Chapter 24, Problem 54A

Interpretation Introduction

Interpretation: The structure of the two tripeptides Ala-Ser-Gly and Gly-Ser-Ala are the same is to be explained.

Concept Introduction: The building blocks of proteins are amino acids, which are the chemical compounds that come together to make proteins. These biomolecules are essential for human growth and development and are engaged in a number of biological and chemical processes in the body.

Answer to Problem 54A

The structure of the two tripeptides Ala-Ser-Gly and Gly-Ser-Ala are different due to different structural arrangement.

Explanation of Solution

An amino acid short chain is known as a peptide.

These amino acids serve as the building blocks of proteins.

Different proteins are coded for by various amino acid sequences.

Peptide bonds, formed when the carboxyl end of one amino acid joins the amine end of another, hold the amino acids together.

The structures of alanine, serine, and glycine are as follows:

  

The structure of Ala-Ser-Gly is as follows:

  

The structure of Gly-Ser-Ala is as follows:

  

As a result, even though a peptide contains similar amino acids, if they are arranged differently, they also differ structurally.

Though the two tripeptides have the same molecular formula they differ in structural arrangement.