Monosaccharides Contd

Question 1

Disaccharides are…?

Answer 1

2 Monosaccharides covalently linked together.

Question 2

Oligosaccharides are…?

Answer 2

A few monosaccharides covalently linked together

Question 3

Polysaccharides are…?

Answer 3

Polymers of chains of monosaccharides/disaccharide units.

Question 4

When an aldehyde reacts with an alcohol it forms _________?

Answer 4

Hemiacetal

Question 5

When a ketone reacts with an alcohol, it forms_______?

Answer 5

Hemiketal

Question 6

An example of sugar alcohol

Answer 6

Ribitol

Question 7

Examples of sugar acids

Answer 7

Gluconic acid and

Glucorunic acid

Question 8

What are amino sugars?

Answer 8

Amino group substitutes for hydroxyl.

Question 9

Plants store glucose as _________while animals store glucose as__________

Answer 9

Plants: amylose/amilopectin
Animals: glycogen

Question 10

How is a glycosidic bond formed?

Answer 10

An anomeric hydroxl and another hydroxyl form another sugar joined together splitting out water to from glycosidic bond.

Question 11

Glycosidic links:

Maltose

Answer 11

ã(1*4)

Question 12

Cellobrose

Answer 12

ß(1*4)

Question 13

Sucrose

Answer 13

ã(1-2)

Question 14

Lactose

Answer 14

ß(1-4)

Question 15

Amylose

Answer 15

ã(1-4)

Question 16

Amylopectin

Answer 16

ã(1-4) & ã(1-6)

Question 17

Glycogen

Answer 17

ã(1-6)

Question 18

Cellulose

Answer 18

ß(1*4)

Question 19

Hyaluronate

Answer 19

ß(13) & ß(14)

Question 20

What are glycosaminoglycans?

Answer 20

Glycosaminoglycans are linear polymers of repeating disaccharides.