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Triglycerides (Fatty acids (Carboxyl group (-COOH) on one end attached to…
Triglycerides
Fatty acids
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Double bonds change the shape of the hydrocarbon chain, giving it a kink, making the molecule more fluid
Functions
Energy source: Can be broken down in respiration to release energy and generate ATP by hydrolysing the ester bonds, then breaking the glycerol and fatty acids down to form carbon dioxide and water
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Insulation: Adipose tissue in whales, electrical insulator in nerve cells, hibernating animals store extra fat
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Keywords
Lipids: Soluble in alcohol rather than water. Includes triglycerides, glycoproteins, phospholipids and cholesterol
Macromolecule: Large, organic molecule
Phospholipid: Molecule consisting of a glycerol, two fatty acids and a phosphate group
Ester bond: Condensation reaction between -COOH group of a fatty acid and -OH group of a glycerol, forming a bond
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