W3 - Polysaccharides

Question 1

Two glucose units can be joined together by ???? bond between the ???? groups on C 2, 3, 4 and 6

Answer 1

Glycosidic bonds, hydroxyl groups

Question 2

How many isomers/permutations of glucosyl glucose are there?

Answer 2

8

Question 3

What glycosidic bond is found in maltose?

Answer 3

Alpha-1,4-Glycosidic bond

Question 4

What glycosidic bond is found in sucrose?

Answer 4

Alpha-1,2-Glycosidic bond

Question 5

What glycosidic bond is found in lactose?

Answer 5

Beta-1,4-Glycosidic bond

Question 6

Where do you find sucrase, maltase and lactase enzymes?

Answer 6

On surface of epithelium of small intestine

Question 7

Storage and structural polysaccs are ????-polysaccharides?

Answer 7

Homo-

Question 8

Glycosaminoglycans and glycoproteins are ???-polysaccs

Answer 8

Hetero

Question 9

Glycogen branches, what are the two main glycosidic bonds that form in glycogen?

Answer 9

Alpha-1,4 and 1,6-

Question 10

Structural polysaccharides contain Beta-glycosidic linkages which produce what shape polymers and why?

Answer 10

Linear, suitable to form fibres

Question 11

What glycosidic bonds are found in the structural, linear polysaccharide, cellulose?

Answer 11

Beta-1,4