Question | Answer |
pathogen | Organisms that cause diseases. |
Immune Response | Cells react to every kind of pathogen in a different way that is specialized for that certain pathogen. |
Antibody | Chemicals produced by B-cells that lock onto antigens |
Passive Immunity | When antibodies are given to the person and the immune system does not make them, it receives assistance. |
Infectious Disease | A disease that is passed from organism to organism. |
Lymphocyte | White blood cells that create the immune response. |
Immunity | Body’s ability to destroy pathogens before they can cause diseases. |
Antibiotic | A chemical that kills bacteria and/or slows the growth without harming body cells. |
Pasteurization | A heating process that kills microorganisms in food. |
T cell | Identifies different kinds of pathogens and tells them apart. |
Active immunity | When a person’s own immune system produces antibodies in response to the presence of a pathogen. |
Allergy | A disorder from the immune system being overly sensitive to a foreign substance. |
Inflammatory response | The second line of defense; fluids and white blood cells leak into nearby tissues and attack pathogens. |
Antigen | Molecules the immune system recognizes, on cells, that distinguish it as part of the body or from the outside of the body. |
Vaccination | Harmless antigens are introduced deliberately to a person’s body to produce active immunity. |
Allergen | Substance that causes an allergy. |
Phagocyte | White blood cells that that engulfs pathogens and destroys them. |
B cell | Produce chemicals that help destroy each kind of pathogen. |
Vaccine | Consists of weak or dead pathogens that trigger immune system into action. |
Histamine | Chemicals responsible for the symptoms of an allergy. |