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For each type of disease in the following table, name a specific disease and its cause - HSC - SSCE Biology - Question 22 - 2010 - Paper 1

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For each type of disease in the following table, name a specific disease and its cause. | Type of disease | Name of disease | Cause of disease | |----... show full transcript

Worked Solution & Example Answer:For each type of disease in the following table, name a specific disease and its cause - HSC - SSCE Biology - Question 22 - 2010 - Paper 1

Step 1

For each type of disease in the following table, name a specific disease and its cause.

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Answer

Type of diseaseName of diseaseCause of disease
Infectious diseaseMalariaPlasmodium
Non-infectious diseaseScurvyLack of vitamin C

Step 2

Explain how TWO different methods used to treat drinking water reduce the risk of infection.

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Answer

  1. Boiling water: Boiling is one of the most effective methods to kill microorganisms. When water is heated to its boiling point (100°C), it kills bacteria, viruses, and parasites, significantly reducing the risk of infection.

  2. Chlorination: This method involves adding chlorine or chlorine compounds to drinking water. Chlorine is a powerful disinfectant that destroys pathogens by breaking down their cell walls and disrupting their metabolism, thereby preventing infections.

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