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MCQs

Total Questions : 26 | Page 1 of 3 pages
Question 1. The bacteria involved in the production of dental caries is/are
  1.    Both (a) and (b)
  2.    S sanguis
  3.    Streptococcus pyogenes
  4.    Streptococcus mutans
 Discuss Question
Answer: Option A. -> Both (a) and (b)
Question 2. Which of the following test indicates the susceptibility to streptococcal pyrogenic exotoxin?
  1.    Disk test
  2.    ASO test
  3.    Schick test
  4.    Precipitation test
 Discuss Question
Answer: Option A. -> Disk test
Question 3. Which of the following cross-reacts with cell wall carbohydrate of Streptococcus pyogenes?
  1.    Cardiac valves
  2.    Vascular intima
  3.    Synovial fluid
  4.    Myocardium
 Discuss Question
Answer: Option A. -> Cardiac valves
Question 4. Streptococcus pyogenes can be differentiated from other haemolytic Streptococci on the basis of
  1.    Aminoglycosides sensitivity
  2.    Erythromycin sensitivity
  3.    Penicillin sensitivity
  4.    Bacitracin sensitivity
 Discuss Question
Answer: Option D. -> Bacitracin sensitivity
Question 5. Which of the following condition is non-suppurative sequelae of Streptococcus pyogenes infections?
  1.    Acute rheumatic fever
  2.    All of these
  3.    Acute glomerulonephritis
  4.    Erythema nodosum
 Discuss Question
Answer: Option B. -> All of these
Question 6. Cell wall protein of Streptococcus pyogenes crossreacts with human
  1.    synovial fluid
  2.    myocardium
  3.    vascular intima
  4.    cardiac valves
 Discuss Question
Answer: Option B. -> myocardium
Question 7. Which of the following test(s) may establish retrospective diagnosis of streptococcal infection?
  1.    ASO test
  2.    Anti-DNase B test
  3.    All of these
  4.    Streptozyme test
 Discuss Question
Answer: Option C. -> All of these
Question 8. Streptolysin O is
  1.    antigenic
  2.    oxygen-labile
  3.    heat-labile
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Question 9. Individuals suffering from primary atypical pneumonia have agglutinins to
  1.    Streptococcus MG
  2.    S mutans
  3.    S avium
  4.    Enterococcus faecalis
 Discuss Question
Answer: Option A. -> Streptococcus MG
Question 10. The bacterial sore throat is caused by
  1.    Streptococcus pyogenes
  2.    Mycoplasma pneumoniae
  3.    Staphylococcus aureus
  4.    Haemophilus spp
 Discuss Question
Answer: Option A. -> Streptococcus pyogenes

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