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  • Question
  • Novobiocin can be used against


  • Options
  • A. gram +ve Staphylococci
  • B. gram -ve Meningococci & Gonococci
  • C. Haemophilus
  • D. all of these

  • Correct Answer
  • all of these 


  • Antimicrobial Chemotherapeutic Agents problems


    Search Results


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

    • Options
    • A. Broth dilution test
    • B. Agar dilution test
    • C. Dilution susceptibility tests
    • D. All of these
    • Discuss
    • 2. The antibiotics not having good activity against Enterobacteriaceae is

    • Options
    • A. clindamycin
    • B. cefoxitin
    • C. trimethoprim-sulphamethoxazole
    • D. ciprofloxacin
    • Discuss
    • 3. Which of the following is not ?-lactamase-resistant penicillin?

    • Options
    • A. Oxacillin
    • B. Nafcillin
    • C. Carbenicillin
    • D. Methicillin
    • Discuss
    • 4. Amphotericin B and polymyxin interfere with

    • Options
    • A. cell wall synthesis
    • B. protein synthesis
    • C. cell membrane function
    • D. DNA function
    • Discuss
    • 5. The nitrofurans differ from the antibiotics in that they

    • Options
    • A. do not occur naturally
    • B. occur naturally
    • C. are antimicrobial drugs
    • D. all of these
    • Discuss
    • 6. Which is not an amino acid and peptide antibiotic?

    • Options
    • A. Penicillin
    • B. Actinomycin
    • C. Bacitracin
    • D. Tetranactin
    • Discuss
    • 7. Both penicillin and fluoroquinolones

    • Options
    • A. bind to and inactivate a bacterial protein
    • B. inhibit the cross-linking of peptidoglycan
    • C. are inactivated by ?-lactamase
    • D. must be transported into the cytoplasm in order to act
    • Discuss
    • 8. Which of the following protein synthesis mechanisms may be affected by particular drugs?

    • Options
    • A. Peptide bond formation
    • B. mRNA translocation
    • C. Aminoacyl-tRNA binding
    • D. All of these
    • Discuss
    • 9. Which of the following may cause resistance to penicillin?

    • Options
    • A. Impermeability of cell envelope
    • B. Production of ?-lactamases by bacteria
    • C. Alteration or lack of penicillin-binding proteins
    • D. All of the above
    • Discuss
    • 10. Fluoroquinolones are antibiotics which inhibit

    • Options
    • A. DNA polymerase
    • B. RNA polymerase
    • C. DNA gyrase
    • D. Cross-linking of peptidoglycan
    • Discuss


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