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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
When acetate is the sole source of carbon for some microorganisms, the cycle which is used, is called

glycolyic pathway
oxaloacetate pathway
glyoxylate pathway
pentose phosphate pathway

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Microbial Metabolism
Standard free energy change (ΔG) can be expressed as

ΔG° = R/Tlnkeq
ΔG° = -RT/lnkeq
ΔG° = RTlnkeq
ΔG° = -RTlnkeq

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Microbial Metabolism
Phosphate deregulated mutants are

none of these
highly sensitive to phosphate regulation
less sensitive to phosphate regulation
moderately sensitive to phosphate regulation

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Microbial Metabolism
The relationship between an oxidation-reduction potential difference and the standard free energy change is (where n is the number of moles of electron transferred, F= Faraday's constant and E°= standard oxidation-reduction potential difference)

ΔG° = nFE°
ΔG° = -nFE°
ΔG° = nFlnE°
ΔG° = -nFlnE°

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Microbial Metabolism
In aerobic respiration, the terminal electron acceptor is

nitrogen
oxygen
hydrogen
nitrate

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MORE MCQ ON Microbial Metabolism

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