Home
Class 12
CHEMISTRY
Explain secondary structure of proteins....

Explain secondary structure of proteins.

A

fixed configuration of the polypeptide backbone

B

alpha-helical backbone

C

hydrophobic interactions

D

sequence of alpha-amino acids.

Text Solution

Verified by Experts

The correct Answer is:
B
The secondary structure of a protein refers to the shape in which a long peptide chain can exist. There are two different conformations of the peptide linkage present in protein, these are a-helix and b-conformation. The a-lielix always has a right handed arrangement. In b-conformation all peptide chains are stretched out to nearly maximum extension and then laid side by side and held together by intermolecular hydrogen bonds. Tlie structure resembles the pleated folds of drapery and therefore is known as b-pleated sheet.
Promotional Banner

Topper's Solved these Questions

  • BIOMOLECULES

    ACCURATE PUBLICATION|Exercise TRUE AND FALSE (1 MARK) |13 Videos

  • BIOMOLECULES

    ACCURATE PUBLICATION|Exercise 1 MARK QUESTIONS|32 Videos

  • ALDEHYDES ,KETONES AND CARBOOXALIC ACIDS

    ACCURATE PUBLICATION|Exercise DISTINGUISH TEST |5 Videos

  • BOARD PAPER MARCH - 2019

    ACCURATE PUBLICATION|Exercise QUESTIONS|54 Videos

Similar Questions

Explore conceptually related problems

State differences between primary and secondary structure of proteins.

Explain primary and secondary structure of proteins in brief.

What is secondary structure of proteins? Describe types of proteins on the basis of composition.

Quaternary structure of protein

Chemically denaturation does not change the primary structure of protein.

What is meant by tertiary structure of proteins?