Biochemistry Valine is an essential amino acid since it cannot be synthesized by the body. Which of the following describes the side chain of valine? A Contains a sulfhydryl group B Contains a branched chain hydrocarbon C Contains an aromatic ring D Doesn't have a side chain 💡 Explanation Valine is an essential amino acid since it cannot be synthesized by the body. Which of the following describes the side chain of valine? ✓ Correct Answer: B. Contains a branched chain hydrocarbon