Chapter 23.1, Problem 3SSC

Interpretation Introduction

Interpretation:

The structure of dipeptide $\text{Gly-Ser}$ should be drawn along with circling the peptide bond.

Concept introduction:

Proteins are polymeric biomolecules which are formed by the polymerisation of amino acids. Amino acids are the organic molecules with $–{\text{NH}}_{\text{2}}$ and −COOH functional groups bonded on same carbon atom of the molecule.

They polymerise by peptide linkage to form dipeptide, oligopeptide and polypeptide molecules. Each peptide bond formation is a condensation reaction that occurs with the elimination of water molecule.

Answer to Problem 3SSC

The structure of $\text{Gly-Ser}$ is:

Explanation of Solution

The given name of dipeptide is $\text{Gly-Ser}$.

$\text{Gly}$ denotes glycine amino acid and $\text{Ser}$ denotes serine amino acid.

The structure of glycine and serine is:

When glycine and serine reacts with each other and results in the formation of dipeptide $\text{Gly-Ser}$ with a removal of water molecule. The type of reaction is combination reaction.

The chemical reaction is: