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Microbial Metabolism

Microbial Metabolism
In an oxygenic photosynthesis, the green and the purple bacteria do not use which of the following one as an electron source?

H2
S (elemental sulphur)
H2O
H2S

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

CO2
oxygen
sulfate
nitrate

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Microbial Metabolism
The catabolic reaction, pentose-phosphate exists in

eukaryotic cells
none of these
prokaryotic and eukaryotic cells both
prokaryotic cells

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

green
infrared
blue
ultraviolet

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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

enzymes
RNA
DNA
all of these

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

anabolism
catabolism
metabolism
any of these

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