The tertiary structure of a polypeptide refers to
A) its size.
B) the presence of pleated sheets.
C) the amino acids of which it is made.
D) the overall three-dimensional structure.

Question

Quizplus · Accepted Answer

The tertiary structure of a polypeptide refers to the overall three-dimensional structure, including the folding of the protein chain and the presence of any necessary post-translational modifications. It is determined by various chemical and physical interactions between the amino acid side chains and the surrounding environment. The size, presence of pleated sheets, and specific amino acid composition do not necessarily determine the tertiary structure.

The Tertiary Structure of a Polypeptide Refers to