Chapter 6 Vocabulary

4. A disease in which the airways in the lungs narrow significantly.
7. Any substance that causes an allergy.
8. White blood cells that distinguish between different kinds of pathogens.
10. A disorder in which the immune system is overly sensitive to a foreign substance.
12. Living things too small to see with a microscope.
15. Results when antibodies are given to a person.
16. A substance that enables body cells to take glucose from the blood and use it for energy.
17. Human Immunodeficiency Virus.
18. The body's ability to destroy pathogens before they can cause disease.
20. Consists of weakened or killed pathogens that trigger the immune response. Substance used in vaccination.
21. Proteins produced by B cells that fit together with specific antigens that will be destroyed.
22. A pathogen's marker molecules that the immune system recognizes.
24. Immunization, the process by which harmless antigens are put into a person's body to produce active immunity.

1. White blood cell that engulfs pathogens and destroys them.
2. Organisms that cause disease.
3. Factors in the environment that can cause cancer.
5. Another word for poison.
6. A lymphocyte that identifies pathogens and distinguishes one pathogen from another.
9. A chemical responsible for the symptoms of an allergy.
11. Lymphocytes that produce proteins (antibodies) to help destroy pathogens.
13. Acquired Immunodeficiency Syndrome.
14. A chemical that kills bacteria or slows their growth.
19. A condition where either the pancreas produces too little insulin or body cells do not use insulin properly.
22. The body has produced antibodies that fights pathogens. Can result from vaccination or getting the disease.
23. Abnormal masses of cells.