In fibrous proteins, polypeptide chains are held together by
1. van der Waals forces
2. disulfide linkage
3. electrostatic forces of attraction
4. hydrogen bonds
(b, d)
In fibrous proteins, polypeptide chains are held together by hydrogen and disrupt ide bond, in a parallel manner. Due to which fiber-like structure is obtained. Such proteins are generally known as fibrous proteins. These proteins are generally insoluble in water. e.g., Keratin, myosin.
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