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Microbial Metabolism

Microbial Metabolism
Digestive reactions where large molecules are broken down into smaller ones are referred as

catabolism
metabolism
anabolism
biosynthesis

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

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Microbial Metabolism
Free energy change (ΔG) of a reaction is referred as the amount of energy

taken up during reaction
liberated during reaction
none of these
liberated or taken up during reaction

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Microbial Metabolism
Nitrogen fixation is a process that requires

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

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

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

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

all of these
concentration difference
pressure difference
ionic difference

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