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Microbial Metabolism

Microbial Metabolism
Which of the following does not produce oxygen as a product of photosynthesis?

Oak trees
Phytoplankton
Purple sulfur bacteria
Cyanobacteria

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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° = nFlnE°
ΔG° = nFE°
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

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

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Microbial Metabolism
Phosphate is considered to restrict the induction of

none of these
primary metabolites
secondary metabolites
both (a) and (b)

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Microbial Metabolism
DAHP synthetase catalyzes the condensation of

phosphoenol pyruvate
both (a) and (b)
phenylalanine
erythrose-4-phosphate

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

ionic difference
concentration difference
pressure difference
all of these

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