ANTIMICROBIAL CHEMOTHERAPEUTIC AGENTS QUIZ

With which of the following aminoglycosides interfere?

Protein synthesis

DNA function

Cell wall synthesis

Cell membrane function

TRUE ANSWER : ?
YOUR ANSWER : ?

The mode of action of polymyxin is to

inhibit folic acid synthesis

inhibit protein synthesis

inhibit DNA synthesis

injury to the plasma membrane

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following may cause resistance to penicillin?

All of these

Production of β-lactamases by bacteria

Alteration or lack of penicillin-binding proteins

Impermeability of cell envelope

TRUE ANSWER : ?
YOUR ANSWER : ?

The antibiotics not having good activity against Enterobacteriaceae is

cefoxitin

ciprofloxacin

trimethoprim-sulphamethoxazole

clindamycin

TRUE ANSWER : ?
YOUR ANSWER : ?

Most antibiotics are isolated from

plants

soil microorganisms

aquatic microorganisms

viruses

TRUE ANSWER : ?
YOUR ANSWER : ?

The scientist who first discovered the substance penicillin was

Paul Ehrlich

none of these

Alexander Fleming

Joseph Lister

TRUE ANSWER : ?
YOUR ANSWER : ?

The third generation cephalosporin agents is

cephalothin

cefotaxime

cephalexin

cefoxitin

TRUE ANSWER : ?
YOUR ANSWER : ?

The most selective antibiotics are those that interfere with the synthesis of

bacterial cell walls

bacterial plasma membrane

bacterial DNA

bacterial RNA

TRUE ANSWER : ?
YOUR ANSWER : ?

Cycloserine inhibits

Both (a) and (b)

D-alanyl - D-alanine synthetase

amidase

alanine racemase

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Ampicillin

Methicillin

Rifampicin

Nalidixic acid

TRUE ANSWER : ?
YOUR ANSWER : ?

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