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MCQs

Total Questions : 55 | Page 2 of 6 pages
Question 11. . Which of the following methods would be most appropriate for sterilizing an antibiotic solution?
  1.    Dry heat sterilization
  2.    Microfiltration
  3.    Autoclaving
  4.    Desiccation
 Discuss Question
Answer: Option B. -> Microfiltration
Question 12. . When using alcohol as an antiseptic, which concentration is considered most effective?
  1.    95%
  2.    50%
  3.    70%
  4.    25%
 Discuss Question
Answer: Option C. -> 70%
Question 13. . Who developed the concept of specific toxicity?
  1.    Pasteur
  2.    Fleming
  3.    Watson
  4.    Ehrlich
 Discuss Question
Answer: Option D. -> Ehrlich
Question 14. . Fluoroquinolones are antibiotics which inhibit
  1.    DNA polymerase
  2.    RNA polymerase
  3.    DNA gyrase
  4.    Cross-linking of peptidoglycan
 Discuss Question
Answer: Option C. -> DNA gyrase
Question 15. . Which of the following is used only in life-threatening situations when no other drug is adequate?
  1.    Penicillin
  2.    Tetracycline
  3.    Chloramphenicol
  4.    Streptomycin
 Discuss Question
Answer: Option C. -> Chloramphenicol
Question 16. . Most antibiotics are isolated from
  1.    viruses
  2.    aquatic microorganisms
  3.    soil microorganisms
  4.    plants
 Discuss Question
Answer: Option C. -> soil microorganisms
Question 17. . The susceptibility of a microorganism to antibiotics and other chemotherapeutic agents can be determined by using
  1.    tube dilution technique
  2.    paper disk plate
  3.    both (a) and (b)
  4.    none of these
 Discuss Question
Answer: Option C. -> both (a) and (b)
Question 18. . The penicillin stable in gastric acid and suitable for oral administration is
  1.    methicillin
  2.    carbenicillin
  3.    closacillin
  4.    pencillin-G
 Discuss Question
Answer: Option C. -> closacillin
Question 19. . Which of the following group is not the carbohydrate containing antibiotic?
  1.    Streptomycin & Streptothricin
  2.    Vancomycin & Moenomycin
  3.    Everninomycin & Nogirimycin
  4.    Erythromycin & candicidin
 Discuss Question
Answer: Option D. -> Erythromycin & candicidin
Question 20. . More promising chemotherapeutic agents for treating viral diseases is
  1.    leukocytic interferon
  2.    fibroblast interferon
  3.    interferon
  4.    nystatin
 Discuss Question
Answer: Option C. -> interferon

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