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Summary Lipids A level Biology Year 1
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Notes from 1st year A level Biology. Achieved an A* in my final exams. Notes are based on the answers required for exam questions, based on the mark scheme requirements.
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Lipids summary notes20 September 2022 13:31
Formula- RCOOH
Functions
- Energy (2x as much energy per gram as carbohydrates)
- Waterproof layers
- Insulation (ie fatty layers around organs)
- Shock absorption
- Hormones are mostly made of lipids (ie oestrogen)
- Vitamins are dissolved in lipids
Fatty acids:
Saturated
- No carbon carbon double bonds
- Have more hydrogen atoms
- Solid at room temperature as can be packed on top of each other
- Methyl group is CH3 and h
Unsaturated
- Have carbon carbon double bonds
- Oils- liquid at room temp
- More than one double bond are polyunsaturated lipids
Triglyceride lipids
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