Proteins By: Megan Martin

What are proteins?

Proteins are any class of nitrogenous organic compounds that consist of large molecules composed of one or more long chains of amino acids and are an essential part of all living organisms.

What do proteins look like?

The appearance of proteins depend on the number and type of amino acids. Both the length of the protein and the complexity varies, as there are about twenty different types of amino acids, those of which change between polar and non polar qualities.

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Who discovered the protein?

In 1948, Linus Pauling, a brilliant biochemist, was put on bed rest due to an illness that restricted him. During this time, he was able to think thoroughly about what to him was simple science, William Astbury's claim that "globular proteins are made up of polypeptide chains chains that are folded to make balls". He used his knowledge of X-ray crystallography and his general knowledge of chemistry to understand how amino acids were able to form proteins.

What do proteins do for your body?

Proteins are used as basic building blocks in the human body. It builds and restores tissue, enzymes, hormones, and other important bodily chemicals. They also make up a large percentage of our bones, blood, muscles, cartilage, and skin.

How are proteins used?

Proteins are used in whenever a person eats something with protein in it. When the food is dissolved, the proteins break up into individual amino acids (small peptide sequences) and then dissolve in the blood.

Where does protein come from?

To safely increase your protein levels, you can eat the right foods. Once you eat the foods, the protein from said food goes into your system and does what it needs to do (see What Do Proteins Do For Your Body?). Protein is the only macromolecule that is not automatically


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