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Microbial Metabolism

Microbial Metabolism
Nitrogen fixation is a process that requires

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

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

infrared
green
ultraviolet
blue

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Microbial Metabolism
Which of the following catalyze liberation of orthophosphate from organic P compounds and inorganic pyrophosphate ?

Alkaline phosphates
Protease
Hydrogenase
Oxidoreductase

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

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Microbial Metabolism
Digestive reactions where large molecules are broken down into smaller ones are referred as

biosynthesis
anabolism
metabolism
catabolism

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Microbial Metabolism
Phosphate is considered to restrict the induction of

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

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