Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425



Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem

. What is a peptide linkage? Choose two amino acids from Fig. 21.2 and draw structures for the two dipeptides those amino acids are capable of forming, circling the peptide linkage in each.

Interpretation Introduction


Interpret the peptide linkage and draw structure of two dipeptides and encircling the peptide bond.

Concept Introduction:

Protein is a long chain of polypeptide in which numbers of amino acids are linked to each other to produce a structure known as protein.

Each amino acid consists of carboxyl end and amino group which are joined through peptide linkage to produce dipeptide, tripeptide and polypeptide according to number of amino acids linked to each other.


The bond formed by the condensation reaction of an amino group and carboxylic acid group of two different amino acids with removal of water is said to be peptide bond.

The peptide bond encircles by red circle and structure of alanine and serine is follows:

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