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Action of catalase enzyme

Action of catalase enzyme

A506/0034

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Credit

MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY

Caption

Action of catalase enzyme. Hydrogen peroxide (H202) decomposition being accelerated by the catalase enzyme found in raw liver (liver seen at bottom of flask). An enzyme is a biological catalyst, increasing reaction rates without itself reacting or changing. The hydrogen peroxide is breaking down into oxygen (producing bubbles) and water. The equation for this reaction is: 2H202 ----> 2H20 + O2 Catalase (or hydrogen peroxide oxidoreductase) protects cells from the toxic effects of hydrogen peroxide, which is a powerful oxidizer produced as a biochemical byproduct. Peroxide is used as a bleach and as a reagent in the chemical industry.

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