A triacylglycerol molecule consists of glycerol, one myristic acid unit, and two palmitic acid units. There are two possible isomers for this molecule. Draw these structures and explain how they differ.

• A. In the first structure, the myristic acid forms an ester bond with the first hydroxyl group of glycerol forming an achiral molecule. In the second structure, the myristic acid forms an ester bond with the second hydroxyl group forming a symmetrical and chiral molecule.
• B. In the first structure, the myristic acid forms an ester bond with the first hydroxyl group of glycerol forming a chiral molecule. In the second structure, the myristic acid forms an ester bond with the second hydroxyl group forming a symmetrical and achiral molecule.
• C. In the first structure, the myristic acid forms an ester bond with the first hydroxyl group of glycerol forming an achiral molecule. In the second structure, the myristic acid forms an ester bond with the second hydroxyl group forming a symmetrical and chiral molecule.
• D. In the first structure, the myristic acid forms an ester bond with the first hydroxyl group of glycerol forming a chiral molecule. In the second structure, the myristic acid forms an ester bond with the second hydroxyl group forming a symmetrical and achiral molecule.

Answer: (B)