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MCQs

Total Questions : 204 | Page 2 of 21 pages
Question 11. The antibiotics not having good activity against Enterobacteriaceae is
  1.    clindamycin
  2.    cefoxitin
  3.    trimethoprim-sulphamethoxazole
  4.    ciprofloxacin
 Discuss Question
Answer: Option A. -> clindamycin
Answer: (a).clindamycin
Question 12. Quinones and related antibiotics are
  1.    tetracyclines
  2.    actinorhodin
  3.    mitomycin
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Answer: (d).all of these
Question 13. 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
Answer: (c).kills numerous types of microbes
Question 14. 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
Answer: (a).D-alanyl - D-alanine
Question 15. 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
Answer: (a).bind to and inactivate a bacterial protein
Question 16. 'filters' that are commonly used, known as
  1.    Nitrocellulose
  2.    Filtration tubes
  3.    Sieves
  4.    Filter paper
 Discuss Question
Answer: Option A. -> Nitrocellulose
Answer: (a).Nitrocellulose
Question 17. Removal and killing of all microorganisms is known as
  1.    Destruction
  2.    Sterilization
  3.    Pasteurization
  4.    Removal
 Discuss Question
Answer: Option B. -> Sterilization
Answer: (b).Sterilization
Question 18. During 'pasteurization' milk is heated for 30 minutes at
  1.    67°C
  2.    63°C
  3.    62°C
  4.    61°C
 Discuss Question
Answer: Option D. -> 61°C
Answer: (d).61°C
Question 19. Sterilization is done by autoclave, consisting exposure to stream, about
  1.    120°C
  2.    170°C
  3.    121°C
  4.    116°C
 Discuss Question
Answer: Option C. -> 121°C
Answer: (c).121°C
Question 20. Time duration for 'pasteurization' is
  1.    30 minutes
  2.    20 minutes
  3.    15 minutes
  4.    11 minutes
 Discuss Question
Answer: Option A. -> 30 minutes
Answer: (a).30 minutes

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