Lipids are water insoluble organic compound which can be extracted from the cells of organic solvent. Lipids are formed by condensation reaction between fatty acid and glycerol (alcohol) contain hydrocyl group (OH).
Lipids occur into two from of fat and oil, fat are solid at room temperature and oil are liquid at room temperature. Fat and oil contain carbon, hydrogen and oxygen but has much smaller proportion of oxygen than that of carbohydrates.
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