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Microbial Metabolism

Microbial Metabolism
Entner-Doudoroff pathway is found in

aerobic eukaryotes
aerobic prokaryotes
anaerobic prokaryotes
both (a) and (b)

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

biosynthesis
anabolism
catabolism
metabolism

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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

DNA
RNA
all of these
enzymes

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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
red and blue
green and ultraviolet
green

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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

nucleic acids
cellular bicarbonate
the fatty acids
the cytoplasmic membrane

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Microbial Metabolism
When acetate is the sole source of carbon for some microorganisms, the cycle which is used, is called

glycolyic pathway
glyoxylate pathway
oxaloacetate pathway
pentose phosphate pathway

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