Antimicrobial Chemotherapeutic Agents – Section 1

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

A. Erythromycin
B. Vancomycin
C. Amantadine
D. Acyclovir

Correct Answer: D. Acyclovir

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

A. Pimaricin
B. Nisin
C. Tylosin
D. β-lactam antibiotic

Correct Answer: D. β-lactam antibiotic

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

A. bacterial DNA
B. bacterial RNA
C. bacterial cell walls
D. bacterial plasma membrane

Correct Answer: C. bacterial cell walls

4. Cycloserine inhibits

A. alanine racemase
B. D-alanyl – D-alanine synthetase
C. Both (a) and (b)
D. amidase

Correct Answer: C. Both (a) and (b)

5. Which antibiotic has a beta-lactam ring?

A. Cephalosporin
B. Penicillin
C. Tetracycline
D. Streptomycin

Correct Answer: B. Penicillin

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