In an enzyme, the polypeptide chain folds into a compact shape known as the ________ structure.

Question

Quizplus · Accepted Answer

The tertiary structure of an enzyme refers to the compact folding of the polypeptide chain into its final three-dimensional shape, which is critical for its function as an enzyme. The primary structure refers to the linear sequence of amino acids, the secondary structure refers to local folding patterns (such as alpha helices and beta sheets), and the quaternary structure refers to how multiple polypeptide chains come together to form a functional enzyme complex. The term "pleated" is not a commonly used term in describing protein structure.

In an Enzyme, the Polypeptide Chain Folds into a Compact