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Microbial Metabolism

Microbial Metabolism
Which of the following(s) is/are the products of the light reactions of photosynthesis?

ATP, NADPH, and O2
ATP and O2 only
ATP only
NADPH only

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Microbial Metabolism
Incorporation of atmospheric N2to NH4+ occurs via the process of

assimilatory nitrate reduction
nitrogen fixation
deamination
transamination

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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

oxidative phosphorylation
dehydrogenations
electromotive potential
none of these

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Microbial Metabolism
High energy transfer compounds are capable of

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

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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
If ΔG of a chemical reaction is positive in value and keq is less than 1 then the chemical reaction will

proceed in reverse direction
none of these
proceeed in forward direction
not take place in any of the direction

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