Which of the following is an example of isozyme ?

Options

A. `alpha`-amylase
B. Glucokinase
C. Lactate dehydrogenases
D. All of these

Answer

D

Explanation

The multiple molecular forms of an enzyme occuring in the same organism and having a similar substrate activity are called isoenymes or isozymes. They have similar properties but different molecular weights and locations. Over 100 enzymes are known to have isoenzymes. `alpha`-amylase of wheat endosperm has 16 isozymes, lactate dehydrogenase has 5 isozymes. Glucokinase is an isozyme of hexokinase.