Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
COMEDK2017ChemistryBiomolecules

The number of disulphide linkages present in insulin are

Options

  1. A1
  2. B2
  3. C3
  4. D4

Correct answer

C. 3

Step-by-step solution

The number of disulphide linkages present in insulin are three. Two linkages are between two polypeptide chains containing 21 and 30 amino acid residues. In addition, the smaller polypeptide chain (21 amino acids) has also an internal disulphide linkage.

Practice Biomolecules on Quantrex Academy →

More from Biomolecules

Identify the correct statement. 2026A small segment of a polypeptide gave on complete hydrolysis 3 molecules of alanine, 2 molecules of glycine and 3 molecules of cysteine. What is the number of peptide linkages in t 2026Match the characteristic from Col. I with the Vitamins given in Col. II. Characteristics Vitamins A Water soluble that is not excreted easily W B₂ B Prevents Cheilosis X B₆ C Fat s 2026The secondary structure of protein consists of: 2026Which among the following is an INCORRECT statement? 2026Which of the following is a correct match? 2026Match List-I with List-II List-I (Vitamins) List-II (Deficiency Diseases) (a) B ₁ (i) Convulsions (b) B ₂ (ii) RBC deficiency in haemoglobin (c) B ₆ (iii) Retarded growth (d) B ₁₂ 2026Consider the following statements: Statement-I: All monosaccharides are reducing sugars. Statement-II: Sucrose can reduce ammoniacal silver nitrate solution. Choose the correct ans 2026 Full Biomolecules list All COMEDK PYQs