Photo AI
(a) Explain how TWO specific personal hygiene practices reduce the risk of infection - HSC - SSCE Biology - Question 22 - 2014 - Paper 1
Question 22
(a) Explain how TWO specific personal hygiene practices reduce the risk of infection. ................................................................................. show full transcript
Worked Solution & Example Answer:(a) Explain how TWO specific personal hygiene practices reduce the risk of infection - HSC - SSCE Biology - Question 22 - 2014 - Paper 1
Step 1
Explain how TWO specific personal hygiene practices reduce the risk of infection.
Answer
-
Washing Hands Properly: Washing hands with soap and water, especially after using the toilet, helps to remove pathogens present on the skin. This practice is crucial as it prevents the transfer of harmful microorganisms into the body, thereby reducing the risk of infections.
-
Covering Mouth when Coughing: Placing a hand over the mouth when coughing prevents the expulsion of respiratory droplets into the air. This action minimizes the spread of pathogens to others, significantly lowering the risk of respiratory infections.
Step 2
Classify this disease as either infectious or non-infectious. Justify your answer.
Answer
The disease caused by drinking water contaminated with dissolved lead is non-infectious. This classification is appropriate because the disease does not arise from a pathogen; instead, it results from the toxicity of lead, which cannot be transmitted from person to person.