BIOL130 Study Guide - Final Guide: Thrombin, Glycogen, Signal Transduction
12 Dec 2016
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Single celled organisms, (cid:858)so(cid:272)ial life(cid:859)- yeast mating. Development (from single cell to trillions of cells) Coo(cid:396)di(cid:374)ati(cid:374)g (cid:858)(cid:449)hole (cid:271)ody(cid:859) growth and development with environment. Long vs short range communication (animal cells) (a)endocrine. Extracellular signal molecules used in this way are hormones. Hormones produced in endocrine glands are secreted into bloodstream and are distributed widely throughout the body (can deliver msgs over long distances) (b)paracrine. Signal molecules diffuse locally through the extracellular fluid remaining in the neighbourhood of the cell that secretes them. Act as local mediators on nearby cells (secreted signal molecule that acts at a short range on adjacent cells) Signal molecules that regulate inflammation at the site of infection or that control cell proliferation in a healing wound function this way. Some cells respond to the local mediators that they themselves produce; paracrine communication called autocrine signalling: cancer cells sometimes promote their own survival and proliferation in this way (c)synaptic.
