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Polysaccharides

The bonds hol...

Question

The bonds holding the characteristic foldings of polypeptide chains in a protein molecule are

A

Peptide bonds

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B

Hydrogen bonds

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C

Glycosidic bonds

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D

Disulphide bonds

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Solution

The correct option is B Hydrogen bonds
In protein, regions of the polypeptide backbone come to lie parallel to each other and are connected by hydrogen bonds.
The hydrogen bonds are formed between the carbonyl oxygen and the amine hydrogen of amino acid in adjacent strands in a polypeptide, which means that the hydrogen bonds are inter-stand.
Hence, The bonds holding the characteristic foldings of polypeptide chains in a protein molecule are Hydrogen bonds.
So, the correct answer is 'Hydrogen bonds'.

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