Why is the optimal pH for the enzyme catalase 7 to 11?

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My bio teacher gave us a hint that it’s related to the purpose of the stomach. I already know that it can’t function in an acidic environment, now I just need to explain why it can function in an alkaline (base) environment. Thanks!

In: Biology

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Anonymous 0 Comments

Catalase is an enzyme that breaks down hydrogen peroxide, a natural toxic product of bodily catabolism. Because it converts peroxide to water and oxygen, it must be able to work in a majority of the body’s cells. Since the body is mostly aqueous and water has a pH of 7, catalase’s optimal range will be 7 and more basic. Acidity will denature the enzyme.

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