Question:

Alpha-helix and beta-sheet protein structures belong to which category of structure?

Updated On: Jan 23, 2025
  • Primary structure
  • Secondary structure
  • Tertiary structure
  • Quaternary structure
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The Correct Option is B

Solution and Explanation

Alpha-helix and beta-sheet are types of secondary structures in proteins. The secondary structure refers to the local folded structures that form within a polypeptide due to interactions between the backbone's amide hydrogen and carbonyl oxygen atoms. These structures are stabilized by hydrogen bonds. - Primary structure refers to the linear sequence of amino acids. - Secondary structure includes alpha-helices and beta-sheets. - Tertiary structure involves the overall 3D shape of the polypeptide. - Quaternary structure involves the association of multiple polypeptides to form a functional protein. Thus, the correct answer is (b) Secondary structure.
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