Wednesday, 20 February 2013

Micro-Organisms

Today we're going to look at what types of microbes exist and what they do. Complete the following in your books:
  1. Rank the following in order from smallest to largest - E.coli bacterium (Bacteria), amoeba, influenza virus, hepatitis virus, carbon atom.
  2. Give two ways that microbes can help us:
  3. Give two different ways that our bodies can defend against microbes:
  4. Where do viruses need to be to reproduce?
  5. Choose one of the parasites from this page and explain what problems they cause:
  6. How is malaria transferred from person to person, and roughly how many people does it kill each year?
  7. How often can a bacterium divide to form two daughter cells?
  8. 
    MRSA bacteria seen through a miscroscope
    
  9. What is MRSA and how can spreading it be prevented?
  10. Extension - Read this article and explain how the protozoan T.gondii changes behaviour in mice.
  11. Complete this activity. How do the bacteria enter the body?