Biology 0610 · IGCSE · Diseases and immunity

Diseases and immunity — practice question

Cholera is an illness caused by the bacterium Vibrio cholerae, and this bacterium releases a toxin in the gut of an infected person. State the effect of this toxin?

  • AThe toxin causes loss of water from the gut into the blood.
  • BThe toxin causes loss of water from the gall bladder into the blood.
  • CThe toxin causes water to enter the gut from the blood.
  • DThe toxin causes water to enter the gall bladder from the blood.

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