Archive for September, 2011

Block C immune system notes

Wednesday, September 21st, 2011
Alisa, Pratik and Sarita the immune system Define the term pathogen

Outline the role of the skin and mucous membranes in defence against pathogens.

Outline how phagocytic leucocytes ingest pathogens in the blood and in body tissues.

Describe the process of blood clotting.

Toni. Yurie. Sinchita. Biology Immune System Notes Outline the effects of HIV on the immune system. 

Discuss the cause, transmission and social implications of AIDS.

Bianca, Gio, Laura Define active, passive, natural and artificial immunity. 

Describe the production of monoclonal antibodies and their use in diagnosis and treatment.

Hong, Haruka, Soo Wan Antibiotics against bacteria and viruses Distinguish between antigens and antibodies. 

Explain why antibiotics are effective against bacteria but not against viruses.

Outline the principle of challenge and response, clonal selection and memory cells as the basis of immunity.

Daniel Shloka Caitlin ANTIBODY PRODUCTION Explain antibody production.
sona_yoshi_alessandra_vaccinations principles pros and cons Explain the principle of vaccination. 

Discuss the benefits and dangers of vaccination.


 

 

Block A immune system notes

Tuesday, September 20th, 2011
Rina, Ray Ruman Immune System Notes Define the term pathogen

Outline the role of the skin and mucous membranes in defence against pathogens.

Outline how phagocytic leucocytes ingest pathogens in the blood and in body tissues.

Describe the process of blood clotting.

HIV and AIDS 

 

Outline the effects of HIV on the immune system. 

Discuss the cause, transmission and social implications of AIDS.

Amber-Fergus-Aki-Immunity Define active, passive, natural and artificial immunity. 

Describe the production of monoclonal antibodies and their use in diagnosis and treatment.

immune system block A, dawoon anna alex Distinguish between antigens and antibodies. 

Explain why antibiotics are effective against bacteria but not against viruses.

Outline the principle of challenge and response, clonal selection and memory cells as the basis of immunity.

Antibody production Explain antibody production.
Explain the principle of vaccination Explain the principle of vaccination. 

Discuss the benefits and dangers of vaccination.

 

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

 

 

Gas exchange

Monday, September 12th, 2011

Do you know the difference between respirationbreathing and gas exchange?

You will, hopefully, by the end of the next topic.  Here are some resources to help you.  This one gives basic factual information.  This one is interactive.  And this one from Get Body Smart is also good.

Watch this excellent video from TEDMED where Dr Keshavjee brings a breathing lung on stage!

YouTube Preview Image

This one, about a smoking 2 year old, is much more disturbing to watch!  Again, thanks to Mr Taylor over at iBiology for finding the resource.

 

Be still my beating heart

Thursday, September 1st, 2011

maximum heart rate 214 by Laurel Fan on flickr

In class this week and next we will be working on a lab dealing with factors affecting heart rate.  Your task is simple – to designcarry out and write up your findings on how a particular factor affects heart rate.

Begin by listing all the factors you can think of that might influence how fast or slow your heart beats.  Decide on one independent variable to test, and write it in the form of a research question.  Next write a hypothesis, including justification.  Then plan an experiment to test your hypothesis, remembering to state clearly how you will control all the variables you mentioned earlier.

Then comes the fun part – performing your plan.  You may need to ask, beg, bribe some of your classmates or family members to participate.  Once you have your data, process it and present it appropriately, explain your findings, and evaluate both your results and your method.  Suggest improvements for next time.

Phew!  That should take a while…. This is a great opportunity for you to boost your IA scores and gain complete on the various aspects of lab grading.  Here is the  Design rubric DCP rubric CE rubric