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In which one of the following enzymes, is copper necessarily associated as an activator?

1. Carbonic anhydrase
2. Tryptophanase
3. Lactic dehydrogenase
4. Tyrosinase

Correct answer: Tyrosinase

Solution

Tyrosinase is a copper-containing oxidase; copper ions are essential for its catalytic function. The other listed enzymes do not necessarily require copper as an activator.

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