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Vibrio Cholera Characteristics Quiz

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Questions and Answers

What is the shape of the Vibrio cholerae bacterium?

Comma-shaped (correct)
Straight rod
Spiral
Spherical

What is the preferred growth environment for Vibrio cholerae?

Alkaline media (correct)
Vibrio cholerae has no preference for growth media
Acidic media
Neutral media

Which of the following is a key virulence factor of Vibrio cholerae?

Catalase production
Cholera toxin (correct)
Resistance to stomach acid
Ability to form spores

How is cholera primarily transmitted?

Through contaminated water sources (C) Signup and view all the answers

What is the characteristic symptom of cholera infection?

Profuse watery diarrhea (B) Signup and view all the answers

What does the 'raft that is attached to the shore' represent in the context of Vibrio cholerae infection?

The bacterial fimbriae that attach to intestinal epithelial cells (D) Signup and view all the answers

What is the primary function of the cholera toxin produced by Vibrio cholerae?

Upregulate the production of cyclic AMP (cAMP) (D) Signup and view all the answers

What is the significance of the 'Blue Ring - Oxidase Positive' characteristic of Vibrio cholerae?

It is a diagnostic feature for identifying Vibrio cholerae on TCBS agar (A) Signup and view all the answers

What is the role of the 'TCP (Toxin Co-regulated Pilus)' in Vibrio cholerae pathogenesis?

It provides a binding site for the lysogenic bacteriophage (D) Signup and view all the answers

What does the 'River walls are mucosal wall and the water is the intestinal lumen' analogy represent?

The reservoir and site of colonization for Vibrio cholerae (B) Signup and view all the answers

What is the significance of the 'Lemon - Grows in alkaline environments, ACID LABILE - Dies with acid' characteristic of Vibrio cholerae?

It indicates the bacteria's preference for alkaline environments and sensitivity to acidic conditions (A) Signup and view all the answers

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