The Immune System

3. Serine proteases that trigger programmed cell death.
5. Phagocytic cell that consumes pathogens and cancer cells and stimulates other immune cells.
6. bind to receptors on helper T cells stimulating rapid cell division (mitosis).
7. Globular protein associated with immune system
9. When to B and T cells responses occur relative to each other?
10. A B-cell is the involved in what type of specific immune response?
11. If a stem cell matures in the thymus, what type of lymphocyte will develop?
12. What protects from infection and is produced when attenuated virus/bacteria triggers an immune response and memory cell production?
14. A type of immunity that immediately (or within a few hours) responds to a pathogen's appearance in the body.
16. A Y-shaped protein that binds to antigen and triggers the production of antibodies.
17. On what round of exposures to antigens will memory cells be stimulated to produce plasma cells and cytotoxic T-cells?

1. What type of cells secrete antibodies that bind to antigens making them easier targets for phagocytes?
2. cytokines and this are both proteins produced by B-cells that regulate antigen activity.
4. Fusing spleen cells from an immunised mouse with tumour cells.
8. Blocks viral binding sites and coats bacterial toxins on pathogens.
13. What is on the surface of B-cells that interacts with antigens and stimulates mitosis?
15. What is another name for cytotoxic cells?