Describe the role of the immune system in defence against disease
. 1. Phagocytosis - WBCs engulf and digest / destroy pathogens
2. WBCs produce / release specific antibodies in response to antigens on surface of a pathogen
● Antibodies attach / bind to antigens on the pathogen (with a complementary shape)
● Making pathogens clump together so more can be engulfed
3. WBCs produce / release specific antitoxins in response to toxins (poisons) released by bacteria
● Antitoxins neutralise / counteract toxins ● So less cell damage → don’t feel as ill