MAIN GLOSSARY

Protein
A molecule that makes up many parts of every cell in the body. Examples of proteins include hormones, enzymes, hair, and antibodies. Proteins are made up of 20 different types of individual units called amino acids. It is the order of these amino acids in a protein that determines what form and function a protein has. Each gene holds the instructions for making a single protein.

Amino acid, Antibody, Cell, Enzyme, Gene, Hormone, Immune system

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Last modified 3/22/2001