History of the Universe

History of the Universe eBook. 398 pages, 300 illustrations only $2.99

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Protein

Proteins are one of the main molecules in living things, where they have two main uses:

Protein is often used as a building material. For example, skin, hair, nails and the tough outer skins of insects are made mostly of protein.

Perhaps more important, some proteins do work on other molecules. Proteins which do these jobs are called enzymes.

Proteins are made from small molecules called amino acids.

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History of the Universe eBook
History of the Universe eBook
Only $2.99

Written by Wyken Seagrave
Copyright © 2017 Penny Press Ltd