Physiology 3140A Study Guide - Comprehensive Final Exam Guide - Protein, Gene, Phosphorylation
20 Nov 2018
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Document Summary
Cells communicate by sending and receiving signals: can be hormones, can be neurotransmitters, can be other types of chemicals that they release. Cells can also communicate with physical things: photons of light, heat, cold, vibration, sound, these can all be considered as a form of ligand bc receptors take this and use it as a signal to release signals. Signals originate from: environment other cells enable us to stay alive. Cells respond to specific combinations of extracellular signals cell signaling contributes to: regulation of metabolic processes, cell growth, cell differentiation, cell migration, cell death (apoptosis) if cell is deprived of appropriate survival signals. Now you have a situation where you have more inputs. So with all these diff hormones and other signals coming in, it may stimulate the cell to grow and divide for example. Or you may get different ones (ex: f and g coming in too) which can lead to differentiation of the cell.
