Identify the correct statement regarding enzymes :

Options

A. enzymes are specific biological catalysts that cannot be poisoned
B. enzymes are normally heterogeneous catalysts that are very specific in their action
C. enzymes are specific biological catalysts that can normally function at very high temperatures (t-1000 k)
D. enzymes are specific biological catalysts that possess well-defined active sites

Answer

D

Explanation

Enzymes are very specific biological catalysts possessing well - defined active sites