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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.

infrared
blue
ultraviolet
green

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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
Entner-Doudoroff pathway is found in

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

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Microbial Metabolism
Anoxygenic photosynthetic bacteria oxidize

sulfide
water
oxgyen
ammonia

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Microbial Metabolism
Phosphate regulation has been observed in the production of

all of these
antibiotics
gibberelins
alkaloids

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Microbial Metabolism
Which of the following catalyze liberation of orthophosphate from organic P compounds and inorganic pyrophosphate ?

Oxidoreductase
Alkaline phosphates
Hydrogenase
Protease

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