| A | B |
|---|
| Infectious disease | disease that can be spread |
| Toxin | a poison that can harm an organism |
| Bacteria | unicellular organism; can be parasitic and cause disease; an important part of the food chain |
| Virus | a small, non-living piece of genetic material and protein that can invade and then reproduce inside a living cell |
| Host | a cell that is invaded by a virus other parasite |
| Parasite | an organism that lives in and harms a host cell |
| Epidemic | An outbreak of a contagious disease that spreads rapidly and widely. |
| Pandemic | An outbreak of a contagious disease that spreads throughout the world |
| Pathogen | a germ; an organism that can cause disease |
| Pasteuriz(ation)- | the process of heating food to kill any harmful organisms in it |
| Inflammatory response | the human body’s second line of defense, when phagocytes (pac-men) engulf all the pathogens they can |
| Immune response- | the human body’s third line of defense, when T-cells and B-cells kill pathogens |
| Lymphocyte | white blood cells of the immune system; T-cells and B-cells are lymphocytes |
| T-cell | the “teller cell”; they analyze the pathogen, then tell the B-cells what antibodies to make to destroy them |
| B-cell | “bomber cells”; make antibodies that kill the pathogens |
| Antigen | a protein on the outer coat of the pathogen |
| Antibody | proteins that act like handcuffs and kill pathogens |
| Antibiotic | a medicine that kills bacteria (penicillin) |
| Active immunity | when your body actively knows how to make antibodies to kill pathogens |
| Passive immunity | when you take antibiotics to kill pathogens |
| Vaccine | small bits of a destroyed pathogen that you take as medicine; Triggers your body to make ACTIVE IMMUNITY and make its own antibodies |
| Noninfectious | disease that cannot be spread |
| Cancer | a type of disease where someone’s cells grow uncontrollably |
| Diabetes | A disease where someone’s cells do not the sugar they need |
