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Enzymes in the stomach and eventually it gets into the bloodstream. proteins are amino acids but they are not always in the right form and not interchangable. A lack of protein for any reason and your body will draw it from tissues to get what it needs. read digestion in below article for more.

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13y ago
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12y ago

pepsin acts on all proteins/breaks down protein into amino acids

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10y ago

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9y ago

Proteiolysis makes proteins break down into amino acids. Synthesis of proteins and and their break down takes place at various stages of metabolism.

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11y ago

Pepsin

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Q: What breaks down proteins into shorter polypeptide chains?
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