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

all of these
phospholipids
enzymes
RNA

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Microbial Metabolism
Dolichol phosphate is

a complex lipid involved in docking vesicles with the plasma membrane
the anchor on which sugars assemble before transfer to proteins
a product of phospholipase C activation
a chaperone used in protein folding

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