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Microbial Metabolism

Microbial Metabolism
The bacteriochlorophylls used by the anoxygenic bacteria have absorbance maxima located in the_____portion(s) of the spectrum.

infrared
green
blue
ultraviolet

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Microbial Metabolism
DAHP synthetase catalyzes the condensation of

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

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Microbial Metabolism
During the carboxylation phase of the Calvin cycle, CO2 combines with

pyruvic acid
phosphoglyceraldehyde
oxaloacetic acid
ribulose 1,5 - bisphosphate

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Microbial Metabolism
Nitrogen fixation is a process that requires

an anaerobic environment
energy
both (a) and (b)
an aerobic environment

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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

all of these
enzymes
RNA
phospholipids

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

oxygen
nitrate
sulfate
CO2

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