Carbohydrates 2:Polysaccharides as energy stores 2.2.4

Question 1

What are the 3 energy store polysaccharides?

Answer 1

• Amylose
• Amylopectin
• Glycogen

Question 2

Why are glycogen and starch good energy stores of monosaccharides?

Answer 2

• Don’t occupy much space
• Hold glucose in chains, so easily ‘snipped off’ in hydrolysis.
• Branched chains are easier to be snipped off

Question 3

What type of glycosidic bond does amylose have?

Answer 3

1-4

Question 4

What monomer makes up amylose?

Answer 4

a-glucose molecules

Question 5

What shape does amylose have?

Answer 5

Coils into a spiral shape, joined by hydrogen bonds.

Question 6

What type of glycosidic bond does amylopectin have?

Answer 6

1-4 and 1-6

Question 7

Is amylopectin branched?

Answer 7

Yes, due to 1-6 bonds

Question 8

What shape does amylopectin have?

Answer 8

Also coils into spiral shape, by hydrogen bonds. But with branches

Question 9

What monomers make up amylopectin?

Answer 9

a-glucose molecules

Question 10

What glycosidic bond is glycogen bonded together by?

Answer 10

1-4 and 1-6

Question 11

Is glycogen branched?

Answer 11

Yes

Question 12

What monomers make up glycogen?

Answer 12

a-glucose

Question 13

Is glycogen coiled

Answer 13

No, as its 1-4 bonds are shorter.

Question 14

Where are amylose and amylopectin found?

Answer 14

Plants

Question 15

Where is glycogen found?

Answer 15

Animals