Question

-Does Maltose always make an a-1,4-glycosidic bond? Does Lactose always make a b-1,4-glycosidic bond? And does Sucrose always make an a,B-1,2-glycosidic bond?

- what are the constituent monosaccharides for Starch, glycogen, and cellulose?

Answer 1

Yes, Maltose (disaccharide) always make an alpha-1,4-glycosidic linkage between two glucose monosaccharide molecules

Yes, Lactose (disaccharide) always make a beta-1,4-glycosidic linkage between galactose and glucose monosaccharide molecules

Yes, Sucrose (disaccharide) always make an alpha-beta-1,2-glycosidic linkage between glucose and fructose monosaccharide molecules

The constituent monosaccharides of

Starch is alpha-glucose (both amylose- a linear chain, amylopectin- a branched chain)

Glycogen is alpha-glucose (amylopectin units)

Cellulose is beta-glucose