B.1.4 Starch, Glycogen And Cellulose Flashcards
Is starch a polysaccharide?
Yes
What is starch’s main role?
Energy storage
True or False: Starch is insoluble
True
True or False: Starch diffuses out of cells
False - due to it being insoluble
Where is glycogen found?
In animals and bacteria but never in plant cells
Glycogen has a very similar structure to which other polysaccharide?
Starch
How does cellulose differ from starch and glycogen?
It’s made out of monomers of beta-glucose rather than alpha-glucose
What is the formation of cellulose?
Straight and unbranded
When cellulose is grouped together, what does it form?
Microfibrils
How are microfibrils arranged?
In parallel groups called fibres
Where can you find cellulose and what does it do there?
Cellulose - provides rigidly to plant wall and prevents cell from bursting due to osmosis.
True or False : The cellulose molecular chains run parallel to each other and are linked by hydrogen bonds
True
