<prompt> Valine is an essential amino acid since it cannot be synthesized by the body. Which of the following describes the side chain of valine?Contains a sulfhydryl groupContains a branched chain hydrocarbonContains an aromatic ringDoesnt have a side chain  <response>: Valine, along with isoleucine and leucine, are branched chain amino acids. Cysteine contains a sulfhydryl group. Phenylalanine contains an aromatic ring. Glycine doesnt have a side chain. 