Posts Tagged ‘defence’

Why don’t we get sick more often?

Monday, September 19th, 2011

antibodies by AJC1 on flickr

Our bodies remain healthy despite coming into contact with germs and microbes many times a day.  This is due to the fact that we have a pretty efficient defence system that protects us from disease.  See here for a presentation on this topic.  For Higher Level students, you need to go further, so here is another useful presentation.

You will be required to make notes for yourself and your classmates on some aspect of this topic.  You may choose to create a podcast, slideshow, prezi or simply a set of written notes.  Get creative!  To see your assignment, please click on the following links.

Defence groups BLOCK A

Defence groups BLOCK C

 

 

How is our immune system like a castle?

Monday, September 13th, 2010

Bodiam castle by PhillipC on flickr

Which part of our immune system represents the castle walls?  The small openings or windows?  The moat? The archers in case people get in? 

We’ll begin by talking about our first line of defence – the skin and mucous membranes.  We’ll take a look at their structure and explain how they work to prevent pathogens from entering the body.

These video clips are excellent in explaining how our skin has evolved. Evolve 1Evolve 2.  Evolve 3.

Defence against disease

Wednesday, September 23rd, 2009
antibody from bindingsitesera.com

antibody from bindingsitesera.com

Our bodies remain healthy despite coming into contact with germs and microbes many times a day.  This is due to the fact that we have a pretty efficient defence system that protects us from disease.  See here for a presentation on this topic.  For Higher Level students, you need to go further, so here is another useful presentation.

You will be required to make notes for yourself and your classmates on some aspect of this topic.  You may choose to create a podcast, slideshow, prezi or simply a set of written notes.  Get creative!  To see your assignment, please click on the following links. 

Defense groups – BLOCK B

Defense groups – BLOCK F

Defense groups – BLOCK G