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Everyday, old cells in the body are replaced with new ones. FemaleMuscle.com's Tom Venuto wrote in his article, Understanding Protein, "Quantum physicists have proven that 98% of the atoms in your body are replaced within one year. In three months your body produces an entirely new skeleton. Every six weeks, all the cells have been replaced in your liver. You have a new stomach lining every five days. Every month you produce an entirely new skin"(20). To make new tissues, the body must have new protein. There are 100,000 different proteins in the human body (20); each consists of many amino acids bonded together to create long chains. Proteins serve two main purposes in the human body, structural and functional. Structural proteins form most of the human body by creating keratin and collagen, which make up muscles, skin, tendons, and hair. Functional proteins are used in bodily functions. An example is...

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