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BIO 12-MOD1/1.2C
Lesson 1.2C Vocabulary Words
| Term | Definition |
|---|---|
| lipids | include steroids, such as the sex hormones and cholesterol, fats and oils, which act as energy storage molecules in organisms, ______ are unable to dissolve in water because they are neutral (non-polar) |
| neutral fats | another term for triglycerides (fats and oils) but the neutral means the molecule is non-polar or neutral |
| phospholipids | are a class of lipids that are a major component of all cell membranes as they can form lipid bilayers. |
| saturated fatty acids | solid at room temperature (e.g., lard and butter); they have the maximum number of hydrogens on the fatty acid chains |
| steroids | has a backbone of four fused carbon rings, each one differing primarily by the functional group attached to it, and by the arrangements if the rings; hormones such as estrogen, aldosterone, and testosterone are steroids |
| triglycerides | triglycerides are made of one glycerol and three fatty acid molecules; the fatty acids are long chains of carbon atoms with hydrogen atoms attached, and end with the acidic group COOH |
| unsaturated fatty acids | liquids at room temperature (e.g., olive and peanut oils); these molecules have double bonds between any two carbon atoms that have less than two hydrogens attached to them |
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