Question
Biology Question on Enzymes
In which one of the following enzymes, copper is necessarily associated as an activator?
A
Carbonic anhydrase.
B
Tryptophanase
C
Lactic dehydrogenase
D
Tyrosinase
Answer
Tyrosinase
Explanation
Solution
Tyrosinase is a copper containing oxidase which is widely distributed in plants, animals including human. It oxidizes tyrosine to melanin in mammal and causes the cut surfaces of many fruits and vegetables to darken.