structure and function of lipids
- Created by: Marie Moore
- Created on: 13-12-12 19:30
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- lipids
- fatty acids
- long hydrocarbon chains
- acid group at the end
- if hydrocarbon chain contains double bond it is unsaturated
- make fats melt more easily
- single bonds - saturated with hydrogen. solid/fat
- triglycerides
- consist of a glycerol molecule
- condensation reaction to 3 fatty acids
- ether bonds are formed
- hydrolysis reaction releases molecules again
- excellent energy reserves - more carbon hydrogen bonds than Carb.
- protection of internal organs
- a thermal insulating layer
- phospholipids
- consists of a glycerol molecule, two fatty acids molecules and a phosphate group.
- phosphate makes glycerol end to be polarised (hydrophilic)
- hydrocarbon chains - non polar (hydrophobic)
- fatty acids
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