(D) Secondary structure refers to the regular folding patterns of continuous portions of the polypeptide chain,such as $\alpha$-helices and $\beta$-pl

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Regular folding patterns of continuous portions of the polypeptide chain

(D) Secondary structure refers to the regular folding patterns of continuous portions of the polypeptide chain,such as $\alpha$-helices and $\beta$-pleated sheets. These structures are stabilized by hydrogen bonds formed between the carbonyl oxygen $(C=O)$ of one amino acid residue and the amino hydrogen $(N-H)$ of another residue in the polypeptide backbone.

Class 12 Chemistry Biomolecules Amino Acids and Proteins

Medium

Secondary structure of a protein refers to

AIPMT 1995 All AIPMT

A
Mainly denatured proteins and structures of prosthetic groups
B
Three dimensional structure,specially the bond between amino acid residues that are distant from each other in the polypeptide chain
C
Linear sequence of amino acid residues in the polypeptide chain
D
Regular folding patterns of continuous portions of the polypeptide chain