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Microbial Metabolism

Microbial Metabolism
Anoxygenic photosynthetic bacteria oxidize

ammonia
sulfide
water
oxgyen

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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.

red and blue
green
green and ultraviolet
red

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Microbial Metabolism
The major route for incorporation of ammonia (NH4+) into organic compounds is via

atmospheric nitrogen fixation
oxidation of pyruvate
reduction of pyruvate or alpha-ketoglutarate by enzymes
all of these

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Microbial Metabolism
In the passive diffusion, solute molecules cross the membrane as a result of

pressure difference
all of these
concentration difference
ionic difference

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

Purple sulfur bacteria
Cyanobacteria
Oak trees
Phytoplankton

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Microbial Metabolism
High energy transfer compounds are capable of

accepting large amounts of free energy
transferring large amounts of free energy
measuring free energy
None of these

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