Lipids and Nucleic Acids
                Used to regulate the cell membrane
https://docs.google.com/drawings/d/16C5TbV28kQ6RnHvf1i4PPe80rfFE2_RH_df3wlfSgkY/edit
Phospholipids
Hydrophobic and hydrophilic ends are the reason why this happens
Protein folding
Fats