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Quiz on Carbohydrates

Total questions: 60

Worksheet time: 1hrs 15mins

Name
Class
Date
1.

Carbohydrates are generally classified as:

a)

Amino acids

b)

Polyhydroxy aldehydes or ketones

c)

Long-chain hydrocarbons

d)

Triacylglycerols

2.

Which is the smallest unit of carbohydrates?

a)

Disaccharide

b)

Oligosaccharide

c)

Monosaccharide

d)

Polysaccharide

3.

The Fischer projection shows horizontal lines as:

a)

Behind the plane

b)

In the plane

c)

Out of the plane

d)

Curved bonds

4.

Interconversion between α- and β- forms of monosaccharides is called:

a)

Oxidation

b)

Mutarotation

c)

Reduction

d)

Condensation

5.

A six-membered ring structure of monosaccharides is called:

a)

Pyranose

b)

Furanose

c)

Acetal

d)

Ketal

6.

The glycosidic bond is formed between:

a)

Two amino acids

b)

Anomeric carbon and an alcohol group

c)

Fatty acid and glycerol

d)

Two phosphate groups

7.

Glycogen is the storage form of carbohydrate in:

a)

Plants

b)

Animals

c)

Bacteria

d)

Fungi

8.

Which carbohydrate provides structural rigidity in plants?

a)

Glycogen

b)

Cellulose

c)

Chitin

d)

Starch

9.

The ABO blood group classification is based on:

a)

Different amino acids

b)

Different oligosaccharides

c)

Different phospholipids

d)

Different fatty acids

10.

The Haworth projection in its most stable conformation is in the:

a)

Chair form

b)

Planar form

c)

Boat form

d)

Open-chain form

11.

Carbohydrates are hydrophobic in nature.

4 lines
12.

Epimers differ at only one chiral center.

4 lines
13.

Polysaccharides may be branched or unbranched.

4 lines
14.

Mutarotation does not occur in disaccharides where the anomeric carbon is bound.

4 lines
15.

Chitin is a carbohydrate present in the plant cell wall.

4 lines
16.

The sugar unit with 5 carbons

(a)  

17.

The carbohydrate storage form in plants

(a)  

18.

The acid formed when the C-1 of an aldose is oxidized

(a)  

19.

The enzyme recognition markers on cell surfaces

4 lines
20.

Short carbohydrates with a few monosaccharides

4 lines
21.

Five-membered sugar ring

(a)  

22.

A complex carbohydrate composed of sulfated glycosaminoglycans covalently linked to proteins

(a)  

23.

Types of monosaccharides according to functional group:

4 lines
24.

Forms of glucose ring structure:

4 lines
25.

Functions of polysaccharides in living organisms:

4 lines
26.

Examples of polysaccharides with structural function:

4 lines
27.

Examples of glycoconjugates:

4 lines
28.

Storage polysaccharides:

4 lines
29.

Complex carbohydrates involved in cell adhesion and recognition:

4 lines
30.

Examples of biological importance of carbohydrates:

4 lines
31.

Carbohydrates are:

a)

Hydrocarbons

b)

Polyhydroxy aldehydes or ketones

c)

Amino acids

d)

Fatty acids

32.

Which is the smallest unit of carbohydrates?

a)

Polysaccharide

b)

Oligosaccharide

c)

Monosaccharide

d)

Disaccharide

33.

In a Fischer projection, horizontal bonds project:

a)

Behind the plane

b)

Out of the plane

c)

Along the plane

d)

None of the above

34.

Interconversion between α- and β- anomers is called:

a)

Oxidation

b)

Reduction

c)

Mutarotation

d)

Condensation

35.

A five-membered sugar ring is known as:

a)

Pyranose

b)

Furanose

c)

Hemiacetal

d)

Acetal

36.

The glycosidic bond links:

a)

Amino acids

b)

A fatty acid to glycerol

c)

Two monosaccharides

d)

DNA nucleotides

37.

Which is the storage form of carbohydrate in animals?

a)

Starch

b)

Glycogen

c)

Cellulose

d)

Chitin

38.

Which carbohydrate provides structural rigidity in plants?

a)

Starch

b)

Glycogen

c)

Cellulose

d)

Amylose

39.

Mutarotation is not possible in a disaccharide when:

a)

The glycosidic bond involves the anomeric carbon

b)

It is in open chain form

c)

The sugar is oxidized

d)

It is a reducing sugar

40.

The most stable Haworth conformation of glucose is:

a)

Boat

b)

Planar

c)

Chair

d)

Open chain

41.

The oxidation of C-1 of aldose produces:

a)

Uronic acid

b)

Aldonic acid

c)

Acetal

d)

Alcohol

42.

The oxidation of C-6 of aldose produces:

a)

Aldonic acid

b)

Uronic acid

c)

Acetal

d)

Ketal

43.

Which carbohydrate derivative serves as the exoskeleton in insects?

a)

Cellulose

b)

Starch

c)

Chitin

d)

Glycogen

44.

Glycoproteins and glycolipids function mainly in:

a)

Energy production

b)

Cell adhesion and recognition

c)

Hormone secretion

d)

Protein folding

45.

ABO blood group types are determined by:

a)

Amino acids

b)

Lipids

c)

Oligosaccharides

d)

Nucleotides

46.

Sugar unit containing 5 carbons

(a)  

47.

Storage form of carbohydrate in plants

(a)  

48.

The simplest carbohydrate unit

(a)  

49.

Acid formed when C-6 of aldose is oxidized

(a)  

50.

Six-membered sugar ring

(a)  

51.

Short carbohydrate chain of a few monomers

(a)  

52.

The reducing end of a disaccharide

4 lines
53.

Complex carbohydrate composed of protein + glycosaminoglycan

(a)  

54.

Complex carbohydrate with sphingolipid + sugar

4 lines
55.

Storage polysaccharide in animals

(a)  

56.

Structural polysaccharide in plant cell wall

(a)  

57.

Structural carbohydrate in crustacean shells

(a)  

58.

Ring-chain interconversion in sugars

(a)  

59.

Most stable conformation of glucose ring

(a)  

60.

Projection model used to represent sugars

4 lines

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