BIOL370 Study Guide - Final Guide: Electron Transport Chain, Protein Isoform, Vasodilation
12 Dec 2015
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Need to be able to cope with a changing ambient temperature. Van der waal"s forces is what holds the lipids in the membrane together. Increase temp, increase membrane fluidity, increase protein movement. Decrease temp, decrease fluidity and cause membrane to solidify. Diphenyl hexatriene is the dye that is inversely related to fluidity (anisotropy increases, fluidity decreases) Homeovsicous adaptation uses both in situ modification and de novo synthesis. In situ modification: fix whatever is wrong (lengthen, shorten, saturate, or desaturate the lipid molecule by a suite of enzymes. De novo synthesis: derive a new lipid from the diet; basically membrane remodelling by creating a new molecule. Biochemical reactions are accelerated at higher temp and reduced at lower temperatures. Expressed as the q10=ratio between reaction rates at 2 different temperatures (adjusted for a. How to maintain homeostasis: alter substrate or product concentrations since most enzymes do not function at.
