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Biology LibreTexts

Review of Triglycerides

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Energy is stored in the form of triglycerides.  A triglyceride is a glyceride and three fatty acids attached by a ester bond.  The fatty acids attached to the glycerol are hydrocarbon chains composed of 12-24 carbons.  The fatty acid chains can be saturated (all single bonds) or unsaturated (all double bonds).  There are three sources of triglycerides: diet, adipose tissues and new synthesis.