Starch Flashcards
1
Q
Where is starch mainly found?
A
In plants
2
Q
Alpha or beta?
A
Alpha
3
Q
Insoluble or soluble?
A
Insoluble- doesn’t affect the water potential
4
Q
What shape is starch?
A
Branched/coiled/helical- therefore can fit many glucose molecules into a small space
5
Q
Is starch big or small?
A
Large- cannot cross the cell membrane and diffuse
6
Q
What bonds are in starch?
A
1,4 and 1,6 glycosidic bonds
7
Q
What bonds are in amylose?
A
1,4 glycosidic bonds
8
Q
What bonds are in amylopectin?
A
1,4 and 1,6
9
Q
What shape is amylose?
A
Unbranched helix- coils up to make a helix- can be compacted to fit a lot in a small space
10
Q
What shape is amylopectin?
A
Branched- the branches create a larger SA- more enzymes can attach to the end and hydrolyse to turn it back into glucose
