Digestive system: Diarrhoea and Cholera

1) Name signs/symptoms caused by cholera.

2) State ways in which the bacterium spreads in the village.

3) What is diarrhoea?

4) How does the cholera bacterium cause diarrhoea?

5) How did the boy treated his father?

6) Name the different actions which the boy taught to the people in the village to prevent the disease.


  1. Diarrhea, vomiting and dehydration
  2. Through water, dirty hands, flies and dirty food
  3. An ​illness in which the body’s ​solid ​waste is more ​liquid than ​usual and comes out of the ​body more often
  4. It produces a toxin that attaches to the wall of the small intestine and affects the villi and makes it secrete chloride. That causes water from the blood to move into the lumen through osmosis.
  5. He purified the water and then gave him the purified water with half a teaspoon of salt and 6 teaspoons of sugar to obtain again the minerals.
  6. To wash their hands before eating and cooking and after going to the toilet, to filtrate the water, and to wash food before eating it.
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