Microbiology C13 Quiz

jngyen11's version from 2017-03-27 17:39

Section 1

Question Answer
Paul Erhlichaccomplished two of the above. ("chemotherapy" and strepomycin)
Penicillin was discovered by ____________ and was isolated by ________ . Alexander Fleming; Ernst Chain and Howard Florey
A special group of chemical substances that are used to treat diseases caused by microbes: antimicrobial agents
The mode of action of an antimicrobial agent refers tohow it exerts its effects upon microorganisms.
Polypeptide antibiotics that act as detergents and distort bacterial cellular membranes do so by: disrupting cell membrane function

Section 2

Question Answer
Side effects due to antimicrobial agents may involve all of the following except increased antibiotic susceptibility of replacement microflora
Mechanisms of bacterial resistance to antimicrobial agents include all of the following except alteration of normal microflora
Mutation of DNA that produces an altered ribosome is an example of what type of bacterial resistance mechanism? alteration of target
Which of following is not a way to limit the ability of microorganisms to acquire drug resistance? taking antibiotics until the patient feels better
Rifamicin inhibits RNA synthesis

Section 3

Question Answer
The development of second-line and third-line antimicrobial agents demonstrates the increasing difficulty of treating drug resistant bacteria
Clear area on agar that surrounds a filter paper disk on the disk diffusion tests and represents inhibited growth of a test microorganism is called: zone of inhibition
Characteristics of an ideal antimicrobial agent include all of the following except resistance by microorganisms
A decreased efficacy of an antimicrobial agent during combination therapy is called antagonism
The ideal antimicrobial agent should be soluble in body fluids

Section 4

Question Answer
Which of the antibiotics inhibit protein synthesis in susceptible bacteria? amikacin
Chloramphenicol, a bacteriostatic antimicrobial agent, is an inhibitor of: protein synthesis
Cephalosporins are not disruptors of cell membrane function
The sulfonamide antibiotics kill bacteria by disrupting folic acid metabolism
Interferons and immunoenhancers include levamisole and inosiplex