So remember that this is the alpha carbon and this is the beta carbon. And so we're forming a double bond of pi bond between the alpha and the beta carbon. In the process, we essentially oxidize this fatty acid chain. We remove two electrons and we place those two electrons onto this electron accepted a flavin adenine dinucleotide molecule. So we reduce the Fad into Fadh two. And once we reduce the Fad into the Fadh Two, those two electrons are then transferred from the Fadh Two and onto another Flavon protein molecule known as the electron transferring flavor protein.