Which of the Following Describes the Tertiary Structure of a Protein

Question

Which of the following describes the tertiary structure of a protein molecule?
A) bonding of two amino acids to form a dipeptide
B) folding of a peptide chain to form an alpha helix
C) association of several polypeptide chains by weak bonds
D) order in which amino acids are joined in a peptide chain
E) three-dimensional shape of an individual polypeptide chain

Accepted Answer

The tertiary structure of a protein refers to the three-dimensional shape of an individual polypeptide chain, which is determined by interactions among the various amino acids and their side chains.