Biology 5090 · O Level · Diffusion and osmosis

Diffusion and osmosis — practice question

The bacterium Vibrio cholerae, which causes the disease cholera, acts on cells in the intestinal wall. It makes chloride ions move from the cells into the small intestine. Which process will then cause dangerously large amounts of watery diarrhoea to be produced?

  • Aactive transport
  • Bactive uptake
  • Cdiffusion
  • Dosmosis

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