Chapter 23, Problem 33A

Interpretation Introduction

Interpretation:

The name of a chain of eight amino acids should be determined along with the chain of 200 amino acids.

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.

Answer to Problem 33A

The name of a chain of eight amino acids is known as octa-peptide.

The chain of 200 amino acids is known as protein.

Explanation of Solution

Each peptide bond formation is a condensation reaction that occurs with the elimination of water molecule. The amino acids are bonded together by peptide bond.

A chain of eight amino acids:

According to the rules of naming, eight denotes base name “octa”. Thus, name of compound is octa-peptide.

A chain of 200 amino acids:

The chain of 200 amino acids results in the formation of protein. Protein is a complex molecule where amino acids are bonded in a possible order or sequence.