BHS 316 Exam 2 Review

5. What is it called when cells practice "self eating"?
7. What type of white blood cell leaves the blood and can become dendritic cells?
9. Where are M cells found on?
10. What is used by CTL's to drill holes in cell membranes?
11. What can clip proteins up into small protein fragments?
13. What type of cell is shaped like a star-fish?
14. What are the small protein fragments called in Class I MHC molecules?
15. What is another term for chemoattracative cytokines?
17. Type of cell death where the cell is directed to commit suicide and does not release its contents outside of the cell.
18. Type of cell death where thy dying cell releases toxic enzymes and chemicals outside to the surrounding tissues.
20. What is the outer region of the thymus called?

1. What is a crucial factor in successful organ transplants?
2. How many types of antigen presenting cells are there?
3. Where are B-cells made after birth?
4. What is the test called that is administered in the thymus to check for tolerance of self?
6. What is the process of testing T cells for MHC restriction called?
8. What is it called when a T cell can no longer perform its function, but still can recognize its cognate antigen.
12. What is the central region of the thymus called?
16. What cell organelle are class II MHC molecules loaded with peptides?
19. What are T cells that can dampen the immune response called?
20. In Co-stimulation, what does B7 bind to on the surface of a T cell?