Multiple choice

Which of the following matches of metalloenzyme and metal cofactors are incorrect? A. Tyrosinase: Copper B. Urease: Copper C. Dopamine β-hydroxylase: Nickel D. Catechol dioxygenase: Iron

  1. A and B

  2. A and D

  3. B and C

  4. B and D

  5. C and D
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This option is correct because urease is a nickel-containing metalloenzyme of high molecular weight that catalyses the hydrolysis of urea into carbon dioxide and ammonia and dopamine β-hydroxylase is a copper-containing enzyme that synthesises norepinephrine from dopamine.

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