1. Rotation of the plane of
polarized light is caused by solutions of all of the following monosaccharides
except
a. Glucose
b. Glyceraldehyde
c. Fructose
d. Dihydroxyacetone
e. None of the above
2. Ascorbic acid is an example
of
a. Sugar acid
b. Sugar alcohol
c. Sugar phosphate
d. Deoxy-sugar
e. Amino sugar
3. An invert sugar is
a. An equimolar mixture of
glucose and fructose
b. An equimolar mixture of
a-glucose and 13-glucose
c. An equimolar mixture of
a-fructose and 13-fructose
d. The sugar which changes its
optical activity from levo- to dextrorotatory
e. None of the above
4. A disaccharide formed of two
glucose units is
a. Lactose
b. Maltose
c. Sucrose
d. Amylose
e. Amylopectin
5. Milk sugar is
a. Cellobiose
b. Maltose
c. Sucrose
d. Lactose
e. None of the above
6. Cane sugar is
a. Cellobiose
b. Maltose
c. Sucrose
d. Lactose
e. None of the above
7. Malt sugar is
a. Cellobiose
b. Maltose
c. Sucrose
d. Lactose
e. None of the above
8. Starch is an example of
a. Galactosans
b. Mannosans
c. Glucosaminans
d. Glucosans
e. Fructosans
9. Glycogen is an example of
a. Glucosans
b. Galactosans
c. Mannosans
d. Glucosaminans
e. Fructosans
10. Starch is an example of
a. Structural polysaccharides
present in animals
b. Structural polysaccharides
present in plants
c. Nutrient polysaccharides
present in animals
d. Nutrient polysaccharides
present in plants
e. None of the above
11. Which of the following has
a free anomeric carbon atom
a. Glucose
b. Mannose
c. Lactose
d. Sucrose
e. Fructose
12. A polysaccharide
indigestible by man is
a. Cellobiose
b. Glycogen
c. Amylopectin
d. Cellulose
e. Amylose
13. A branch component of
starch is
a. Glucose
b. Amylopectin
c. Amylose
d. Maltose
e. None of the above
14. Which of the following
statements characterizes glucose
a. It usually exists in the
furanose form
b. It is a ketose
c. Carbon 2 is the anomeric
carbon atom
d. It forms part of the
disaccharide sucrose
e. It is oxidized to form sorbitol
15. Which of the following
contains ketone group
a. Ribulose
b. Glucose
c. Mannose
d. Galactose
e. Lactose
16. Which of the following is
non fermentable sugar?
a. Maltose
b. Sucrose
c. Glucose
d. Fructose
e. Lactose
17. Hydrolysis of sucrose
yields
a. Two moles of glucose
b. Glucose and fructose
c. Galactose and fructose
d. Glucose and mannose
18. Ribitol is
a. Deoxy sugar
b. Amino sugar
c. Sugar alcohol
d. Sugar acid
19. Inulin is a simple
polysaccharide built up of
a. Glucosamine
b. Galactose
c. Fructose
d. Aldose
20. The end products of
glycogen hydrolysis by acid is
a. Dextrin
b. Maltose
c. Amylose
d. Glucose
21. The richest site for
fructose in the body is
a. Mammary gland
b. Seminal fluid
c. Thyroid gland
d. Prostate
22. D-glucose and D-mannose are
epimers with respect to carbon atom number
a. 3
b. 2
c. 5
d. 1
23. Which of the following
polysaccharides is not a polymer of glucose
a. Amylose
b. Glycogen
c. Inulin
d. Amylopectin
24. Reduction of glucose
produces
a. Mannitol
b. Sorbitol
c. Dulcitol
d. Glucuronic acid
25. Gluconic acid, saccharic
acid and glucuronic acid are produced from glucose by
a. Reduction
b. Treatment with acids
c. Oxidation
d. Treatment with bases
26. Galactose is present in the
structure of
a. Sucrose
b. Lactose
c. Lecithin
d. Glycogen
27. Which statement is
incorrect
a. Glucose and mannose are
Epimers
b. α- and β-glucose are
Anomers
c. Glucose and galactose are
Anomers
d. Ribose and xylose are
epimers
28. The invert sugar is
a. Maltose
b. Sucrose
c. Hydrolytic products of
sucrose
d. Hydrolytic products of
maltose
29. Sorbitol is
a. A sugar alcohol
b. Obtained from glucose
