General, Organic, and Biological Chemistry: Structures of Life (5th Edition)

Published by Pearson
ISBN 10: 0321967461
ISBN 13: 978-0-32196-746-6

Chapter 18 - Amines and Amides - Additional Questions and Problems - Page 683: 18.81

Answer

a) Beeswax is a wax. b) Cholesterol is a steroid. c) Lecithin is a glycerophospholipid. d) Glyceryl tripalmitate is a triacylglycerol. e) Sodium stearate is a soap. f) Safflower oil is a triacylglycerol.

Work Step by Step

a) A wax is a simple lipid, comprised of a long-chain alcohol and fatty acid. b) Cholesterol is a steroid that belongs to the lipid compound family of steroids. Cholesterol, which is necessary for bodily functions, is the most abundant steroid in the body. c) Lecithin is an essential fat that supports the cells in the body. It can be supplied through the consumption of foods, such as egg yolks and soybeans. d) Triacylglycerols are the simplest lipids formed by fatty acids. Triacylglycerols are characterized as being nonpolar, hydrophobic, and insoluble in water. e) Soaps are produced when fats/oils are combined with alkalies or alkalines, usually by boiling. f) Triacylglycerols are the simplest lipids formed by fatty acids. Triacylglycerols are characterized as being nonpolar, hydrophobic, and insoluble in water.
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