A. determine the spectrum of action of a drug B. determine which drug is most effective against a particular pathogen C. determine the amount of a drug to use against a particular pathogen D. both b and c
A. that the microbe does not grow in the presence of the agents B. that the microbe grows well in the presence of the agents C. the smallest amount of the agent that will inhibit the growth of the microbe D. the minimum amount of an agent that kills the microbe in test.
A. DNA polymerase, B. DNA gyrase, C. RNA polymerase DNA ligase.
A. tetrahydrofolic acid , B. dihydrofolic acid , C. Purine D. PABA.
A. a substrate used in the production of penicillin B. a type of belta -lactamase C. molecularly similar to cephalosporins D. used to synthesize folic acid
A. penicillins, B. cephalosporin, C. tetracyclines D. methicillin.
A. penicillins, B. gentamicin, C. tetracyclines D. streptomycin.
A. more effective, B. much cheaper; C. longer lasting, D. easier to administer
A. selective toxicity; B. structure of an antibiotic; C. Molecular size; D. the spectrum of action
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