Compound X is a reducing sugar which,on hydrolysis,affords two molar equivalents of d-glucose.This hydrolysis is catalyzed by an enzyme specific for glucosides of this type: What is the identity of X?

Question

Compound X is a reducing sugar which,on hydrolysis,affords two molar equivalents of d-glucose.This hydrolysis is catalyzed by an enzyme specific for glucosides of this type:  What is the identity of X?

Quizplus · Accepted Answer

Maltose is a disaccharide consisting of two glucose molecules linked by an α(1→4) bond. On hydrolysis, it affords two molar equivalents of d-glucose. The enzyme specific for glucosides of this type would be maltase, which catalyzes the hydrolysis of maltose into two glucose molecules. Therefore, compound X is most likely maltose.

Compound X Is a Reducing Sugar Which,on Hydrolysis,affords Two Molar