BSCI-2520 Chapter 9: Chapter 9
16 Sep 2016
School
Department
Course
Professor
Document Summary
Properties of fatty acids depend on hydrocarbon chains. Three hydroxyl groups on glycerol connected to fatty acids by ester linkages. Provide about 6 times the metabolic energy of an equal weight of hydrated glycogen. Makes up the adipose tissue in the subcutaneous fat layer that also provides heat insulation. A side effect of hydrogenation conditions used to make commercial oils. Causes an increase in cholesterol in the body that can lead to heart disease (glycero)phospholipids. Ester linkages to fatty acids at c1 and c2. Group attached to phosphate group (x) is often polar. Lipases specific for triacylglycerols and membrane lipids catalyze their degradation in vivo. Contains an ether linkage instead of an ester linkage. Parent compound of a large group of sphingolipids. Similar in conformation and charge distribution to sphingomyelins. Lack phosphate groups and are therefore polar, but not charged. Complex carb head groups act as specific receptors for certain bacteria protein toxins.
