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1 Lipids are relatively insoluble in water. 2  They are soluble in non-polar solvents, like ether, chloroform, methanol. 3  Lipids have high energy content and are metabolized to release calories.4  Lipids also act as electrical insulators, they insulate nerve axons.haracteristics of Lipids. 1  Lipids are relatively insoluble in water. 2  They are soluble in non-polar solvents, like ether, chloroform, methanol. 3  Lipids have high energy content and are metabolized to release calories.
1. Triglycerides. Triglyceride molecules are made from three molecules of fatty acids and one glycerol molecule. The fat can be either unsaturated or saturated. Triglycerides are able to float in a cellâs cytoplasm since they have a lower density than water and are non-soluble, as is the case with all lipids.