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Microbial Metabolism

Microbial Metabolism
Which of the following does not produce oxygen as a product of photosynthesis?

Cyanobacteria
Oak trees
Purple sulfur bacteria
Phytoplankton

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

ultraviolet
infrared
blue
green

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Microbial Metabolism
If radioactive bicarbonate was supplied to bacterial cells, which were actively synthesizing fatty acids, it is expected to find the bulk of the radioactivity in

the fatty acids
cellular bicarbonate
the cytoplasmic membrane
nucleic acids

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

assimilatory nitrate reduction
deamination
transamination
nitrogen fixation

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Microbial Metabolism
Entner - Doudoroff pathway is not found in

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

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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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