This powerpoint presentation covers Topic 6.3 (Immune System) in the IB Biology curriculum. Each slide is labelled with the specific learning objective and animation/video links are provided in the slide notes.
The slides are formatted to print well for handouts or revision and I can provide a pdf version upon request.
As always, please let me know if you have any suggestions for improvements. These are always a work in progress!
**IB Biology Learning Objectives
6.3.1 – Define pathogen.
6.3.2 – Explain why antibiotics are effective against bacteria but not against viruses.
6.3.3 – Outline the role of skin and mucous membranes in defense against pathogens.
6.3.4 – Outline how phagocytic leucocytes ingest pathogens in the blood and in body tissues.
6.3.5 – Distinguish between antigens and antibodies.
6.3.6 – Explain antibody production
6.3.7 – Outline the effects of HIV on the immune system.
6.3.8 – Discuss the cause, transmission and social implications of AIDS.