Common Disaccharides and Polysaccharides

Question 1

Sucrose

Answer 1

(1, 1) linkage of glucose and fructose. Alpha with respect to glucose, and beta with respect to fructose. Disaccharide.

Question 2

Maltose

Answer 2

Alpha-(1, 4) linkage of two glucose molecules. Disaccharide.

Question 3

Lactose

Answer 3

Beta-(1, 4) linkage of glucose and galactose. Disaccharide.

Question 4

Cellulose

Answer 4

Beta-(1, 4) linkage of glucose molecules. Polysaccharide.`

Question 5

What is amylose also known as?

Answer 5

Starch

Question 6

Amylopectin

Answer 6

Alpha-(1, 4) linkage: a branched chain of glucose molecules with alpha-(1, 6) glycosidic linkages forming the branches.

Question 7

Amylose

Answer 7

Alpha-(1, 4) linkage: an unbranched chain of glucose molecules.

Question 8

Glycogen

Answer 8

Alpha-(1, 4) linkage: a branched chain of glucose molecules with alpha-(1, 6) glycosidic linkages forming the branches.

Question 9

What is the difference between glycogen and amylopectin?

Answer 9

Glycogen has more branches than amylopectin does.