ANTIMICROBIAL CHEMOTHERAPEUTIC AGENTS QUIZ

Which of the following drugs may show plasmid-mediated resistance?

Nalidixic acid

Methicillin

Rifampicin

Ampicillin

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following methods would be most appropriate for sterilizing an antibiotic solution?

Microfiltration

Autoclaving

Desiccation

Dry heat sterilization

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following may cause resistance to penicillin?

Alteration or lack of penicillin-binding proteins

Production of β-lactamases by bacteria

All of these

Impermeability of cell envelope

TRUE ANSWER : ?
YOUR ANSWER : ?

Fluoroquinolones are antibiotics which inhibit

Cross-linking of peptidoglycan

DNA gyrase

RNA polymerase

DNA polymerase

TRUE ANSWER : ?
YOUR ANSWER : ?

The antibiotics which affords a broad spectrum of antimicrobial coverage against aerobic and anaerobic bacteria, rickettsiae, chlamydiae, and mycoplasmas is

tetracycline

metronidazole

gentamicin

vancomycin

TRUE ANSWER : ?
YOUR ANSWER : ?

When using alcohol as an antiseptic, which concentration is considered most effective?

25%

95%

70%

50%

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is used only in life-threatening situations when no other drug is adequate?

Chloramphenicol

Penicillin

Tetracycline

Streptomycin

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following protein synthesis mechanisms may be affected by particular drugs?

All of these

Aminoacyl-tRNA binding

mRNA translocation

Peptide bond formation

TRUE ANSWER : ?
YOUR ANSWER : ?

The mode of action of polymyxin is to

inhibit DNA synthesis

injury to the plasma membrane

inhibit folic acid synthesis

inhibit protein synthesis

TRUE ANSWER : ?
YOUR ANSWER : ?

The compound(s) which act(s) as metabolic antagonist is/are

none of these

sulphonamides

both (a) and (b)

trimethoprim

TRUE ANSWER : ?
YOUR ANSWER : ?

↑