| A | B |
|---|
| phospholipids | a lipid with two fatty acids and a phosphate joined by a molecule of glycerol |
| steroids | a lipid containing four attached carbon rings |
| triglycerides | a lipid made of three fatty acids and one glycerol |
| saturated fatty acid | a fatty acid contining no carbon double bonds and the maximum number of hydrogen atoms |
| unsaturated fatty acid | a fatty acid containing double or triple bonds and less than the maximum number of hydrogen atoms |
| polyunsaturated fatty acid | a fatty acid containing many double or triple bonds |
| trans fats | an unsaturated fat that has to be changed to a saturated fat |
| lipid bilayer | two layers of phospholipids |
