The main difference between a peptide and a dipeptide lies in the number of amino acids they contain. A peptide is a short chain of amino acids linked together via peptide bonds, while a dipeptide is a specific type of peptide that consists of only two amino acids joined together by a single peptide bond. Peptide: A peptide is a general term used to describe a short chain of amino acids, which can vary in length. Peptides can be classified into different categories based on the number of amino acids they contain. For example, tripeptides consist of three amino acids, and polypeptides consist of a longer chain of amino acids, often more than 50 units.
Dipeptide: A dipeptide is a specific type of peptide that consists of two amino acids linked together by a single peptide bond. Dipeptides have a simple structure and can have either a single peptide bond or two peptide bonds. In summary, both peptides and dipeptides are composed of amino acids linked together by peptide bonds, but peptides can vary in length and complexity, while dipeptides specifically refer to chains of two amino acids.