c. Obtained from fructose
d. All of the above
30. By complete acid hydrolysis
of starch we obtain
a. Maltose
b. α-glucose
c. β-glucose
d. All of the above
31. The blood sugar is
a. Glucose
b. Fructose
c. Ribose
d. Galactose
32. Ribulose is an example of
a. Aldopentose
b. Ketohexose
c. Ketopentose
d. Deoxy sugar
e. Sugar alcohol
33. Cellulose is
a. Formed of β-glucose
b. Not digested in human
intestine
c. A simple polysaccharide
d. All of the above
34. Dextrose is
a. An aldopentose
b. An aldohexose
c. A ketohexose
d. A ketopentose
35. Sorbitol can be obtained
from fructose by
a. Oxidation
b. Reduction
c. Hydrolysis
d. Acetylation
36. A reducing disaccharide is
a. Glucose
b. Mannose
c. Maltose
d. Fructose
37. Glucose and mannose are
epimers, this means that
a. They are mirror image to
each other
b. One is aldose, the other is
a ketose
c. They differ only in the
configuration to one carbon
d. One is pyranose the other is
furanose
38. Starch is
a. A heterogeneous
polysaccharide
b. Composed of β-glucose
c. Not digested by amylase
d. All of the above
e. None of the above
39. The grape sugar is
a. Fructose
b. Sucrose
c. Glucose
d. Mannose
40. Lactose is
a. A non-reducing sugar
b. Formed of α-glucose and β-fructose
c. both (a) and (b)
d. None of the above
41. Honey is the natural
example for
a. Sucrose
b. Maltose
c. Invert sugar
d. Lactose
42. Reducing property of
monosaccharide is tested by
a. Seliwanoff's test
b. Molisch’s test
c. Fehling test
d. Rothera’s test
e. Shape of osazone crystals
43. Inulin is a polymer of
a. Glucose
b. Levulose
c. Galactose
d. Mannose
44. α.glucose is present in structure of
a. Dextrins
b. Dextran
c. Glycogen
d. All of the above
45. Amylase enzyme can
hydrolyse
a. Starch
b. Dextrins
c. Glycogen
d. All of the above
46. Glucose and lactose are
similar to each other in that both are
a. Reducing
b. Able to give the same
osazone
c. Present in milk
d. All of the above
47. Which of the following is a
disaccharide?
a. Starch
b. Cellulose
c. Glycogen
d. Ribose
e. Lactose
48. Which carbohydrate will you
find in greatest abundance in potatoes?
a. Starch
b. Cellulose
c. Sucrose
d. Glycogen
e. Lactose
49. D-glucuronic acid is an
example of
a. Aldonic acid
b. Aldaric acid
c. Uronic acid
d. Saccharic acid
e. None of the above
50. Reduction of
monosaccharides yields
a. Sugar alcohols
b. Sugar acids
c. amino sugars
d. Deoxy-sugars
e. None of the above
51. Hydrogen gas in presence of
a metal can reduce fructose to
a. Mannitol
b. Ribitol
c. Glycerol
d. Glucose
e. None of the above
52. Cellulose is made up of the
molecules of
a. alpha Glucose
b. Beta Glucose
c. Both of above
d. None of the above
53. The epimer of glucose is:
a. Fructose
b. Galactose
c. Ribose
d. Deoxyribose
54. Alpha and Beta forms of
D-glucose are referred to as:
a. Epimers
b. Anomers
c. Enediols
d. Tautomers
55. Which of the following does
not give a positive test for a reducing sugar?
a. Ribose
b. Galactose
c. Maltose
d. Sucrose
56. Cellulose is a:
a. Branched polymer containing
or 1 —> 4 and on 1 —> 6 glycosidic linkages
b. Straight chain polymer
consisting of B 1 —> 4 glycosidic units
c. Polymer containing glucose,
galactose and glucosamine
d. Mucopolysaccharide
57. In order that a compound
possesses optical activity it must be:
a. Colored
b. Symmetrical
c. Inorganic
d. Asymmetric
58. Hydrolysis of sucrose
yields:
a. Galactose and glucose
b. Maltose and glucose
c. Fructose only
d. Fructose and glucose
59. Starch and glycogen are
both polymers of:
a. Fructose
b. Glucose-1-phosphate
c. Mannose
d. Glucose
60. Which of the following is
not a CHO?
