BIOL130 Study Guide - Midterm Guide: Monosomy, Microtubule, Exocytosis
12 Nov 2015
School
Department
Course
Professor
Document Summary
Four polar head group (phospholipids) *know the names, not the structure. Membrane doesn"t fall apart or break (elastic) not fluid where it pops. You are not alive if your membranes are not fluid low temperatures make membranes gel (no longer fluid) therefore it needs ways to become more fluid! Alter degree of saturation fully saturated straight tightly packed less fluid 3. Animal cells , cholesterol in warm blooded animals, increase cholesterol less fluid. Cold water fish have more unsaturated fatty acids to stay warm. Pond fish water changes temperature alternate fatty acids on a daily basis. Winter wheat gets planted in the fall and survives through the winter by adjusting membrane lipids. Extremophiles in hot springs (taq) danger is completely liquefying the membrane! Mammalian sperm want to be as fluid as possible when they bind to the egg so it drops its cholesterol to become more fluid. Rer transport vesicle golgi apparatus transport plasma membrane.
