Question

What kind of specificity does glucose oxidase exhibit?

(a) Absolute specificity

(b) Group specificity

(c) Stereospecificity

(d) Regiospecificity

I have been asked this question by my college director while I was bunking the class.

This intriguing question comes from Enzyme Kinetics topic in section Enzyme Kinetics Fundamentals of Enzyme Technology

Answer 1

Correct choice is (a) Absolute specificity

The best explanation: Glucose oxidase oxidizes only one substrate i.e., glucose. When a particular enzyme is exhibiting specificity to only one substrate, it's referred to as absolute specificity. Stereospecificity is exhibited by stereoisomers whereas group specificity means enzyme specificity to a group of substrates. Enzymes have the capacity of discriminating between parts of the same molecule. This kind of specificity is called regiospecificity.