ANTIMICROBIAL CHEMOTHERAPEUTIC AGENTS QUIZ

The susceptibility of a microorganism to antibiotics and other chemotherapeutic agents can be determined by using

both (a) and (b)

tube dilution technique

paper disk plate

none of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Most antibiotics are isolated from

plants

viruses

aquatic microorganisms

soil microorganisms

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Chloramphenicol

Tetracycline

Penicillin

Streptomycin

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 : ?

Fluoroquinolones are antibiotics which inhibit

DNA polymerase

Cross-linking of peptidoglycan

RNA polymerase

DNA gyrase

TRUE ANSWER : ?
YOUR ANSWER : ?

Bacterial cells susceptible to penicillium can be protected from destruction if the medium in which they are exposed is of

high surface tension

moderate osmotic pressure

high osmotic pressure

low osmotic pressure

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following group is not the carbohydrate containing antibiotic?

Vancomycin & Moenomycin

Streptomycin & Streptothricin

Everninomycin & Nogirimycin

Erythromycin & candicidin

TRUE ANSWER : ?
YOUR ANSWER : ?

The scientist who first discovered the substance penicillin was

none of these

Joseph Lister

Paul Ehrlich

Alexander Fleming

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the antibiotic is not used as a food preservative ?

Nisin

β-lactam antibiotic

Pimaricin

Tylosin

TRUE ANSWER : ?
YOUR ANSWER : ?

Novobiocin can be used against

Haemophilus

gram -ve Meningococci & Gonococci

all of these

gram +ve Staphylococci

TRUE ANSWER : ?
YOUR ANSWER : ?

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