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Lipids - Coggle Diagram
Lipids
about lipids
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lipids have x2 the energy of carbohydrates weight for weight - so its energy dense - good for storing energy
Fatty acids
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cause triglycerides have hydrocarbon tails with an even charge they're non-polar, consequently don't mix freely with water
Cholesterol
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excess cholesterol tends to be discreeted in bile - if too much in bile will crystallise & form gall stones
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hydrophobic, small molecule, made in liver
uses;
needed to make sex hormones, testosterone & oestrogen & progesterone
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function of lipids
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protection from drying out, e.g. leaves
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waxes
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uses
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wax on beetles (cuticle), reduce water loss
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Triglycerides
formed (process of esterification) as a result of condensation reaction involving the -OH group of glycerol & the -COOH group of each fatty acids forming ester bonds
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