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Microbial Metabolism

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

Oak trees
Cyanobacteria
Phytoplankton
Purple sulfur bacteria

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Microbial Metabolism
Nitrogen fixation is a process that requires

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

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Microbial Metabolism
The reaction, where small precursor molecules are assembled into larger organic molecules is referred as

metabolism
anabolism
any of these
catabolism

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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.

green
red and blue
green and ultraviolet
red

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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 sulphur. At the end of 48 hours, it is expected to find the radioactive label located in

all of these
DNA
enzymes
RNA

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

Bacillus
Streptococcus
Streptomyces
Clostridium

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