| Term | Definition |
|---|
| Lipids | organic compounds that contain C, H and O but not in a fixed ratio (unlike carbohydrates) |
| Lipids | Responsible for building the structural parts of the cell membrane |
| Simple lipids | do not dissolve in water because they are non-polar |
| Lipids | larger than carbohydrates; therefore a gram of fat yields more energy than a gram of carbohydrates. |
| Lipids | Used for long-term storage of energy and carbon |
| types of lipids | fats, oils, steriods, and waxes |
| Fatty Acid | straight C chain to which H atoms are bonded. At one end of the chain there is a carboxyl group (-COOH) |
| Glycerol | 3 carbon alcohol that has three hydroxyl groups (-OH) on its molecule |
| molecule of fat | produced by the combination of 3 fatty acid molecules with 1 glycerol molecule |
| dehydration synthesis. | Each fatty acid molecule becomes attached to the glycerol molecule at one of the hydroxyl groups |
| Three molecules of water | released for each molecule of fat that is formed |
| Saturated fatty acid | fatty acids in which single bonds join the carbon atoms (EX: butter and lard, solid at room temperature) |
| monounsaturated fat | A fat that has only one double bond (unsaturated) |
| saturated fatty acids | There will be fewer H atoms because some of the bonding sites on the carbon atoms are already filled |
| Common fatty acids | have a total of 12-28 carbon atoms |
| Unsaturated Fatty Acid | fatty acids in which double bonds or even triple bonds join some of the carbon atoms (EX: corn oil and olive oil, liquids at room temperature) |
| polyunsaturated | A fat that has more than one double or triple bond |
| Phospholipids | Form the cell membrane |
| Phospholipids | have a hydrophilic end and a hydrophobic end |
| Phosphate group | polar (Hydrophillic) |
| phosphate group | replaces a fatty acid in a triglyceride molecule |
Combine with other sets
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