Details Title: 212 Description: Immunity Total Flash Cards: 10 Created: 03/09/2007 13:32:06		New Users: To study from this flashcard set, or to create your own your own study flash cards, REGISTER HERE. Existing Users: CLICK HERE. Additional Biology Flashcards
Cards in this set: Term immunity Definition mechanisms that fight and eliminate these undesired cells Term innate immunity Definition rapid response, non-specific, react to broad range of microbes, present in sponges to humans Term acquired immunity Definition slower response, highly-specific, reacts to specific invaders and abnormal cells, presense of memory, present in vertebrates Term phagocytic cells Definition attach to prey via surface receptors that bind to structures found on many microorganisms but not normal body cells Term macrophage Definition a phagocytic cell present in many tissues that function in innate immunity by destroying microbes and in acquired immunity as an antigen-presenting cell Term LPS Definition unique to bacteria, easy signal for macrophages to detect Term lysosome Definition a membrane-enclosed sac of hydrolytic enzymes found in the cytoplams of eukaryotic cells Term antimicrobial protein Definition many types, attack or impede invadors Term complement proteins Definition float free in blood awaiting activation, once assembled, poke holes in membranes to lyse invadors Term Histamine Definition a substance released by mast cells that causes blood vessels to dilate and become more permeable during an inflammatory response