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Microbial Metabolism

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

metabolism
biosynthesis
anabolism
catabolism

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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
atmospheric nitrogen fixation
all of these

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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
Twice as much
Slightly less
About the same

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Microbial Metabolism
Which of the following groups contain(s) many unique coenzymes, such as coenzyme M and coenzyme F420?

Sulfate-reducing bacteria
Methanogens (methane-producing microbes)
Methanotrophs (methane-oxidizing microbes)
Acetogens (acetigens; acetate-producing microbes)

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

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

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Microbial Metabolism
The acquisition energy by glucose fermentation requires

substrate-level phosphorylation
the enzyme formic-hydrogen lyase
electron transport of electrons from NADH
long-chain fatty acid oxidation

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