Which of the following amino acid residues is destroyed by acid hydrolysis and must be estimated by other means?
A)tyrosine
B)tryptophan
C)valine
D)isoleucine

Question

Quizplus · Accepted Answer

Tryptophan is destroyed by acid hydrolysis and must be estimated by other means, such as by chemical or enzymatic methods. Tyrosine, valine, and isoleucine can be quantified by acid hydrolysis.

Which of the Following Amino Acid Residues Is Destroyed by Acid