Neisseria Pathogenic Species Quiz
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Questions and Answers

Which of the following species of Neisseria is known to be a rod shape?

  • Neisseria weaveri
  • Neisseria gonorrhoeae
  • Neisseria meningitidis
  • Neisseria elongata (correct)
  • Which of the following species of Neisseria is catalase negative?

  • Neisseria meningitidis
  • Neisseria bacilliformis (correct)
  • Neisseria elongata
  • Neisseria weaveri
  • In what type of environment do many Neisseria species show optimal growth?

  • Oxygen-rich environment
  • High-carbon dioxide environment (correct)
  • High-temperature environment
  • Dry environment
  • Which of the following genera is part of the family Neisseriaceae along with Neisseria?

    <p>Kingella</p> Signup and view all the answers

    Which species is always considered pathogenic and not part of the normal biota?

    <p>Neisseria gonorrhoeae</p> Signup and view all the answers

    What characteristic of Neisseria spp. contributes to their virulence by competing with the human host for iron?

    <p>Ability to bind human transferrin to specific surface receptors</p> Signup and view all the answers

    Which Neisseria species is considered a commensal in the upper respiratory tract of dogs but has been isolated from dog bites in humans?

    <p>N. weaveri</p> Signup and view all the answers

    What differentiates Lipooligosaccharide (LOS) found in pathogenic Neisseria spp. from the lipopolysaccharide in most gram-negative bacilli?

    <p>Lower-molecular-weight and loosely attached to peptidoglycan</p> Signup and view all the answers

    What is the role of pili in Neisseria spp. infections?

    <p>Inhibiting phagocytosis by neutrophils</p> Signup and view all the answers

    Which Neisseria colony types are considered virulent forms due to the presence of pili?

    <p>T1 and T2</p> Signup and view all the answers

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