IGCSE Biology Pathogens and Immunity Crossword
Across
- 2. a group of pathogen; examples include malaria and amoebic dysentery
- 5. this is a method that an antibody kills a pathogen; the antibody will start off a series of reactions in the blood which produce _______ to digest the pathogen
- 8. the cell that is produced when lymphocytes clone, to provide long-term immunity
- 9. the name of the way in which the body responds to pathogens, by producing antibodies
- 10. a group of pathogen; examples include cholera and syphilis
- 14. a method in which one gains long-term immunity through injecting a weakened or dead virus into them
- 17. short-term defence against a pathogen by antibodies acquired from another individual (e.g. from mother to infant)
- 18. the type of transmission where there is no direct human to human contact
- 19. the type of white blood cell that produces antibodies to destroy pathogens
- 21. a group of pathogen; examples include influenza and AIDS
- 22. person or animal in which the pathogen lives and breeds
- 23. organisms that carries a pathogen (e.g. mosquitoes are ______ for malaria)
- 25. a group of pathogen; examples include athlete's foot and ringworm
- 26. produced by lymphocytes, fits into the antigen on the outside of the pathogen
Down
- 1. a disease causing organism
- 3. the passing of pathogen into the body
- 4. a type of chemical barrier that eliminates pathogens in one's stomach thanks to its high acidity
- 6. the type of immunity where there is defence against a pathogen by antibody production in the body (e.g. after infection)
- 7. the type of cells that produce insulin, and it is the cell that the immune system attacks when one has type 1 diabetes
- 8. the type of barrier that is a structure and makes it hard for pathogens to get past them and enter the body
- 11. the process in which one type of white blood cell 'eats' pathogen
- 12. a chemical barrier; a sticky liquid that traps pathogens
- 13. the entry of the pathogen into the body
- 15. a type of disease in which a person's own immune system attacks parts of their body
- 16. the type of transmission where there is contact between an infected person and an uninfected one through blood or other bodily fluids
- 20. the method in which lymphocytes clone
- 24. a type of mechanical barrier that sweeps out pathogens