In fibrous proteins, polypepetide chains are held together by

Vander Waals forces

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Disulphide linkage

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Electrostatic forces of attraction

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Hydrogen bonds

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Solution

The correct options are
B
Disulphide linkage

D
Hydrogen bonds

$α$ -keratin is held together by disulphide bonds.

On the other hand, the final beta-pleated sheet structure of silk is the result of the interaction of many individual protein chains. Specifically, hydrogen bonding on amide groups on different chains is the basis of beta-pleated sheet in silk proteins.

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Similar questions

In fibrous proteins, polypeptide chains are held together by ........... .
(a) van der Waals forces (b) disulphide linkage
(c) electrostatic forces of attraction (d) hydrogen bonds

Q. In Fibrous proteins,polypeptide chains are held together by:

When the polypeptide chain runs parallel and are held together by hydrogen and disulphide bond then the proteins formed is:

Q. __________ is a globular protein of

\sim 6 k D a

consisting of

51

amino acids, arranged in

2

polypeptide chains held together by disulphide bridge.

__________ is a globular protein of 6 kDa consisting of 51 amino acids arranged in 2 polypeptide chains held together by a disulphide bridge.

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