Polysaccharides

Question 1

Which types of linkages are usually formed between carbohydrates

Answer 1

Linear alpha(1-4) linkage or branched alpha(1-6) linkage

Question 2

Polysachharides are ideal for two main roles. These are

Answer 2

As storage and structural components

Question 3

What are the types of polysaccharide based on the type of monosaccharide present

Answer 3

Homopolysaccharide

Heteropolysaccharide

Question 4

Examples of homo and heteroglycams

Answer 4

Homo
Starch glycogen dextran

Hetero
Agar
Chitin
Peptidoglycans

Question 5

Dextran use medicinal

Answer 5

Medicinally as an antithrombotic to reduce blood viscosity

Question 6

Chitin is composed of units of..

Answer 6

N-acetyl-glucosamine with beta-1,4 glycosidic linkages

Question 7

Beta 1,4 bridges in cellulose are hydrolysis by the enzyme

Answer 7

Cellobiase

Absent in human digestive system

Question 8

Inulin is a polymer of..

Answer 8

Fructose

Found in bulbs: garlic onion etc

Not readily metabolized. readily filtered by kidney. Used to test kidney function

Question 9

What type of linkages are found in inulin

Answer 9

Beta-1,2-linkages

Question 10

3 main types of heteropolysaccharides

Answer 10

Proteoglycans (GAG + linkage Sugar+ Protein)
Glycoproteins
GAGs

Question 11

Glucosaminoglycans basic structure

Answer 11

Acidic sugar + amino sugar

Question 12

Agar contains…

Answer 12

Galactose, glucose and other sugars

Question 13

What is agarose and what is it used for

Answer 13

Made up of galactose combined with 3,6-anhydrogalactose units. It is used as matrix for electrophoresis