Lipids
- Created by: Camilla :)
- Created on: 10-04-14 21:12
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1. Triglycerides
- Made up of one molecule of glycerol and three molecules of fatty acids attached
- Fatty acid molecules have long tails made of hydrocarbons
- Hydrophobic tails - lipids insoluble in water
- All fatty aicds - same basic structure but tail varies
2. Phospholipids
- Found in cell membranes
- Similar to triglycerides but one fatty acod molecule is replaced by a phosphate group
- Phosphate group ionised (electrically charged) - attracted to water molecules
- The phosphate is hydrophillic, but the rest is hydrophobic
3. Cholesterol
- Often found in cell membranes
- Also used to make steroids
- Has a hydrocarbon ring structure attached to a hydrocarbon tail
- Hydrocarbon ring…
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