15 DECEMBER 2021 CURRENT AFFAIRS QUIZ

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

paper disk plate

tube dilution technique

both (a) and (b)

none of these

TRUE ANSWER : ?
YOUR ANSWER : ?

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

bacterial plasma membrane

bacterial DNA

bacterial cell walls

bacterial RNA

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following antibiotics can't be used for treatment of infections with β-lactamase-producing Staphylococcus aureus?

Piperacillin

Ampicillin/sulbactam

Vancomycin

Cephalothin

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is a drug that interferes with the process of DNA production in the virus that causes genital herpes?

Amantadine

Vancomycin

Erythromycin

Acyclovir

TRUE ANSWER : ?
YOUR ANSWER : ?

Polyene antibiotics are

small ring structures

any of these

large ring structures

β-lactam - thiazolidine ring

TRUE ANSWER : ?
YOUR ANSWER : ?

Quinones and related antibiotics are

tetracyclines

mitomycin

all of these

actinorhodin

TRUE ANSWER : ?
YOUR ANSWER : ?

Both penicillin and fluoroquinolones

must be transported into the cytoplasm in order to act

bind to and inactivate a bacterial protein

are inactivated by β-lactamase

inhibit the cross-linking of peptidoglycan

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following tests is used to determine the minimal lethal concentration?

All of these

Agar dilution test

Dilution susceptibility tests

Broth dilution test

TRUE ANSWER : ?
YOUR ANSWER : ?

The antibiotics not having good activity against Enterobacteriaceae is

clindamycin

trimethoprim-sulphamethoxazole

ciprofloxacin

cefoxitin

TRUE ANSWER : ?
YOUR ANSWER : ?

Chelate forming peptide antibiotic are/is

both (a) and (b)

vancomycin

sideromycins

bleomycins

TRUE ANSWER : ?
YOUR ANSWER : ?

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