Question: what is the difference between the structure of a triglyceride and a phospholipid?
Answer: While triglycerides have glycerol and three fatty acids, phospholipids have glycerol, two fatty acids and a phosphate. ... However, phospholipids have a more rigid chemical structure than triglycerides do, so they make cell membranes tougher and help them to hold their shape better than triglycerides alone could.