Question

What are Peptides and peptide linkage? Explain with an example.

Answer 1

Hint: Peptides have a very important role. In our body there are a total of amino acids present. These amino acids are further categorised as essential and non-essential amino acids.

Complete step by step solution
Amino acids are a special kind of organic compound which contains both amino and carboxyl groups. These amino acids are joined together to form proteins and we all know how important proteins are in our daily life.
These amino acids are joined by a condensation reaction. In this condensation reaction, amino acids of one amino acid will reacts with carboxyl group of another amino acids. And water will be eliminated as a by-product’s product of this reaction is peptide. And the bond formed between amino acids is known as peptide bond which is actually an amide bond.

And the naming of these peptides will depend on the number of amino acids involved in the reaction. For example, if two amino acids will involve then the peptide bond is known as dipeptide.

If the peptide is formed by three amino acids then the peptide form will be known as tripeptides.

And if amino acids greater than fifty amino will involve then the peptide form is called polypeptides.

Note:
There is a unique way of naming in the peptides. The naming of peptides depends upon the part of the amino acids that are involved in the condensation reaction. The naming is done in a way that it should be N-terminal (amino terminal) to C-terminal (carboxylic terminal).