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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
CO2
oxygen
nitrate

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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

phospholipids
RNA
all of these
enzymes

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Microbial Metabolism
DAHP synthetase catalyzes the condensation of

phosphoenol pyruvate
phenylalanine
both (a) and (b)
erythrose-4-phosphate

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Microbial Metabolism
The chlorophyll molecules used by eucaryotes and cyanobacteria absorb radiant energy in the____________portion(s) of the visible spectrum.

red
green and ultraviolet
red and blue
green

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Microbial Metabolism
Free energy change (ΔG) of a reaction is referred as the amount of energy

none of these
liberated during reaction
taken up during reaction
liberated or taken up during reaction

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Microbial Metabolism
Which of the following is responsible for phosphate solubilization?

Streptococcus
Streptomyces
Bacillus
Clostridium

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