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Microbial Metabolism

Microbial Metabolism
Anoxygenic photosynthetic bacteria oxidize

water
oxgyen
sulfide
ammonia

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Microbial Metabolism
As the electron flow through the chains, much of their free energy is conserved in the form of ATP. This process is called

none of these
oxidative phosphorylation
dehydrogenations
electromotive potential

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Microbial Metabolism
Entner-Doudoroff pathway is found in

aerobic prokaryotes
aerobic eukaryotes
anaerobic prokaryotes
both (a) and (b)

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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 phosphorous. At the end of 48 hours, it is expected to find the radioactive label located in

RNA
all of these
enzymes
phospholipids

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

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

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

transamination
nitrogen fixation
deamination
assimilatory nitrate reduction

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