Immunity 0.0 / 5 ? BiologyHealth, illness and diseaseASAQA Created by: Luna HufflepuffCreated on: 19-02-18 13:15 What is an antigen? A protein which triggers an immune response within the body, when detected. 1 of 5 What are Pathogens? Organisms which cause/spread disease/illness. 2 of 5 Give three examples of Pathogens. Bacteria, Viruses and Fungi. 3 of 5 How are abnormal body cells identified? They have abnormal antigens on their surface, which are detected and acted upon by the immune system. 4 of 5 What are Toxins? They are molecules produced by pathogens which are poisonous to the host. 5 of 5
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