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What is the heme portion of catalase known as?

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in Biology – Class 11 by (272k points)
What is the heme portion of catalase known as?

(a) Coenzyme

(b) Prosthetic group

(c) Metal enzyme

(d) Apoenzyme

This question was addressed to me in a national level competition.

The above asked question is from Biomolecules in chapter Biomolecules of Biology – Class 11

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Correct option is (b) Prosthetic group

Explanation: Heme is a prosthetic group of the catalase enzyme. It is an organic compound which is bound tightly to the apoenzyme. The prosthetic group is present at the active site of the catalase enzyme.

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