Lipoproteins are spherical compounds in which fat clusters in the center and phospholipids and protein form the outside of the sphere. match the lipoprotein on the left with its source on the right.

Lipoproteins are biomolecules that have proteins and lipids that are usually found exteriorly to the cell membrane. These structures function to allow movement of lipids and other molecules inside and out of the cell. Further, these serve in cell-to-cell communication.