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Microbial Metabolism

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

ultraviolet
green
infrared
blue

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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
pentose phosphate pathway
oxaloacetate pathway
glyoxylate pathway

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Microbial Metabolism
Free energy change (ΔG) of a reaction is referred as the amount of energy

none of these
liberated or taken up during reaction
taken up during reaction
liberated during reaction

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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

cellular bicarbonate
the fatty acids
the cytoplasmic membrane
nucleic acids

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

enzymes
phospholipids
all of these
RNA

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Microbial Metabolism
Most of the energy in aerobic respiration of glucose is captured by

substrate-level phosphorylation
long-chain fatty acid oxidation
electron transport of electrons from NADH
the enzyme formic-hydrogen lyase

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