photosynthesis
Chlorophyll is associated with

thylakoids
matrix
stroma
cristae

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Nitrogen Fixation and Photosynthesis
Which of the following molecule is produced from the fixation of CO2 in C4 plants?

Oxaloacetate
Malate
Alpha-ketoglutarate
Pyruvate

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Nitrogen Fixation and Photosynthesis
What is the metal ligand in chlorophylls?

Copper (Cu)
Manganese (Mn)
Iron (Fe)
Magnesium (Mg)

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

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

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

roundworms
moulds
yeasts
bacteria

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