Question 1

Which glycosidic linkages are present in glycogen?

Accepted Answer

Alpha 1,4 and 1,6 glycosidic bonds only.

Question 2

What is the primary function of glycogen in animals?

Accepted Answer

Energy storage

Question 3

Which polysaccharide is the main storage form of carbohydrates in animals?

Accepted Answer

Glycogen

Question 4

Compare the branching frequency of glycogen and amylopectin. Which statement is correct?

Accepted Answer

Glycogen branches more frequently than amylopectin.

Question 5

Which glycosidic linkage is found in cellulose?

Accepted Answer

$\beta$ 1,4

Question 6

A patient is unable to break down glycogen efficiently. Which enzyme deficiency is most likely responsible?

Accepted Answer

Glycogen phosphorylase

Question 7

Which polysaccharide is found in bacterial cell walls and contains both NAG and NAM repeating units?

Accepted Answer

Peptidoglycan

Question 8

Which of the following polysaccharides is NOT branched?

Accepted Answer

Cellulose

Question 9

What is the repeating sugar unit in starch (amylose and amylopectin)?

Accepted Answer

$\alpha$-D-glucose

Question 10

Which polysaccharide is primarily responsible for structural support in plants?

Accepted Answer

Cellulose

Question 11

If a mutation prevents the formation of $\alpha$ 1,6 glycosidic bonds in glycogen, what would be the most likely effect?

Accepted Answer

Glycogen would have fewer branches.

Question 12

Which of the following is a correct description of amylose?

Accepted Answer

Unbranched polymer of $\alpha$ 1,4 linked glucose units.

Question 13

Which organism primarily stores energy as starch?

Accepted Answer

Plants

Question 14

Which of the following polysaccharides contains both $\alpha$ 1,4 and $\alpha$ 1,6 glycosidic linkages?

Accepted Answer

Glycogen

Question 15

A scientist is studying a polysaccharide that is unbranched and found in plant cell walls. Which polysaccharide is she most likely studying?

Accepted Answer

Cellulose

Question 16

Which glycosidic linkage is responsible for the branching in glycogen?

Accepted Answer

$\alpha$ 1,6

Question 17

Which polysaccharide is found in bacteria and is important for structural integrity?

Accepted Answer

Peptidoglycan

Question 18

Which of the following statements about glycogen is FALSE?

Accepted Answer

Glycogen is found in plant cell walls.

Question 19

Which of the following polysaccharides is composed of NAG and NAM repeating units?

Accepted Answer

Peptidoglycan

Question 20

Which of the following is a branched polysaccharide found in plants?

Accepted Answer

Amylopectin

Glycogen and Polysaccharides: Structure, Linkages, and Biological Roles

Study Guide - Practice Questions