The alpha-helix and pleated sheet are examples of ________ protein structure.
A)primary
B)secondary
C)tertiary
D)quaternary
E)pentanary

Question

Quizplus · Accepted Answer

Alpha-helix and pleated sheet are both examples of secondary protein structure, which refers to the local folding of the polypeptide chain into regular patterns. The primary structure refers to the linear sequence of amino acids, tertiary structure refers to the overall 3-dimensional shape of a single polypeptide chain, quaternary structure refers to the arrangement of multiple polypeptide chains within a protein, and pentanary structure refers to the arrangement of multiple protein molecules.

The Alpha-Helix and Pleated Sheet Are Examples of ________ Protein