Cells Organisms Micro organisms Microorganisms are very small

Cells & Organisms – Micro organisms

Microorganisms are very small living things. They can only be seen using a microscope. How many different microbes can you name?

microorganisms bacteria viruses fungi

Microbes can enter the body in many different places. eyes ears mouth nose skin cuts genitals How are the diseases caused by microbes spread?

Viruses can cause disease influenza (flu) HIV/ AIDS Common cold

Bacteria can cause disease bacteria food poisoning bacterial meningitis impetigo

Can you. . • Tell what micro organisms are • Name three different types of Micro-organisms • List three common illnesses caused by Bacteria • List three common illnesses caused by Viruses

Using microbes in Industry Bacteria grow in milk to make it ‘go off’. l This is used to make milk into yoghurt and into cheese.

Using microbes in industry yeast Yeast carries out respiration: glucose oxygen carbon dioxide This is useful for making bread and beer water energy

Uses of Micro organisms in Medicine 1. Antibiotics are made by some micro organisms and can be used to treat bacterial infections 2. Genetically altered bacteria can be used produce hormones like Insulin which we use to treat diabetes

Test yourself. . • What are Micro- organisms? • Name three different types of Microorganisms. • Describe how micro-organisms are used in industry • Describe how micro-organisms are used in medicine List three common illnesses caused by Bacteria List three common illnesses caused by Viruses