Biology-Unit 4

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Across
  1. 3. the process by which a cell self-destructs by producing self-destructive enzymes
  2. 6. destroys pathogens by phagocytosis and releases cytokines
  3. 10. a world wide epidemic
  4. 11. causes vasodilation and increases permeability
  5. 13. the design of vaccines, include randomisation, double blinded, placebo-controlled protocols
  6. 15. a chemical which increases the antigenic response, enhancing the immume system
  7. 17. community responsibility
  8. 18. A state period or place of isolation
  9. 19. unusually high cases in a given area
  10. 20. has two types cytotoxic T cells and helper T cells
Down
  1. 1. regular cases occurring in an area
  2. 2. chemical which attracts more phagocytes and natural killer cells
  3. 4. occurs occasionally in an area
  4. 5. a phagocyte first engulfs a pathogen, contains it in a vacuole and then lysosomes fuse with the vacuole releasing digestion enzymes which destroy it
  5. 7. destroys pathogens by apoptosis
  6. 8. makes histamine
  7. 9. individuals responsibility
  8. 12. the white blood cell involved in the specific immune response multiplies when presented with a foreign antigen which matches its receptor
  9. 14. the practice of using antiseptics to eliminate the microbes that cause disease
  10. 16. destroys by making antibodies which cause cell lysis and marks the pathogen for phagocytosis