Biology 0610 · IGCSE · Osmosis

Osmosis — practice question

One sign of cholera is diarrhoea. This occurs because water is lost by osmosis due to the cholera toxin. Cholera toxins lead to

  • Asecretion of chloride ions out of the small intestine lowering the water potential.
  • Bsecretion of chloride ions out of the small intestine raising the water potential.
  • Csecretion of chloride ions into the small intestine lowering the water potential.
  • Dsecretion of chloride ions into the small intestine raising the water potential.

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