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MCQs

Total Questions : 55 | Page 5 of 6 pages
Question 41. . Quinones and related antibiotics are
  1.    tetracyclines
  2.    actinorhodin
  3.    mitomycin
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Question 42. . The antibiotics not having good activity against Enterobacteriaceae is
  1.    clindamycin
  2.    cefoxitin
  3.    trimethoprim-sulphamethoxazole
  4.    ciprofloxacin
 Discuss Question
Answer: Option A. -> clindamycin
Question 43. . Both penicillin and fluoroquinolones
  1.    bind to and inactivate a bacterial protein
  2.    inhibit the cross-linking of peptidoglycan
  3.    are inactivated by β-lactamase
  4.    must be transported into the cytoplasm in order to act
 Discuss Question
Answer: Option A. -> bind to and inactivate a bacterial protein
Question 44. . Vancomycin inhibits peptidoglycan synthesis by binding
  1.    D-alanyl - D-alanine
  2.    alanine racemase
  3.    D-alanyl - D-alanine synthetase
  4.    amidase
 Discuss Question
Answer: Option A. -> D-alanyl - D-alanine
Question 45. . Cephalosporins and Penicillins interfere with which of the following?
  1.    Protein synthesis
  2.    DNA function
  3.    DNA function
  4.    Cell wall synthesis
 Discuss Question
Answer: Option D. -> Cell wall synthesis
Question 46. . A broad-spectrum antibiotic such as chloramphenicol is one that
  1.    kills both Gram positive and Gram negative bacteria
  2.    kills all bacteria
  3.    kills numerous types of microbes
  4.    kills all microorganisms
 Discuss Question
Answer: Option C. -> kills numerous types of microbes
Question 47. . Nystatin is a drug used for treatment of diseases caused by
  1.    gram negative bacterium
  2.    gram positive bacterium
  3.    yeast
  4.    protozoan
 Discuss Question
Answer: Option C. -> yeast
Question 48. . Which is not an amino acid and peptide antibiotic?
  1.    Penicillin
  2.    Actinomycin
  3.    Bacitracin
  4.    Tetranactin
 Discuss Question
Answer: Option C. -> Bacitracin
Question 49. . Bacterial cells susceptible to penicillium can be protected from destruction if the medium in which they are exposed is of
  1.    high osmotic pressure
  2.    low osmotic pressure
  3.    moderate osmotic pressure
  4.    high surface tension
 Discuss Question
Answer: Option A. -> high osmotic pressure
Question 50. . Which of the following is not β-lactamase-resistant penicillin?
  1.    Oxacillin
  2.    Nafcillin
  3.    Carbenicillin
  4.    Methicillin
 Discuss Question
Answer: Option C. -> Carbenicillin

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