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Carbohydrate Chemistry quiz 2

Total questions: 20

Worksheet time: 12mins

Name
Class
Date
1.

Which monosaccharide is used as the preferred source of energy for the brain cells?

a)

D Glucose

b)

L Glucose

c)

Glycogen

d)

Both D and L glucose

2.
The 4 macromolecules are
a)
vitamins, lipids, water, micronutrients
b)
micronutrients, macronutrients, water, vitamins
c)
Lipids, Waxes, Vitamin A, Water
d)
Carbohydrates, Lipids, Proteins, Nucleic Acids
3.
Monosaccharides and Disaccharides are used by the body . . . 
a)
as a source of energy
b)
to make cell membranes
c)
to perform chemical reactions
d)
as a way to store energy
4.
How many water molecules would be lost if 4 monosaccharides were added together?
a)
1
b)
2
c)
3
d)
4
5.
The chemical formula for one monosaccharide is C6H12O6. What is the chemical formula for 4 monosaccharides linked together?
a)
C24H48O24
b)
C24H46O23
c)
C24H42O21
d)
C24H40O20
6.
What reagent is used to test for starch?
a)
iodine
b)
Benedicts
c)
Sudans
d)
Lugol's
7.
Geometric isomers shown below is called
a)
Cis/trans 1,2 dichloroethane
b)
Cis/trans 1,2 dichloroethene
c)
Cis/trans 1,2 chloroethane
d)
Cis/trans 1,2 chloroethene
8.

Which monosaccharide is used as a source of energy for the spermatozoa?

a)

Glucose

b)

Fructose

c)

Galactose

d)

Glycogen

9.

Which monosaccharide is optically inactive?

a)

Glyceraldehyde

b)

sucrose

c)

Dihydroxy acetone

d)

Glucose

10.

What is odd out of the following four

Glucose, Galactose, Mannose and Fructose

a)

Glucose

b)

Fructose

c)

Galactose

d)

Mannose

11.

Choose the ketopentose-

a)

Ribose,

b)

Xylose,

c)

Xylulose and Arabinose

d)

Ribulose

12.

Name a sugar acid produced from glucose under the influence of mild oxidizing agent

a)

Glucaric acid

b)

Gluconic acid

c)

glucuronic acid

d)

all of the above

13.

D and L isomers differ from each other by orientation around which C atom?

a)

Penultimate carbon

b)

Lowest number of asymmetric carbon

c)

any carbon

d)

all of the above

14.

Alpha and Beta anomers differ in orientation around 5 th carbon atom in a hexose- True or false ?

a)

True

b)

False

15.

Mucic acid is produced from—- ?

a)

Galactose

b)

Maltose

c)

Glucose

d)

Mannose

16.

Name a sugar alcohol with five carbon atoms

a)

Sorbitol

b)

Dulcitol

c)

Ribitol

d)

mannitol

17.

Which of the following are non reducing sugars

a)

Dihydroxy acetone

b)

Sucrose

c)

Trehalose

d)

Both Sucrose and Trehalose

18.

Name a ketose sugar containing 7 Carbon atoms

a)

Fructose

b)

Sorbose

c)

Sedoheptulose

d)

Xylulose

19.

- Name the sugar alcohol produced from the reduction of Glyceraldehyde.

a)

Glycerol

b)

Glycol

c)

Dihydroxy acetone

d)

acetone

20.

How many cyclic isomers of Aldohexoses are found in the biological system?

a)

8

b)

16

c)

32

d)

64

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