Gonococcal Structure and Antigenic Variation
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Questions and Answers

What is the basis for the multiple serotypes of Neisseria gonorrhoeae?

  • Difference in protein I and protein II
  • Presence of a polysaccharide capsule
  • Variation in outer membrane protein III
  • Antigenicity of its pilus protein (correct)
  • What is the function of Protein II in Neisseria gonorrhoeae?

  • Production of the polysaccharide capsule
  • Attachment of the organism to cells (correct)
  • Variation in antigenicity
  • Regulation of chromosomal rearrangement
  • How many serotypes of Neisseria gonorrhoeae are known?

  • Less than 10
  • Over 50
  • More than 100 (correct)
  • Only 1
  • What is responsible for the antigenic variation in the gonococcal pili?

    <p>Chromosomal rearrangement</p> Signup and view all the answers

    Which of the following is NOT a characteristic of Neisseria gonorrhoeae?

    <p>Ability to produce a biofilm</p> Signup and view all the answers

    Study Notes

    Neisseria Gonorrhoeae (Gonococcus)

    • Lacks a polysaccharide capsule
    • Has multiple serotypes based on the antigenicity of its pilus protein
    • Antigenic variation in gonococcal pili occurs due to chromosomal rearrangement
    • There are over 100 known serotypes
    • Has three outer membrane proteins: proteins I, II, and III
    • Protein II plays a role in attachment of the organism to cells
    • Protein II varies antigenically

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    Description

    This quiz covers the characteristics of Neisseria gonorrhoeae, including its pilus protein, outer membrane proteins, and antigenic variation. Learn about the structure and properties of this bacterium.

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