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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 Infectious disease Non-in... 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, name a specific disease and its cause.

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Answer

Infectious Disease

  • Name of disease: Malaria
  • Cause of disease: Plasmodium parasite transmitted by mosquitoes.

Non-infectious Disease

  • Name of disease: Scurvy
  • Cause of disease: Lack 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

Method 1: Filtration

  • Explanation: Filtration removes larger particles, pathogens, and impurities from the water, which helps prevent waterborne diseases by ensuring that harmful microorganisms are physically separated from the drinking water.

Method 2: Chlorination

  • Explanation: Chlorination involves adding chlorine to drinking water in order to kill most bacteria and viruses. This method effectively disinfects the water, significantly reducing the risk of infections such as cholera.

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