Which of the following statements is TRUE regarding glycine?
A)Glycine is an asymmetric amino acid.
B)Glycine is a large, polar amino acid.
C)Glycine increases the flexibility of the peptide backbone.
D)Glycine is similar to tyrosine in terms of structure and chemical properties.
E)Glycine is special because it contains a -SH group important in protein folding.

Question

Quizplus · Accepted Answer

Glycine is actually the smallest amino acid and is not asymmetric. It is not a large or polar amino acid. It does not contain a -SH group like cysteine which is important in protein folding. However, glycine's side chain is a single hydrogen atom which allows it to fit into tight spaces within the protein structure, increasing its flexibility. This makes choice C the correct answer.

Which of the Following Statements Is TRUE Regarding Glycine