Carbohydrates

Question 1

What types of glycosidic bond do amylose, amylopectin, glycogen and cellulose have?

Answer 1

1) amylose:1-4
2) amylopectin: 1-4, 1-6
3) glycogen: 1-4, 1-6
4) cellulose 1-4

Question 2

If something is branched what does it mean?

Answer 2

Rapid hydrolysis because lots of points for the enzyme to access

Question 3

Amylopectin shape?

Answer 3

Elliptical

Question 4

Glycogen:

• hydrolysis?
• shape?
• type of glycosidic bond?
• osmotic affect?

Answer 4

• rapid hydrolysis because it’s branched
• spherical
• alpha glucose 1-4 and 1-6
• no effect

Question 5

Amylose:

• hydrolysis?
• shape?
• type of glycosidic bond?
• osmotic affect?

Answer 5

• Slow hydrolysis for respiration because there are only 2 enzyme attachment points (doesn’t matter anyway because plants respire slowly)
• coiled
• alpha glucose 1-4
• fewer OH groups (bc compact) exposed on helix so less of an osmotic affect

Question 6

Amylopectin:

• hydrolysis?
• shape?
• type of glycosidic bond?
• osmotic affect?