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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.

green
infrared
blue
ultraviolet

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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

oxidative phosphorylation
none of these
electromotive potential
dehydrogenations

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

Streptomyces
Clostridium
Bacillus
Streptococcus

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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
phospholipids
enzymes

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Microbial Metabolism
Nitrogen fixation is a process that requires

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

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

nitrate
oxygen
sulfate
CO2

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