Immunity Biology

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Across
  1. 2. Type of white blood cell
  2. 3. Cell that engulfs invaders
  3. 4. Ignoring the body’s own cells
  4. 5. Overreaction to harmless substances
  5. 9. Redness, heat, swelling response
  6. 12. Body’s defense against disease
  7. 13. First line of defense like skin
  8. 15. Attack on self cells
  9. 17. Chemical that causes inflammation
  10. 19. Enzyme that breaks down bacteria
Down
  1. 1. Signal protein between immune cells
  2. 4. Controls and kills infected cells
  3. 6. Large phagocyte that eats pathogens
  4. 7. Protein that binds to antigens
  5. 8. Trains immune system to respond
  6. 10. Fast-responding white blood cell
  7. 11. Substance that triggers immune response
  8. 14. Disease-causing organism
  9. 16. Produces antibodies
  10. 18. Sticky substance that traps pathogens