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Microbial Metabolism

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

sulfate
nitrate
CO2
oxygen

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Microbial Metabolism
In order to get inorganic phosphorous into organic compounds, the phosphate ion is incorporated via

DNA
both (a) and (b)
oxidative phosphorylation
substrate level phosphorylation

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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
Most of the energy in aerobic respiration of glucose is captured by

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

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Microbial Metabolism
Assimilatory sulfate reduction involves the nucleotide __________ during the incorporation of H2S in the production of __________ .

ATP; methionine
GTP; cytosine
UTP; cytosine
ATP; cytosine

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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

enzymes
RNA
phospholipids
all of these

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