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Microbial Metabolism

Microbial Metabolism
Standard free energy change (ΔG) can be expressed as

ΔG° = R/Tlnkeq
ΔG° = -RTlnkeq
ΔG° = -RT/lnkeq
ΔG° = RTlnkeq

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

transamination
deamination
nitrogen fixation
assimilatory nitrate reduction

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

anabolism
biosynthesis
catabolism
metabolism

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Microbial Metabolism
The role of bacteriophyll in an oxygenic photosynthesis is to

transfer electrons to an intermediate in the sulfide oxidation pathway
reduce NADP directly
use light energy to energize an electron
reduce ferridoxin directly

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Microbial Metabolism
Radioisotopes are frequently used in the study of cells. Assume a culture of E. coli is grown in a culture medium containing radioactive sulphur. At the end of 48 hours, it is expected to find the radioactive label located in

DNA
enzymes
all of these
RNA

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