Polysaccharides

Question 1

Is polysaccharide a carbohydrate polymer? If yes, then what are its monomers?

Answer 1

Yes, its monomers are called monosaccharides.

Question 2

Give an example of a monosaccharide and a polysaccharide!

Answer 2

ANY GOOD EXAMPLE IS FINE
Glucose
GLYCOGEN / AMYLOSE / AMYLOPECTIN

Question 3

How many monosaccharides are there in TRUE polysaccharides?

Answer 3

> 10

Question 4

How many monosaccharides are there in an OLIGOSACCHARIDE?

Answer 4

less than 10 but greater than 2
for example: 8 or 7

Question 5

What does MONO mean?

Answer 5

1

Question 6

what does Di mean?

Answer 6

2

Question 7

What does oligo mean?

Answer 7

3 to 10

Question 8

What does poly mean?

Answer 8

anything more than 3 but usually polysaccharides in this biology course have 10+ monosaccharides

Question 9

What is the definition of condensation?

Answer 9

Joining of monomers together to form a larger polymer where a polymer is formed as well as a by-product Water.

Question 10

What is the definition of Hydrolysis?

Answer 10

a chemical reaction during which polymers (large molecules) break down into monomers (small molecules) by the addition of water.

Question 11

Are polysaccharides sweet tasting like monosaccharides and di-saccharides?

Answer 11

NO. they are not sweet tasting.

Question 12

Are polysaccharides soluble

Answer 12

No unlike mono and di saccharides

Question 13

Are polysaccharides called sugars too?

Answer 13

No they are not, and they are also not sweet tasting.

Question 14

What are the 2 isomers of glucose

Answer 14

Alpha glucose and Beta glucose

Question 15

Examples of Alpha glucose polymers

Answer 15

Amylose, Amylopectin

Question 16

Examples of Beta glucose polymers

Answer 16

Cellulose

Question 17

What type of bonding is in A-glucose?

Answer 17

1,4 glycosidic bonds

Question 18

what type of bonding in B-glucose?

Answer 18

both 1,4 and 1,6 glycosidic bonds

Question 19

What is the main source of energy for respiration, A or B glucose?

Answer 19

Alpha glucose.

Question 20

Are A GLUCOSE polysaccharides good energy stores?

Answer 20

YES

Question 21

WHY Are A GLUCOSE polysaccharides good energy stores?

Answer 21

1- compact, where they can store a lot of energy in a small space
2- Water insoluble so don’t impact water potential in cells
3- Large so don’t diffuse out of the cell

Question 22

Why can’t polysaccharides pass through cell membranes and diffuse out of the cell?

Answer 22

Can’t pass through carrier proteins as they are big

Question 23

Properties of polysaccharides and their importance:
- Large molecule
- Insoluble molecule
-Compact
-Easily broken down

Answer 23

Importance of properties:
- Cannot diffuse out of the cell
- Doesn’t impact cell’s water potential
- Large amount of energy stored in small spaces
- readily available whenever needed