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Microbial Metabolism

Microbial Metabolism
In aerobic respiration, the terminal electron acceptor is

nitrogen
nitrate
hydrogen
oxygen

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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 cytoplasmic membrane
the fatty acids
cellular bicarbonate
nucleic acids

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

Oak trees
Purple sulfur bacteria
Cyanobacteria
Phytoplankton

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Microbial Metabolism
Phosphate regulation has been observed in the production of

all of these
alkaloids
gibberelins
antibiotics

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Microbial Metabolism
The role of bacteriophyll in an oxygenic photosynthesis is to

transfer electrons to an intermediate in the sulfide oxidation pathway
reduce ferridoxin directly
reduce NADP directly
use light energy to energize an electron

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

deamination
nitrogen fixation
assimilatory nitrate reduction
transamination

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