Formation and breakage of Glycosidic bond

Question 1

How is disaccharide formed?

Answer 1

-two momo. joined by a g.b. via condensation rn

Question 2

Formation of maltose

Answer 2

• 2 a-glucose residues
• a(1->4)g.b.

-reducing sugar as it has one free carbonyl group on one of the glucose residues

Question 3

Formation of sucrose

Answer 3

• a-glucose + B-fructose
• a(1->2) g.b.
• non-reducing sugar as no free carbonyl group

Question 4

Formation of lactose

Answer 4

• B-galactose + a-glucose
• B(1->4) g.b.

-reducing sugar