Question

Which one of the following statements is true for fibrous proteins?

• A. They are soluble in water
• B. Polypeptide chains are held together by hydrogen and disulphide bonds
• C. Polypeptides coil together to give spherical shape
• D. Hydrogen bond is not present

Answer 1

The correct option is B Polypeptide chains are held together by hydrogen and disulphide bonds

When the polypeptide chains run parallel and are held together by hydrogen and disulphide bonds, then fibrous proteins are formed. Such proteins are generally insoluble in water. Hence, the correct answer is option (b).