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Microbial Metabolism

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
Incorporation of atmospheric N2to NH4+ occurs via the process of

nitrogen fixation
assimilatory nitrate reduction
transamination
deamination

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Microbial Metabolism
In the passive diffusion, solute molecules cross the membrane as a result of

concentration difference
ionic difference
all of these
pressure difference

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Microbial Metabolism
In order to get inorganic phosphorous into organic compounds, the phosphate ion is incorporated via

oxidative phosphorylation
substrate level phosphorylation
both (a) and (b)
DNA

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Microbial Metabolism
Entner - Doudoroff pathway is not found in

Both (a) and (b)
aerobic prokaryotes
eukaryotes
anaerobic prokaryotes

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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?

H2O
H2
S (elemental sulphur)
H2S

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