Across
- 3. antibodies
- 6. the process where microorganisms are transferred into a culture medium
- 11. long lived cells
- 12. most common type of leucocyte; they engulf and digest bacteria
- 13. divide into plasma cells
- 14. y shaped proteins produced in immune response
- 17. enzymes found in tears and other secretions capable of breaking down the cell walls of bacteria
- 18. glycoproteins found on the surface of cells, toxins that stimulate the production of an antibody
- 19. free from living microorganisms
- 20. a microorganism that has been altered in someway
Down
- 1. a common non specific response to infection involing the release of histamines that causes vasodilation, heat and soreness
- 2. when a highproportion of the popiatipm is immune to a pathogen
- 4. engulf pathogens by phagocytosis
- 5. assist in both humoral and cell mediated response
- 7. grouping of cells caused by antibodies binding to the antigen of the pathogen
- 8. a cell displaying an antigen
- 9. destroy pathogens by producing chemicals
- 10. a type of RNA virus that controls the production of DNA corresponding to the viral RNA and inserts it into the host cell's DNA
- 15. make up main cellular component of immune system. Very large nucleus
- 16. signalling molecules
- 19. oily substance produced by the skin which inhibits the growth of microorganisms
