The highlighted part of this molecule is derived from

The answer is glycerol: alternate parts of the atom are gotten from unsaturated fats.  

Explanation:

Glycerol, a normally occurring sugar, can be utilized as a fuel source by the body. The fundamental capacity of glycerol in the body is as a system onto which unsaturated fats are trapped, for capacity. Along these lines the name, triglyceride.Glycerol is by all accounts alright for generally grown-ups. At the point when taken by mouth, glycerol can cause reactions including migraines, wooziness, swelling, queasiness, spewing, thirst, and the runs. Glycerol may not be protected when infused intravenously. Red platelets may get genuinely harmed.