University:
Glendale Community College
Course:
CHM152 | General Chemistry II
Academic year:

2021
Views:

257

Pages:

2
Author:

Yael Buckley

Chapter 11 Lipids and Membranes Overview n Lipids occur in nature ¨ Substances that dissolve in non-polar solvents n n n Egg yolks, human nervous system Component of plant, animal, microbial membranes Functions: ¨ ¨ ¨ ¨ Energy storage – fats & oils Structural - cell membranes Chemical signals, vitamins, pigments Protection - waterproofing From McKee and McKee, Biochemistry, 5th Edition, © 2011 Oxford University Press Lipids and Membranes • Classified on basis of common solubility properties • soluble in organic solvents - diethyl ether, chloroform, methylene chloride, and acetone • Amphipathic – polar head, non-polar tail • Open Chain forms • fatty acids, triacylglycerols, sphingolipids, phosphoacylglycerols, glycolipids, • lipid-soluble vitamins • prostaglandins, leukotrienes, and thromboxanes • Cyclic forms • cholesterol, steroid hormones, and bile acids