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Microbiology of Soils

Microbiology of Soils
The nitrogenase consists of

dinitrogenase reductase
none of these
both (a) and (b)
dinitrogenase

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Microbiology of Soils
The conversion of molecular nitrogen into ammonia is known as

nitrogen fixation
ammonification
denitrification
nitrification

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Microbiology of Soils
Nitrogen fixation refers to the direct conversion of atmospheric nitrogen gas into

ammonia
ATP
nitrate
glucose

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Microbiology of Soils
Bacteria, as a group, are responsible for

nitrogen fixation
all of these
sulfur oxidation
nitrogen oxidation

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Microbiology of Soils
The phenomenon of commensalism refers to a relationship between organisms in which

one species of a pair benefits
None of these
both the species of a pair benefit
one species of a pair is more benefited

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Microbiology of Soils
Which of the following is not the biofertilisers producing bacteria?

Anabaena
Nostoc
Clostridium
Both (a) and (b)

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