AP EAMCET2014ChemistryBiomolecules
Lactose is disaccharide of
Options
- A-D -glucose and -D -fructose
- B-D -glucose and -D -galactose
- C-D -glucose and -D -ribose
- D-D -glucose and -D -galactose
Correct answer
B. -D -glucose and -D -galactose
Step-by-step solution
Lactose is a disaccharide of - D (+) -glucose and -D(+) -galactose. These monosaccharides are joined together with -1,4 -glycosidic linkage. It is a reducing sugar.