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Which of the following catalyze the same reaction but are different in their control characteristics?

(a) Isoenzyme

(b) Alloenzyme

(c) Poison

(d) Isotopes

I have been asked this question during an interview.

This intriguing question comes from Industrial Microorganisms topic in chapter The Isolation, Preservation and Improvement of Industrial Microorganisms of Fermentation Technology

1 Answer

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Correct answer is (a) Isoenzyme

To explain I would say: Isoenzymes are the enzymes that catalyze the same reactions but are different from their control characteristics. Poisons are the substances which decrease the enzymatic activity. Isotopes have the same proton number and do not catalyze a reaction. Alloenzymes differ structurally and not functionally.

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