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Home Microbiology Streptococcus Comments

  • Question
  • The bacteria involved in the production of dental caries is/are


  • Options
  • A. Streptococcus mutans
  • B. S sanguis
  • C. Both (a) and (b)
  • D. Streptococcus pyogenes

  • Correct Answer
  • Both (a) and (b) 


  • Streptococcus problems


    Search Results


    • 1. Which of the following test(s) may establish retrospective diagnosis of streptococcal infection?

    • Options
    • A. Anti-DNase B test
    • B. ASO test
    • C. Streptozyme test
    • D. All of these
    • Discuss
    • 2. Which of the following condition is non-suppurative sequelae of Streptococcus pyogenes infections?

    • Options
    • A. Acute rheumatic fever
    • B. Acute glomerulonephritis
    • C. Erythema nodosum
    • D. All of these
    • Discuss
    • 3. Cell wall protein of Streptococcus pyogenes crossreacts with human

    • Options
    • A. synovial fluid
    • B. cardiac valves
    • C. myocardium
    • D. vascular intima
    • Discuss
    • 4. Streptolysin O is

    • Options
    • A. antigenic
    • B. oxygen-labile
    • C. heat-labile
    • D. all of these
    • Discuss
    • 5. The bacterial sore throat is caused by

    • Options
    • A. Staphylococcus aureus
    • B. Haemophilus spp
    • C. Streptococcus pyogenes
    • D. Mycoplasma pneumoniae
    • Discuss
    • 6. Which of the following test indicates the susceptibility to streptococcal pyrogenic exotoxin?

    • Options
    • A. Schick test
    • B. Disk test
    • C. ASO test
    • D. Precipitation test
    • Discuss
    • 7. Streptococcus pyogenes can be differentiated from other haemolytic Streptococci on the basis of

    • Options
    • A. Bacitracin sensitivity
    • B. Erythromycin sensitivity
    • C. Aminoglycosides sensitivity
    • D. Penicillin sensitivity
    • Discuss
    • 8. Crystal violet blood agar is a selective medium for

    • Options
    • A. ?-haemolytic streptococci
    • B. Staphylococcus aureus
    • C. Corynebacterium diphtheriae
    • D. Mycobacterium tuberculosis
    • Discuss
    • 9. Reddening of meat in cooked meat broth is produced by

    • Options
    • A. C tetani
    • B. C histolyticum
    • C. Clostridium perfringens
    • D. C sporogenes
    • Discuss
    • 10. Typical drumstick appearance of bacilli is generally seen in

    • Options
    • A. C perfringens
    • B. C botulinum
    • C. C tetani
    • D. C histolyticum
    • Discuss


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