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Nitrogen Fixation and Photosynthesis

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

Oxaloacetate
Malate
Pyruvate
Alpha-ketoglutarate

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Nitrogen Fixation and Photosynthesis
In the presence of carbon monoxide, nitrogen fixation

inhibits
none of these
decreases
increases

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

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

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Nitrogen Fixation and Photosynthesis
Chlorophyll is associated with

matrix
thylakoids
stroma
cristae

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

moulds
bacteria
yeasts
roundworms

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Nitrogen Fixation and Photosynthesis
Which of the following bacteria genus is capable of oxidizing ammonia (NH4)?

Nitrosococcus
Nitrospina
Nitrobacter
Nitrosobacter

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