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Enzyme - Overview

Definition of Enzyme:

Enzymes are complex proteins that cause a specific chemical change in all parts of the body. For example, they can help break down the foods we eat so the body can use them. Blood clotting is another example of enzymes at work.

Enzymes are needed for all bodily functions. They are found in the mouth (saliva), stomach (gastric juice), intestinal fluids, blood, and every other organ and cell in the body.

  • Reviewed last on: 2/20/2011
  • David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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