5.3 T-lymphocytes and cell-mediated immunity Flashcards
1
Q
What is antigen?
A
A molecule that triggers an immune response by lymphocytes.
2
Q
What are lymphocytes?
A
White blood cells that are responsible for the immune response. They become activated in the presence of antigens.
3
Q
What are the 2 types of lymphocytes?
A
- T lymphocytes
- B lymphocytes
4
Q
What are the characteristics of T lymphocytes?
A
- mature in thymus gland
- associated with cell-mediated immunity
5
Q
What will T lymphocytes only respond to?
A
Antigens that are presented on a body cell (rather than antigens within body fluids) .
6
Q
What is the response called when T lymphocytes only respond to antigens that are presented on a body cell?
A
Cell-mediated immunity / cellular response
7
Q
A
