The key component of proteins is amino acids. These organic compounds serve as the building blocks of proteins, linking together in various sequences to form unique protein structures necessary for numerous biological functions. Proteins play pivotal roles in the body, including acting as enzymes, hormones, and structural components of cells and tissues. There are 20 standard amino acids, and their arrangement in a protein determines the unique characteristics and functions of that protein within an organism. Thus, amino acids are essential for life and overall bodily function.