Partial Structural Formula - Fill in the Hydrogens (Methionine)
Channel: Professor Heath's Chemistry Channel
Date: 2013-02-03

Methionine, one of the 20 amino acid building blocks from which proteins are made, has the following backbone structure. Each carbon has four covalent bonds, each oxygen has two covalent bonds, each sulfur has two covalent bonds, and every nitrogen has three covalent bonds. The atoms are connected in the sequence shown on the board. 

a) Draw the complete structural formula of methionine.
b) Give the molecular formula for methionine.