Question

Describe the similarities and differences in the following:

a. amylose and amylopectin

b. amylopectin and glycogen

Short answer

Part a. Both are D glucose polymers and glicosidic bonds are different.

Part b. Both consists of same glicosidic bonds and glycogen is more branched than amylopectin.

Step-by-step solution

Amylose and Amylopectin (Part a)

• Amylose and amylopectin provides the mean of storage.
• This is why plants create amylose in the first place.
• Plants store sugar in amylose and amylopectin because the lengthy chains are a compact way to do it.

Amylase and amylopectin similarities  (Part a)

• Both are D-glucose polymers.
• They are both starch components.

Difference between amylase and amylopectin (Part a) 

• Amylopectin has$\alpha -1,4$and $\alpha -1,6$glycosidic bonds.
• Whereas amylose has just $\alpha -1,4$glycosidic bonds.

Amylopectin and glycogen (Part b)

• The excellent sources of amylopectin plants includes rice, corn, potatoes, and other starchy foods.
• Glycogen, on the other hand, is found in animal meat, intestines, and livers.

Similarities between amylopectin and glycogen (Part b)

• Both are D-glucose polymers.
• Both amylopectin and glycogen consists of $\alpha -1,4$and $\alpha -1,6$-glycosidic bonds.

Difference between amylopectin and glycogen (Part b)

• One of the starch component is amylopectin which is used to store carbs in plants, whereas glycogen is used to store carbohydrates in animals.
• Branching in amylopectin occurs every $25$glucose units. We can claim that glycogen is more branched than amylopectin because branching occurs every $10-15$ glucose units.