Question

Enzymes discriminate between similar parts of same molecules. This is termed as __________

(a) Stereospecificity

(b) Absolute specificity

(c) Regiospecificity

(d) Group specificity

I have been asked this question in unit test.

Asked question is from Enzyme Kinetics topic in chapter Enzyme Kinetics Fundamentals of Enzyme Technology

Answer 1

Right answer is (c) Regiospecificity

The best I can explain: Regiospecificity means differentiating between parts of same molecule. Absolute specificity means enzymes specific to only one substrate whereas group specificity means enzyme specificity to a group of substrates.  Stereospecificity is observed by optical isomers.