[Edit]
See Web Links
See the Web Links for "Wikipedia: Organic compound" to the bottom for the answer.
All biological molecules fall into these four major groups. Maybe this helps to narrow it down slightly :) (This is more for Bio then Chem though)
Carbohydrates,Lipids,Proteins and Nucleic Acids.
First answer by JEK. Last edit by CLogan. Contributor trust: 28 [recommend contributor]. Question popularity: 45 [recommend question]





