Question 1

Which polysaccharide is the primary structural component in plant cell walls and is composed of $$eta-1$$,4 glycosidic linkages?

Accepted Answer

Cellulose

Question 2

What type of glycosidic linkage is found in chitin, and what is its biological role?

Accepted Answer

$$\beta-1$$,4 linkage; structural support in fungi and exoskeletons

Question 3

Which polysaccharide is highly branched and serves as the main energy storage molecule in animals?

Accepted Answer

Glycogen

Question 4

A patient is unable to digest a certain polysaccharide due to lack of enzymes that break $$eta-1$$,4 glycosidic bonds. Which food component will be indigestible for them?

Accepted Answer

Cellulose

Question 5

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

Accepted Answer

Amylopectin

Question 6

If a plant stores energy in the form of starch, which two polysaccharides are present in starch?

Accepted Answer

Amylose and amylopectin

Question 7

Which polysaccharide is found in the exoskeletons of insects and crustaceans, and what is its repeating unit?

Accepted Answer

Chitin; N-acetylglucosamine

Question 8

A scientist analyzes a sample and finds it contains only $$\alpha-1$$,4 glycosidic linkages. Which polysaccharide is most likely present?

Accepted Answer

Amylose

Question 9

Which polysaccharide is NOT digestible by humans and is important for dietary fiber?

Accepted Answer

Cellulose

Question 10

Which statement best explains why glycogen is more suitable for rapid energy release in animals compared to amylose?

Accepted Answer

Glycogen is highly branched, allowing multiple enzymes to act simultaneously.

Question 11

Which polysaccharide is the main storage form of glucose in plants and contains both $$\alpha-1$$,4 and $$\alpha-1$$,6 linkages?

Accepted Answer

Amylopectin

Question 12

Which of the following is a function of polysaccharides in living organisms?

Accepted Answer

Energy storage and structural support

Question 13

A sample contains thousands of glucose units linked by $$\beta-1$$,4 glycosidic bonds. Which polysaccharide is present?

Accepted Answer

Cellulose

Question 14

Which polysaccharide is found in fungi cell walls and is structurally similar to cellulose?

Accepted Answer

Chitin

Question 15

Which of the following statements about amylopectin is TRUE?

Accepted Answer

It is highly branched and contains both $$\alpha-1$$,4 and $$\alpha-1$$,6 linkages.

Question 16

Which polysaccharide is most similar in structure to amylopectin but is found in animals?

Accepted Answer

Glycogen

Question 17

Which of the following is a correct match between polysaccharide and its function?

Accepted Answer

Glycogen: energy storage in animals

Question 18

A food scientist wants to increase the fiber content of a cereal. Which polysaccharide should be added?

Accepted Answer

Cellulose

Question 19

Which polysaccharide is composed of glucose units and is unbranched?

Accepted Answer

Amylose

Question 20

Which polysaccharide contains N-acetylglucosamine units and is found in the exoskeletons of arthropods?

Accepted Answer

Chitin

Polysaccharides: Structure, Types, and Biological Roles

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