<prompt> Most appropriate action of ubiquiting includesElectron transpo chainDegradation of proteinsSynthesis of proteinOxydative deamination  <response>: Proteins are marked for degradation by the attachment of ubiquitin to the amino group of the side chain of a lysine residue. Additional ubiquitins are then added to form a multiubiquitin chain. Such polyubiquinatedproteins are recognized and degraded by a large, multisubunit protease complex, called the proteasome 