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Microbial Metabolism

Microbial Metabolism
Nitrogen fixation is a process that requires

an aerobic environment
energy
both (a) and (b)
an anaerobic environment

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Microbial Metabolism
Which of the following is responsible for phosphate solubilization?

Streptomyces
Bacillus
Streptococcus
Clostridium

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Microbial Metabolism
The major route for incorporation of ammonia (NH4+) into organic compounds is via

oxidation of pyruvate
reduction of pyruvate or alpha-ketoglutarate by enzymes
atmospheric nitrogen fixation
all of these

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Microbial Metabolism
Which of the following catalyze liberation of orthophosphate from organic P compounds and inorganic pyrophosphate ?

Alkaline phosphates
Hydrogenase
Oxidoreductase
Protease

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Microbial Metabolism
The glyoxylate cycle is used by some microorganisms when___________ is the sole carbon source.

all of these
carbon dioxide
nitrate
acetate

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Microbial Metabolism
In an oxygenic photosynthesis, the green and the purple bacteria do not use which of the following one as an electron source?

H2
H2O
H2S
S (elemental sulphur)

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MORE MCQ ON Microbial Metabolism

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