Question 1

Which of the following is the general chemical formula for carbohydrates?

Accepted Answer

$$\mathrm{C}_n\mathrm{H}_{2n}\mathrm{O}_n$$

Question 2

Monosaccharides are characterized by which of the following properties?

Accepted Answer

They are carbohydrate monomers and are water-soluble.

Question 3

Which type of bond connects monosaccharide units in polysaccharides?

Accepted Answer

Glycosidic bond

Question 4

Which polysaccharide is primarily responsible for energy storage in animals?

Accepted Answer

Glycogen

Question 5

Cellulose is an important polysaccharide because it:

Accepted Answer

Forms cell walls in plants

Question 6

Which functional group is present in all monosaccharides and is essential for their reactivity?

Accepted Answer

Hydroxyl group

Question 7

The most abundant hexose in nature, which serves as a primary energy source for most organisms, is:

Accepted Answer

Glucose

Question 8

Polysaccharides such as starch and glycogen are formed by the repetitive linkage of which monomer?

Accepted Answer

Glucose

Question 9

Which of the following best describes the function of starch in plants?

Accepted Answer

Energy storage

Question 10

Carbohydrates can be covalently linked to proteins to form which of the following?

Accepted Answer

Glycoproteins

Question 11

Which of the following is NOT a function of polysaccharides?

Accepted Answer

Catalysis of reactions

Question 12

Which of the following statements about glycosidic bonds is correct?

Accepted Answer

They are formed between the hydroxyl groups of two monosaccharides.

Question 13

A patient is diagnosed with a genetic disorder that prevents the synthesis of glycogen. Which physiological process would be most directly affected?

Accepted Answer

Energy storage in animals

Question 14

Which of the following polysaccharides is NOT digestible by humans due to the type of glycosidic linkage present?

Accepted Answer

Cellulose

Question 15

Which of the following best explains why glucose is considered a reducing sugar?

Accepted Answer

It contains a free aldehyde or ketone group capable of being oxidized.

Question 16

Which of the following is a correct real-world application of polysaccharides in biotechnology?

Accepted Answer

Cellulose is used in the production of biofuels due to its abundance in plant biomass.

Question 17

Which of the following statements about the structure of polysaccharides is correct?

Accepted Answer

Polysaccharides can be branched or unbranched depending on the type.

Question 18

Which of the following is a distinguishing feature of monosaccharides compared to polysaccharides?

Accepted Answer

Monosaccharides are single sugar units, while polysaccharides are polymers of sugars.

Question 19

Which of the following best describes the role of glycoproteins in biological systems?

Accepted Answer

They are involved in cell recognition and signaling.

Question 20

A scientist is studying a carbohydrate that is water-soluble, sweet-tasting, and forms white crystalline solids. Which class of carbohydrate is she most likely investigating?

Accepted Answer

Monosaccharide

Carbohydrates: Structure, Types, and Functions

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