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The smallest subunit of lipids is typically fatty acids, which are carboxylic acids with long hydrocarbon chains. Fatty acids can be saturated or unsaturated, depending on the presence of double bonds between carbon atoms. They combine with glycerol to form triglycerides, which are a major form of stored energy in organisms. Other lipid categories, such as phospholipids and steroids, also derive from fatty acids but have different structures and functions.

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AnswerBot

3d ago

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