Lipids are naturally-occurring molecules that store energy. Fat molecules provide much more energy than sugar molecules.

Biochemistry: Lipids
Biochemistry: Lipids, Chem4kids.com, An introduction to lipids. Visit the web site to learn more.
Biomolecules - The Lipids
Biomolecules - The Lipids By Barbara Liang Wisc-Online.com "In this animated object, learners examine neutral fats, phospholipids, and cholesterol. The molecular formula and general function fo
Biomolecules: Lipids
Biomolecules: Lipids, BioCoach Activity, Pearson Education, Four pages of review on steroids, phospholipids, glycerol & glycerides, and fatty acids; one practice activity.
Fats and Lipids
Fats and Lipids, Brightstorm Science Videos, Video length: 03:20
Lipds - Science for Kids
Lipds - Science for Kids, Dr. Karen Carr, Associate Professor of History, Portland State University, A historical look at lipids and their function.
Lipids
Lipids Wikipedia.org The main biological functions of lipids include energy storage, as structural components of cell membranes, and as important signaling molecules. Visit the web site for i
Lipids - Structure in cell membranes - Video
Lipids - Structure in cell membranes, By Khan Academy, Video length: 10:10.
Lipids and Fats Review
Lipids and Fats Review, Biology Questions and Answers, Eleven question review.
The Chemistry of Biology: Lipids
The Chemistry of Biology: Lipids Infoplease.com Discussion of fats, waxes, phospholipids and steroids.
The Chemistry of Biology: Lipids
The Chemistry of Biology: Lipids FactMonster.com Article includes information on fats, waxes, phospholipids, and steroids.
The Truth about Fats and Lipids
The Truth about Fats and Lipids, Dummies.com, All-text article. Copyright 2011 & Trademark by John Wiley & Sons, Inc.
What Are Lipids Used for in the Body?
What Are Lipids Used for in the Body?, By eHow Contributing Writer, Read how lipids help with vitamin absorption, cell lubrication, energy production, messengers, and hormone production by clickin
What are Lipids?
What are Lipids? By Regina Bailey, About.com Guide August 1, 2008 Brief description of what lipids are and their function.
What Are the Types of Lipids & Their Functions?
What Are the Types of Lipids & Their Functions?, By Adam Cloe, eHow Contributing Writer, All-text article. Copyright © 1999-2011 Demand Media, Inc.
What Is a Lipid Molecule?
What Is a Lipid Molecule?, By Tami Port, Science Prof Online, Excellent website! Combination of text and illustrations. © Tami Port