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Microbial Metabolism

Microbial Metabolism
The bacteriochlorophylls used by the anoxygenic bacteria have absorbance maxima located in the_____portion(s) of the spectrum.

green
blue
infrared
ultraviolet

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Microbial Metabolism
Aerobic catabolism of glucose yields how much energy (ATP synthesized) relative to glucose fermentation?

More than 10 times as much
About the same
Twice as much
Slightly less

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Microbial Metabolism
During the reduction phase of the Calvin cycle, phosphoglyceric acid is reduced to______utilizing________as the reduction source.

phosphoglyceraldehyde; NADH+H+
pyruvic acid; NADPH+H+
phosphoglyceraldehyde; NADPH+H+
ribulose 1,5 - bisphosphate; NADH+H+

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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
oxidation of pyruvate
all of these
atmospheric nitrogen fixation

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Microbial Metabolism
In establishing proton gradient for chemiosmotic ATP generation by aerobic respiration the terminal electron acceptor is

sulfate
CO2
nitrate
oxygen

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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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