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Microbial Metabolism

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

Clostridium
Streptomyces
Bacillus
Streptococcus

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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
atmospheric nitrogen fixation
oxidation of pyruvate
all of these

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Microbial Metabolism
High energy transfer compounds are capable of

None of these
transferring large amounts of free energy
accepting large amounts of free energy
measuring free energy

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

oxaloacetate pathway
glyoxylate pathway
pentose phosphate pathway
glycolyic pathway

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Microbial Metabolism
If radioactive bicarbonate was supplied to bacterial cells, which were actively synthesizing fatty acids, it is expected to find the bulk of the radioactivity in

nucleic acids
cellular bicarbonate
the cytoplasmic membrane
the fatty acids

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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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