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Microbial Metabolism

Microbial Metabolism
If ΔG of a chemical reaction has a negative value, the reaction

requires energy
releases energy
both (a) and (b)
none of these

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

oxygen
CO2
sulfate
nitrate

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Microbial Metabolism
Digestive reactions where large molecules are broken down into smaller ones are referred as

catabolism
metabolism
biosynthesis
anabolism

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Microbial Metabolism
Which of the following groups contain(s) many unique coenzymes, such as coenzyme M and coenzyme F420?

Sulfate-reducing bacteria
Methanotrophs (methane-oxidizing microbes)
Acetogens (acetigens; acetate-producing microbes)
Methanogens (methane-producing microbes)

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

infrared
green
ultraviolet
blue

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