ජීවීන් තුළ සිදු වන ජෛව රසායනික ප්රතික්රියාවල ශීඝ්රතාව වැඩි කිරීමට (උත්ප්රේරණය කිරීමට) අවශ්ය වන, ජීවීන් විසින් ම නිපදවනු ලබන, විශේෂිත ප්රෝටීන (කාබනික උත්ප්රේරක) ´´එන්සයිම`` ලෙස හැදින්වේ.
Enzymes are protein molecules in cells which work as biological catalysts. Enzymes speed up chemical reactions in the body, but do not get used up in the process, therefore can be used over and over again.
With an enzyme, chemical reactions go much faster than they would without the enzyme. Most enzymes are proteins.
At any given moment, all of the work being done inside any cell is being done by enzymes. The purpose of an enzyme in a cell is to allow the cell to carry out chemical reactions very quickly.
Enzymes are made from amino acids, and they are proteins. When an enzyme is formed, it is made by stringing together between 100 and 1,000 amino acids in a very specific and unique order. The chain of amino acids then folds into a unique shape. That shape allows the enzyme to carry out specific chemical reactions -- an enzyme acts as a very efficient catalyst for a specific chemical reaction. The enzyme speeds that reaction up tremendously.
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