Lipids are hydrophobic or amphiphilic small molecules that include sterols, waxes, fatty acids and phospholipids, and are insoluble in water and soluble in organic solvent. Biological lipids are ...

Starch and cellulose are polymers made from the glucose monomer. Proteins are polymers of the amino acids monomers. Lipids are made from two different molecules called fatty acids and glycerol.