Question #05c87

1 Answer
Lucky13
Sep 6, 2017

Amino Acids

Explanation:

Proteins (also called polypeptides - "poly" already indicating that we are dealing with a molecule composed of many smaller subunits) are long chains of linked up amino acids.
In humans, there are 20-21 essential amino acids (depending on whether one counts a relatively newly discovered selenium-based amino acid), and the order in which they are linked up dictate the structure and function of the protein.

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