BHS 316 Week 7 Exam Review

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Across
  1. 5. a protein that can bind to cell membranes and 'drill' holes in them.
  2. 7. what ligand do CTLs have that are shown on their surface that kill by plugging into its binding partner
  3. 9. cells are ____ positive when T cells stop displaying either CD4 or CD8 co-receptor molecules
  4. 11. ______ selection is necessary for T cells to recognize self antigen on MHCs and to make sure self peptides are deleted.
  5. 14. a survival tool when cells have limited materials and enclose portions of their cytoplasm in membranes to fuse with lysosomes
Down
  1. 1. cell death as a result of a wound or killed by attacking a virus or bacterium
  2. 2. programmed cell death, destruction of target cell's DNA
  3. 3. _____ selection is the process of testing T cels for MHC restriction
  4. 4. the transcription factor that drives expression of many tissue-specific antigens
  5. 6. T cells ____,sniff,stop,ext to leave the blood and enter inflamed issues
  6. 8. _____-inducted cell death is a way of eliminating obsolete T cells after they have been re-stimulated many times in the course of a battle
  7. 10. _____ helper T cells can stay in the blood and lymphatic circulation and travel from node to node, helping B cells or killer T cells
  8. 12. where do T cells learn self tolerance?
  9. 13. the state of non-functionality, useful for T cells to travel to other tissues and try to recognize self antigens