Tips:
1. Command words : EXPLAIN HOW and SUGGEST
2.Total Marks 10
3. It is 6 + 4
Suggested Answer:
Disease such as cholera can be transmitted through contaminated food and water. Microorganisms such as bacteria or virus will attached to the dirty hands of the infected person when they touch the food.
Disease such as AIDS can be transmitted by direct contact with an infected person. This is through sexual contact with infected person. Disease like ringworm can be infected by using personal things of infected person. [ 2 marks allocated from this paragraph]
Vectors such as flies and cochroaches can transmit microorganism/pathogen from faeces or contaminated food while mosquito inject the infected person when it bites the body of another person and it pass the microorganisms [ 2 marks allocated from this para ]
Airborne diseases like TB is transmitted via liquid droplets which contains pathogen and enter to the other persons body via respiratory system. The liquid droplets produced when a person sneezes, cough or spit. [ 2 marks allocated from this para ]
In order to control the spread of diseases: the use of antibiotics may kill and inhibit the growth of the pathogen.
The use of vaccine to stimulate the body to produce antibody to built up the body immune system.
The use of antiseptics on wounds or cuts can kill or inhibit growth of microorganism and the use of disinfectant can inhibit the growth of microorganisms on floors, furnitures and rooms.
[ 4 marks allocated for suggestions ]
No comments:
Post a Comment