Helicobacter pylori Morphology and Identification
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Questions and Answers

What is the characteristic morphology of H. pylori?

  • Spiral-shaped gram-negative rod with multiple flagella at one pole (correct)
  • Spiral-shaped gram-positive rod with single flagellum
  • Bacillus-shaped gram-negative rod with spores
  • Spherical gram-positive cocci in pairs

    • What is the optimal pH for the growth of H. pylori?

  • pH of 6.0–7.0 (correct)
  • pH of 1.0–2.0
  • pH of 2.0–3.0
  • pH of 7.4–8.0

    • In what type of environment does H. pylori grow?

  • Aerobic environment
  • Microaerophilic environment (correct)
  • Highly acidic environment
  • Anaerobic environment

    • What enzyme does H. pylori produce that yields production of ammonia and further buffering of acid?

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

    Which media is commonly used for primary isolation of H. pylori?

    <p>Skirrow's medium with vancomycin, polymyxin B, and trimethoprim</p> Signup and view all the answers

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