Upon chemical analysis, a particular polypeptide was found to contain 100 amino acids. how many peptide bonds are present in this protein?

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08-09-2022
Biology

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Upon chemical analysis, a particular polypeptide was found to contain 100 amino acids. how many peptide bonds are present in this protein?

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mickymike92 mickymike92 · Answer 1 · 2022-09-14T16:07:43+02:00

The number of peptide bonds are present in this protein is 99; option 3.

What are polypeptides?

Polypeptides also know as proteins are macromolecules which are composed of monomers of amino acid units.

Polypeptides are formed when amino acids are linked to each other by peptide bonds.

Peptide bonds are formed between the α-nitrogen atom of the first amino acid and the carbonyl carbon atom of the second amino acid.

Therefore, a dipeptide consisting of two amino acid contains one peptide bond; a tripeptide consisting of three amino acid contains two peptide bonds.

In general, the number of peptide bonds in a polypeptide containing n amino acids is n -1

A polypeptide that contains 100 amino acids, will have 100 - 1 or 99 peptide bonds.