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MR CAMP - Topic 2
Mr Camp -Topic 2
| Term | Definition |
|---|---|
| AIDS | disease caused by HIV virus that attacks the immune system |
| allergy | when the immune system is overly sensitive to environmental substances that are normally harmless |
| antibiotics | medicine produced by microorganisms used to destroy pathogens |
| antibodies | a protein, produced by the immune system (WBC), attacks aspecific pathogen |
| antigen | marker (molecule) found on the surfaces of cells that the immune system recognizes as either part of the body ("self") or an outside invader ("non-self") |
| ATP | energy that is used by the cells of the body, comes from the chemical energy stored in food |
| bacteria | single celled organism, without a nucleus, reproduces asexually using binary fission |
| biochemical process | chemical process that occurs in living things |
| catalyst | a.k.a. enzyme, type of protein, speeds of the rate of a chemical reaction without being used up or changed during the reaction |
| disease | a condition, other than injury, that prevents the body from working properly, disruption in homeostasis |
| dynamic equilibrium | constant small corrections that normally occur to keep an organism's internal environment within the limits needed for survival |
| feedback mechanism | used to continue or stop an activity of the body EX: blood sugar levels using insulin and glucagon |
| insulin | hormone produced by pancreas, lowers blood sugar when too high due to eating a meal |
| glucagon | hormone produce by the pancreas, raise blood sugar when too low due to exercise or missing a meal |
| gas exchange | process of obtaining oxygen from the environment and releasing carbon dioxide to the environment |
| guard cells | specialized cells that control the opening and closing of stomates (pores) on the surface of a leaf to regulate water loss |
| parasite | organism that survives by living and feeding on other organisms |
| pH | measures how acidic, neutral or basic (alkaline) a substance is |
| photosynthesis | process by which producers (autotrophs) are able to capture light energy and use it to make food (glucose) from carbon dioxide and water |
| stimuli | any change in the environment that causes an organism to react |
| virus | nonliving particle of protein and genetic material that reproduces by invading the cell of a living organism |