A peptide is a short chain of amino acids linked together by peptide bonds. Amino acids are the building blocks of proteins, and when they join in smaller sequences (typically fewer than 50 amino acids), they form peptides. If the chain gets longer, it becomes a protein.

Peptides are involved in many biological functions within the body, such as:

• Hormonal signaling: Certain peptides act as hormones, like insulin, which regulates blood sugar.

• Immune response: Some peptides help the immune system by acting as antibodies or signaling molecules.

• Tissue repair and growth: Peptides like growth factors aid in healing and tissue regeneration.

From ai