Questions about Human Immunity (SL)

1)    Name four types of pathogen and give an example of a disease that they cause..

2)    Name four ways bacteria and viruses can move long distances (transmission).

3)    What are the five ways the skin and mucus help keep out infection?

4)    What do Lymphocytes produce and where are B-Lymphocytes made?

5)    Describe the difference between antibodies and antigens?

6)    Which cells does HIV infect ?

7)    What is the usual cause of death for a person with full blown AIDS?