CAS BI 107 Chapter Notes - Chapter 43: Candida Albicans, Lyme Disease, Cytotoxic T Cell
8 Nov 2016
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Document Summary
Attack from outside animals are a tasty nutrient- & vitamin-packed meal cells are packages of macromolecules animals must defend themselves against invaders (pathogens) Attack from inside cancers = abnormal body cells. 1st line: innate, non-specific barriers -wall external defense. 3rd line: true immune system specific, acquired immunity. Lysozyme enzyme digests bacterial cell walls tears, sweat. Patrolling cells & proteins attack pathogens, but don"t remember for next time leukocytes phagocytic white blood cells macrophages, neutrophils, natural killer cells complement system proteins that destroy cells inflammatory response increase in body temp. increase capillary permeability attract macrophages. Attracted by chemical signals released by damaged cells ingest pathogens digest in lysosomes. ~20 proteins circulating in blood plasma attack bacterial & fungal cells form a membrane attack complex perforate target cell cell lysis. Responds to antigens cellular name tags that could be. Surface molecules in pathogens specific toxins abnormal body cells (cancer)
