Answer:
Proteins
Step-by-step explanation:
Proteins are chains made from amino acids. There are 20 different amino acids that are commonly found in plant and animal proteins. These amino acids are joined together through peptide bonds to form long chains called polypeptides, which can then fold into specific shapes to perform a variety of functions in the body. Proteins play important roles in many biological processes, including catalyzing chemical reactions, transporting molecules, and providing structural support.