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Microbial Metabolism

Microbial Metabolism
Nitrogen fixation is a process that requires

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

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

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

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Microbial Metabolism
As the electron flow through the chains, much of their free energy is conserved in the form of ATP. This process is called

electromotive potential
dehydrogenations
oxidative phosphorylation
none of these

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

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

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Microbial Metabolism
For each glucose molecule broken down, there are______________number of reduced coenzymes to be oxidized.

4
6
12
8

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Microbial Metabolism
Entner - Doudoroff pathway is not found in

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

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MORE MCQ ON Microbial Metabolism

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