Which statement about virulent strains of Vibrio cholerae is not true?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Prepare for the Clinical Laboratory Science Bacteriology Test. Engage with multiple choice questions and flashcards with helpful hints and explanations. Ace your exam confidently!

Multiple Choice

Which statement about virulent strains of Vibrio cholerae is not true?

Explanation:
Vibrio cholerae virulence hinges on motility, adhesion, mucus penetration, and toxin production. Virulent strains are motile because they possess a single polar flagellum that lets the bacteria swim through the intestinal mucus toward the epithelium. Saying they are nonmotile contradicts this key feature, so that statement is not true. In addition, these bacteria adhere to enterocytes via structures like the toxin-coregulated pilus to establish colonization, produce enzymes such as mucinase to help penetrate the mucus layer, and are toxigenic, producing cholera toxin that drives the large-volume watery diarrhea characteristic of infection.

Vibrio cholerae virulence hinges on motility, adhesion, mucus penetration, and toxin production. Virulent strains are motile because they possess a single polar flagellum that lets the bacteria swim through the intestinal mucus toward the epithelium. Saying they are nonmotile contradicts this key feature, so that statement is not true. In addition, these bacteria adhere to enterocytes via structures like the toxin-coregulated pilus to establish colonization, produce enzymes such as mucinase to help penetrate the mucus layer, and are toxigenic, producing cholera toxin that drives the large-volume watery diarrhea characteristic of infection.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy