IGCSE Biology Paper-3: Specimen Questions with Answers 326 - 327 of 358

Passage

Cholera is an example of a transmissible disease.

Question 326 (1 of 7 Based on Passage)

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Cholera is transmitted in contaminated water.

State two ways water can be treated to prevent the spread of cholera.

Explanation

The cholera bacterium is usually found in water or food sources that have been contaminated by feces (poop) from a person infected with cholera. Cholera is most likely to be found and spread in places with inadequate water treatment, poor sanitation, and inadequate hygiene. The cholera bacterium may also live in the environment in brackish rivers and coastal waters.

Treatment of Waste Water

  • Drink and use safe water bottled water with unbroken seals and canned/bottled carbonated beverages are safe to drink and use.
  • Wash your hands often with soap and safe water before you eat or prepare food.
  • Use latrines or bury your fecal matter; do not defecate in any water body.

Question 327 (2 of 7 Based on Passage)

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Cholera causes diarrhea.

(ii) Outline the treatment for the symptoms of cholera.

Explanation

Signs and Symptoms Associated with Diarrhea May Include

  • Loose, watery stools
  • Abdominal cramps
  • Abdominal pain
  • Fever
  • Mucus in the stool
  • Bloating
  • Nausea
  • Urgent need to have a bowel movement

Treatment of Diarrhea

  • Loperamide (Imodium) slows the movement of food through your intestines, which lets your body absorb more liquid.
  • Bismuth subsalicylate (Kaopectate, Pepto-Bismol) balances out how fluid moves through your digestive tract.

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