Antimicrobial Drugs Quiz

What is the principle of antimicrobial drugs?

• To enhance the growth of bacteria

• To harm the host while treating infection

• To prevent all infections

• To destroy the infective agent without harming the host

Which of the following is a bacteriostatic drug?

• Penicillin

• Amoxicillin

• Chloramphenicol

• Vancomycin

What does 'narrow-spectrum' refer to in antimicrobial drugs?

• Effective against fungi only

• Effective against all types of bacteria

• Effective against a small range of microbes

• Effective only on viruses

Which of the following is an example of a broad-spectrum antibiotic?

• Isoniazid

• Tetracycline

• Clindamycin

• Vancomycin

What is the primary target of penicillin?

• Cell wall synthesis

• Nucleic acids

• Cell membrane

• Protein synthesis

Which mechanism do aminoglycosides use to affect bacteria?

• Inhibit protein synthesis

• Inhibit cell wall synthesis

• Disrupt cell membrane

• Block DNA replication

What is a characteristic of selectively toxic antimicrobial drugs?

• They harm the host

• They kill all cells indiscriminately

• They kill or inhibit microbial cells without harming host tissues

• They are always non-allergenic

Which of the following antibiotics disrupts cell membrane function?

• Tetracycline

• Amphotericin B

• Rifampin

• Polymyxins

What is the outcome of using rifampin on bacteria?

• Inhibition of protein synthesis

• Lysis of cells

• Stops mRNA synthesis

• Inhibition of cell wall synthesis

Which of the following antibiotics affects nucleic acid synthesis?

• Bacitracin

• Fluoroquinolones

• Tetracycline

• Streptomycin