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MCQs

Total Questions : 204 | Page 8 of 21 pages
Question 71. Quinolones are
  1.    antimetabolites
  2.    penicillin derivatives
  3.    bacteriostatic
  4.    broad-spectrum
 Discuss Question
Answer: Option D. -> broad-spectrum
Answer: (d).broad-spectrum
Question 72. Which of the following tests is used to determine the minimal lethal concentration?
  1.    Broth dilution test
  2.    Agar dilution test
  3.    Dilution susceptibility tests
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Answer: (d).All of these
Question 73. Which of the following is not a semi synthetic chemotherapeutic agent?
  1.    Ampicillin
  2.    Carbenicillin
  3.    Penicillin
  4.    Sulfonamide
 Discuss Question
Answer: Option C. -> Penicillin
Answer: (c).Penicillin
Question 74. The mode of action of polymyxin is to
  1.    inhibit protein synthesis
  2.    inhibit DNA synthesis
  3.    injury to the plasma membrane
  4.    inhibit folic acid synthesis
 Discuss Question
Answer: Option C. -> injury to the plasma membrane
Answer: (c).injury to the plasma membrane
Question 75. Polyene antibiotics are
  1.    large ring structures
  2.    β-lactam - thiazolidine ring
  3.    small ring structures
  4.    any of these
 Discuss Question
Answer: Option A. -> large ring structures
Answer: (a).large ring structures
Question 76. 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
Answer: (c).yeast
Question 77. Which is not an amino acid and peptide antibiotic?
  1.    Penicillin
  2.    Actinomycin
  3.    Bacitracin
  4.    Tetranactin
 Discuss Question
Answer: Option D. -> Tetranactin
Answer: (d).Tetranactin
Question 78. 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
Answer: (a).high osmotic pressure
Question 79. The compound(s) which act(s) as metabolic antagonist is/are
  1.    trimethoprim
  2.    sulphonamides
  3.    both (a) and (b)
  4.    none of these
 Discuss Question
Answer: Option C. -> both (a) and (b)
Answer: (c).both (a) and (b)
Question 80. Cephalosporins and Penicillins interfere with which of the following?
  1.    Protein synthesis
  2.    DNA function
  3.    Cell membrane function
  4.    Cell wall synthesis
 Discuss Question
Answer: Option D. -> Cell wall synthesis
Answer: (d).Cell wall synthesis

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