The Immune System

6. What is another name for antibodies that is a globular protein associated with the immune system?
9. What do B cells have on their surface that react directly with antigens?
10. Antigens have different regions where a B cell's receptor binds to. What are these called?
12. A second exposure of an antigen stimulates ______ cells.
15. What molecule activates through phosphorylation and triggers the signalling cascade of an activated T cell?
16. When a cell is infected by a pathogen, what do the protein fragments of the virus interact with?
18. Which immune response only involves T and B lymphocytes?

1. Spleen cells from an immunised mouse fused with myeloma cells, used for antibody production.
2. What does an active T cell present when it interacts with a B cell?
3. An attenuated virus or bacteria that triggers an immune response and memory cells.
4. Inactivation of antigens by neutralisation enhances ________.
5. What is produced in the thymus and bone marrow sites?
7. I am primarily responsible for cell-mediated immunity.
8. I am a antigen presenting cell present only in epithelial tissue.
11. Which immune response does not act specifically?
13. When a B cell receptor interacts with an antigen, this stimulates differentiation and ______.
14. I am primarily responsible for humoral immunity.
17. What do cells infected with the pathogen activate?