The building blocks that make up proteins are called amino acids. There are 20 different amino acids that combine in various sequences to form proteins. Each amino acid consists of a central carbon atom, an amino group, a carboxyl group, a hydrogen atom, and a variable side chain (also known as the R group) that determines the specific properties and characteristics of each amino acid. The unique sequence and arrangement of these amino acids determine the structure and function of the protein.
What are the building blocks that make up protein?
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