> wiki   Explore:web images videos games  


KidzSearch Safe Wikipedia for Kids.
Jump to: navigation, search

Proteins are polypeptides. A polypeptide is a string or linear chain of amino acids linked together. Amino acids are the basic building blocks of proteins. A single polypeptide chain might make up the entire primary structure of a simple protein; more complex proteins are formed when two or more polypeptides link together. Each protein is a polymer of amino acids.

Polypeptides are made when mRNA is translated, a process involving ribosomes, tRNA and amino acids.