Stucture And Properties Of Glycogen And Cellulose Flashcards
What is glycogen?
A glucose storage molecule in animals.
Where is glycogen stored?
In the liver and muscle cells.
How is glycogen structured?
The same as amylopectin on,y more branches making it very compact.
Why can enzymes convert glycogen back into glucose rapidly?
As glycogen molecules have a lot of free ends.
Why is it important that glycogen can be converted to glucose rapidly?
As animals have a high rate of respiration and the energy needs for animals can change rapidly.
What is glucose in water?
Soluble.
What would a high concentration of glucose in a cell do?
Cause water to enter by osmosis.
What is glycogen in water?
Insoluble.
Why is glycogen an ideal storage molecule in animals?
It doesn’t draw water into the cell by osmosis and it’s too large to diffuse out of the cell.
Where is cellulose found?
In plant cell walls.
What is celluloses structure?
An unbranched straight chain polymer of beta glucose with every second glucose flipped?
Why is every second beta glucose flipped in cellulose?
So the hydroxyl groups can form a 1-4 glycosidic bond.
Why are cellulose molecules straight chained?
To allow them to get close together.
What can form between chains of cellulose?
Hydrogen bonds.
What do the large amount of hydrogen bonds between cellulose chains do?
Makes cellulose extremely strong.
