Match each level of protein structure with its description.
-the spatial arrangement of amino acids; can be a helix or a pleated sheet
A)primary
B)secondary
C)tertiary
D)quaternary

Question

Quizplus · Accepted Answer

The spatial arrangement of amino acids refers to the secondary structure of a protein. A helix and a pleated sheet are both examples of secondary structures.

Answer: A 
 The primary structure of a protein refers to the linear sequence of amino acids.

Answer: C 
 The tertiary structure of a protein refers to the overall 3-dimensional shape of a single polypeptide chain, resulting from interactions between amino acid side chains.

Answer: D 
 The quaternary structure of a protein refers to the arrangement of multiple polypeptide chains to form a functioning protein. Not all proteins have quaternary structure.

Match Each Level of Protein Structure with Its Description