Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEETChemistryBiomolecules

What is the difference between α-helix and β-pleated sheet structure of proteins?

Options

  1. Aα-helix has a linear, helical arrangement, while β-pleated sheet has a folded, sheet-like arrangement.
  2. BIn the α-helix structure of proteins, the peptide chains are coiled to form a right-handed helix involving hyd
  3. Cα-helix has a zigzag arrangement of amino acids, while β-pleated sheet has a spiral arrangement.
  4. Dα-helix is more stable than β-pleated sheet due to its coiled structure.

Correct answer

B. In the α-helix structure of proteins, the peptide chains are coiled to form a right-handed helix involving hyd

Step-by-step solution

Correct Option is : (B) In the α-helix structure of proteins, the peptide chains are coiled to form a right-handed helix involving hydrogen bonding, while β-pleated sheet is composed of peptide chains lying side by side joined together by intermolecular hydrogen bonding.

Practice Biomolecules on Quantrex Academy →

More from Biomolecules

What type of sugar is the stachyose? 2026What is the number of stereo structure of glucose? 2026Which of the following is having largest size? 2026Which of the following is non reducing sugar? 2026Which of the following exists as a zwitter ion ? 2026Which of the following is a disaccharide ? 2026Name the polymer in which chains are formed by -1,4-glycosidic linkages between -glucose units and branches are formed by -1,6-glycosidic linkages. 2026Match List I with List II List I (CARBOHYDRATE) List II (TYPE) (A). Glycogen (I). Oligosaccharide (B). Stachyose (II). Monosaccharide (C). Ribose (III). Polysaccharide Choose the c 2026 Full Biomolecules list All NEET PYQs