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Science microorganisms

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  • 1. All living things are created by God.Humans, animals and plants are living things.They vary in size and can be seen with nakedeyes. However, there are tiny living things thatcan only be seen through a microscope. Theseare called microorganisms.
  • 2. There are different types of microorganisms. They are bacteria, protozoa, fungi and virus.Bacteria Protozoa Virus Fungus
  • 3. Bacteria exist in different shapes, sizes andcolours.
  • 4. Most protozoa are found mainly inponds, lakes and rivers. Some of them eat othermicroorganisms as food.
  • 5. Fungi can be found on mouldy bread, rottenfood, trees and forest floors.
  • 6. Virus is the tiniest microorganism. It can befound living in somefungi, protozoa, animals, plants and humans.
  • 7. Just like other living things,microorganismsalso undergo life process. They breathe, moveand grow.
  • 8. Yeast is an example of microorganism. It is afungus. It is used to make bread. There are airspaces in the bread. The air spaces are causedby carbon dioxide gas given out whenthe yeastacts on the dough. This shows thatmicroorganisms breath.
  • 9. What happens when you leave a bowl of ricegor a few days? It will be covered with whitepatches. The patches that you see on the riceare actually fungi. The patches become biggerafter sometime. This shows thatmicroorganisms grow.
  • 10. These microorganisms do not have legs, butthey are able to move.
  • 11.  Tapai is a popular food in Malaysia. It is made from glutinous rice or tapioca. Yeast is added to make tapai. Yeast is also added to make bread. Bacteria and fungi cause dead organisms to decay to form natural fertelizers. Some bacteria can be used to make cheese and bacteria. Fungi are used to produce antibiotics.
  • 12.  Some microorganisms that enter the body can cause illness. Eating food contanimated with microorganisms can cause food poisoning. Bacteria can acton the food remains between the teeth. This produces acid which causes tooth decay Food turns bad because of bacteria and fungi.
  • 13. Some disease can easily spread from oneperson to another. They are called contagiousdiseases. Examples are influenza, measles,mumps and chicken pox.
  • 14.  Through food and drink. Sneezing or coughing. Direct contact. Carried by mosquitoes or flies. Microorganisms can also spread through the air.
  • 15.  Wash your hands before handling food especially after using the toilet.
  • 16.  Drink water that has been boiled because boiling kills microorganisms.
  • 17.  Cover your mouth when coughing or sneezing to prevent microorganisms from spreading into the air.
  • 18.  Do not share personal items such as toothbrush, towel and comb.
  • 19.  Cover your wound to prevent it from infection.
  • 20.  Put patients with contagious diseases such as dengue fever, malaria, chicken pox, conjunctivitis or mumps into quarantine.