what are the four different types of biological molecules
Four Classes of Biological Macromolecules. There are four major classes of biological macromolecules: carbohydrates; lipids; proteins; nucleic acids; Each of these types of macromolecules performs a wide array of important functions within the cell; a cell cannot perform its role within the body without many different types of these crucial molecules. In combination, these biological macromolecules make up the majority of a cellâs dry mass. (Water molecules make up the majority of a cellâs total mass.) All the molecules both inside and outside of cells are situated in a water-based (i.e., aqueous) environment, and all the reactions of ...