Unit 4 Revision Crossword

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Across
  1. 2. type of immunity obtained through vaccinating a high percentage of the surrounding population
  2. 3. method where diseases are transmitted by organisms
  3. 5. the process by which a cell self-destructs by producing self-destructive enzymes
  4. 6. method of obtaining immunity by being exposed to a live pathogen and becomes immune
  5. 8. first line barrier of defence against bacteria and viruses
  6. 10. where a phagocyte engulfs the pathogen, contains it within a vacuole then lisosomes fuse with the vacuole, releasing digestive enzymes which destroy the pathogen
  7. 12. chemical which attracts more phagocytes and natural killer cells to the site of infection
  8. 14. destroys by making antibodies which cause cell lysis and marks the pathogen for phagocytosis
  9. 16. the chemical in a vaccine which enhances the bodies antigenic response, enhancing the immune system
Down
  1. 1. type of cells that secrete cytokines which activate B cells to secrete antibodies and macrophages to destroy ingested microbes
  2. 4. the isolation of an individual to prevent spread of a disease to other members of a population
  3. 5. a substance which inhibits the growth and development of microorganisms without necessarily killing them
  4. 7. type of variation where pathogens change their antigens avoiding detection by the host's immune system
  5. 9. white blood cell involved in specific immune response
  6. 11. unusually high cases of a disease in an area in a short period
  7. 13. regular cases of a disease occurring in an area
  8. 15. causes vasodilation and increased capillary permeability