5.1 - Defence Mechanisms Flashcards
(3 cards)
1
Q
How is there a wide variety of antigens?
A
Because they are proteins which have a enormous variety and a highly specific tertiary structure
2
Q
Are lymphosites produced in responce to a infection?
A
No, they already exist - all ten million types
3
Q
Why are there not lymphosites that attack are own body cells?
A
In the fetus in the mums belly, there are no infection bc you are protected by the outside world, so all the lymphocytes will only collide with the body’s own cells so when they bump into a self cell that fits its receptor the lymphocytes will either die or be suppressed. Only ones that are left are those that fit foreign material.
