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Across 6. Molecule on hemoglobin which binds to oxygen 7. Type of WBC with granules containing hydrogen peroxide 12. Type of motion WBCs use to move 13. Type of WBC used in both non-specific and specific immunity 19. An attraction to chemicals released by damaged cells 21. Lymphocyte providing non-specific immunity by recognized cells without the "self" proteins 22. Type of immunity which is a generalized response to an infection 23. Type of WBC which causes inflammation and attracts other WBCs 25. White blood cells 27. Type of metabolism used by erythrocytes 28. Protein located on the surface of a cell which can react with antibodies to trigger an immune response 29. Liquid portion of the blood

Down 1. Type of WBC with granules containing histimines 2. Pigment component of hemoglobin 3. Protein produced in response to an antigen 4. Red blood cells 5. Cell fragments within the blood functioning in blood clotting 8. Type of WBC which are toxic to parasitic worms 9. Leukocytes not containing large membrane-bound granules within the cytoplasm 10. Molecule on hemoglobin which binds to CO2 11. Lymphocyte providing specific immunity by attacking viruses, cancer, or transplanted tissues 14. Protein component of hemoglobin 15. Most numerous WBC, which attack and puncture bacterial and fungal cells 16. Type of WBC which takes apart dead cells and cleans up debris in the blood 17. Leukocytes containing membrane-bound granules within the cytoplasm 18. Process in which WBCs leave capillaries 20. Type of WBC with granules containing antihistimines 24. Type of immunity which targets a specific cell type 26. Lymphocyte which provides specific immunity by producing antibodies