Lipids (Fats & Oils) (Leaving Cert Biology): Revision Notes
📚 Revision Notes
Lipids (Fats & Oils)
Lipids are composed of:
- Carbon
- Hydrogen
- Oxygen
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The basic unit is a triglyceride.
A triglyceride consists of:
- One glycerol
- Three fatty acids You may be asked to draw a triglyceride:
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A phospholipid consists of:
- One glycerol
- Two fatty acids
- One phosphate
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Fats are solid at room temperature.
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Oils are liquid at room temperature.
Role of lipids
- Formation of cell membranes (phospholipids)
- Heat and energy
- Formation of adipose tissue beneath the skin (insulation)
- Form a protective layer around delicate organs