Biomolecules — Carbohydrates

Question 1

Physical properties of glucose

Answer 1

Sweet,
soluble,
Crystalline structure

Question 2

alpha-glucose vs beta-glucose

Answer 2

Alpha:
- On carbon-1, H atom is above the plain
- OH group is below the plain

Beta:
- On carbon-1, H atom is below the plain
- OH group is above the plain

Question 3

Formation of Maltose

Answer 3

• 2 alpha-glucose molecules join tgt via a alpha-1, 4 glycosidic bond.
• 1 H20 molecule join is produced
• Reaction: condensation

Question 4

Why is hydrolysis?

Answer 4

• breaking a disaccharide into its monomers with 1 molecule of H20

Question 5

Starch properties

Answer 5

• ## a mixture of amylose and amylopectin