What is a linear chain of several amino acids known as?

A linear chain of several amino acids is referred to as a polypeptide. Polypeptides are formed through the process of protein synthesis, where amino acids are linked together by peptide bonds. When these amino acids are joined in a specific sequence, they create a chain that can fold into various shapes and structures, ultimately leading to the formation of functional proteins.

Each polypeptide can consist of a varying number of amino acids, which can chain together to create complex proteins essential for various biological functions, such as enzymes, hormones, and structural components of cells. The term "polypeptide" indicates that there is more than one amino acid in the chain, distinguishing them from smaller chains known simply as peptides, which typically have fewer amino acids.

Understanding the structure and terminology surrounding polypeptides is fundamental when studying protein synthesis and function in biological systems.