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Home ‣ Microbiology ‣ Spirochacter and Enterobacteriaceac Comments
  • Question

  • Heat-stable enterotoxin of Escherichia coli activates


  • Options
  • A. adenylate cyclase
  • B. guanylate cyclase
  • C. both of the above
  • D. none of these

  • Correct Answer
  • guanylate cyclase 

    • Spirochacter and Enterobacteriaceac problems

    Search Results

    • 1. Primarily human pathogenic bacteria is/are ,

    • Options
    • A. Salmonella typhi
    • B. S paratyphi A
    • C. S paratyphi B
    • D. all of these
      • Discuss
    • 2. In Widal test the significant titres for H agglutinins is

    • Options
    • A. 1:50 or more
    • B. 1:100 ormore
    • C. 1:200 or more
    • D. 1:400 or more
      • Discuss
    • 3. Dysentery may be caused by

    • Options
    • A. enteropathogenic Escherichia coli
    • B. enteroinvasive E. coli
    • C. enterotoxigenic E. coli
    • D. verotoxigenic E. coli
      • Discuss
    • 4. Example of the pathogenic bacteria is/are

    • Options
    • A. L biflexa
    • B. Lparva
    • C. Leptospira interrogans
    • D. All of these
      • Discuss
    • 5. Species of Shigella which is predominant in India is

    • Options
    • A. S sonnei
    • B. S dysenteriae
    • C. S boydii
    • D. S flexneri
      • Discuss
    • 6. Heat-labile enterotoxin of Escherichia coli activates

    • Options
    • A. guanylate cyclase
    • B. adenylate cyclase
    • C. both (a) and (b)
    • D. none of these
      • Discuss
    • 7. Which of the following species/subspecies of Klebsiella produce indole?

    • Options
    • A. K pneumoniae subspecies rhinoscleromatis
    • B. K pneumoniae subspecies aerogenes
    • C. K pneumoniae subspecies pneumoniae
    • D. K oxytoca
      • Discuss
    • 8. Which of the following disease is caused by Yersinia enterocolitica in man?

    • Options
    • A. Gastroenteritis
    • B. Mesenteric lymphadenitis
    • C. Septicaemia
    • D. All of these
      • Discuss
    • 9. Enterobacter can be differentiated from Klebsiella by

    • Options
    • A. ornithine positivity
    • B. motility
    • C. both (a) and (b)
    • D. none of these
      • Discuss
    • 10. Which of the following bacteria is/are known as coliform bacilli?

    • Options
    • A. Escherichia
    • B. Klebsiella
    • C. Enterobacter
    • D. All of these
      • Discuss

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