Basis of differentiation | Phospholipid | Triglyceride |
Definition | A phospholipid is a lipid made of a glycerol backbone bound to a phosphate group and 2 fatty acids | A triglyceride is a lipid made of a glycerol backbone bound to three fatty acid chains |
Function in body | Make up the cell membrane of cells and break down fats in the body | Act as fat storage in the body |
Presence of phosphate | Has a phosphate group bound to the glycerol backbone | Has no phosphate groups bound to the glycerol backbone |
Location | Are found in cell and organelle membranes to form lipid bilayers | Are stored in adipose tissue and travel in the bloodstream (after combining with cholesterol and protein to form lipoproteins) |
Polarity | Have a polar head (phosphate group) and nonpolar tails (fatty acids) | Are non-polar |