a. Amylose
b. Hyaluronic acid
c. Heparin
d. Palmitic acid
61. The predominant
carbohydrate of muscle
a. D-fructose
b. D-glucose
c. Lactose
d. Glycogen
62. Lactose is also called:
a. Blood sugar
b. Invert sugar
c. Milk sugar
d. Animal starch
63. An example of pentose is:
a. Galactose
b. Mannose
c. Ribose
d. Fructose
64. An example of Hexose is:
a. Ribose
b. Ribulose
c. Xylulose
d. Mannose
65. A mucopolysaccharide with
blood anticoagulant activity is:
a. Chondroitin sulphate B
b. Chondroitin sulphate D
c. Keratan sulphate II
d. Heparin
66. Beta 1-4 glycosidic bond is
present in
a. Maltose
b. Lactose
c. Sucrose
d. None of the above
67. Number of stereo-isomers of
glucose is :
a. 4
b. 8
c. 16
d. none of the above
68. A homopolysaccharide made
up of fructose is :
a. inulin
b. dextrin
c. cellulose
d. glycogen
69. In fructofuranose ,the
anomeric carbon is
a. carbon 1
b. carbon 2
c. carbon 3
d. carbon 4
70. A carbohydrate found in the
DNA :
a. ribose
b. ribulose
c. deoxyribose
d. all of the above
71. Ribulose is a :
a. ketotetrose
b. aldotetrose
c. ketopentose
d. aldopentose
72. In D-glyecraldehyde, -OH
group is present on the right hand side of carbon atom number :
a. 1
b. 2
c. 3
d. 1,2 & 3
73. A disaccharide made up of
two glucose units :
a. maltose
b. sucrose
c. dextrin
d. lactose
74. A carbohydrate found only
in milk :
a. glucose
b. lactose
c. galactose
d. maltose
75. A carbohydrate ,known
commenly as invert sugar :
a. lactose
b. sucrose
c. fractose
d. glucose
76. The homopolysaccharide
among the following is :
a. heparin
b. hyaluronic acid
c. dermatan sulphate
d. cellulose
77. The heteropolysaccharide
among the following is :
a. inulin
b. starch
c. heparin
d. cellulose
78. In straight chain structure
of D-glucose, -OH group is present on the left hand side of carbon atom number
:
a. 2
b. 3
c. 4
d. 5
79. The following causes
levorotation :
a. D-fructose
b. L-glucose
c. both of them
d. None of them
80. The carbon atom which
becomes asymmetric when the straight chain form of monosaccharide changes into
ring form is called :
a. anomeric carbon atom
b. epimeric carbon atom
c. isomeric carbon atom
d. none of the above
81. In straight chain structure
of D-ribose, -OH group is present on the right hand side of carbon atom number
:
a. 2
b. 3
c. 4
d. all of the above
82. In glucopyranose the
anomeric carbon atom is number:
a. 2
b. 1
c. 5
d. 6
83. In alpha-D glucopyranose,
-OH groups projecting below the plane of the ring, are attached to carbon atoms
of numbers:
a. 1,2 & 3
b. 1,2 & 5
c. 1,2 & 4
d. 2,3 & 4
84. Sugar present in DNA is
a. ribose
b. xylulose
c. Arabinose
d. deoxyribose
85. Sugar present in RNA is:
a. Ribose
b. Xylulose
c. Arabinose
d. Deoxyribose
86. Sugar present in seminal
fluid is:
a. glucose
b. fructose
c. galactose
d. maltose
87. All the following
polysaccharides have glucose as their monomer EXCEPT
a. Starch
b. dextrin
c. Inulin
d. glycogen
88. End product of starch on
acid hydrolysis is
a. glucose
b. fructose
c. maltose
d. dextrin
89. End product of enzyme
hydrolysis of starch is
a. glucose
b. fructose
c. maltose
d. dextrin
90. Beta 1,4 glycosidic
linkages are present in
a. Glycogen
b. starch
c. cellulose
d. inulin
91. All the following are
homopolysaccharides EXCEPT
a. Cellulose
b. starch
c. glycogen
d. heparin
92. All the following are
heteropolysaccharides EXCEPT
a. Hyaluronic acid
b. chondroitin sulphate
c. Inulin
d. Heparin
93. Which of the following poly
saccharine is a naturally occurring anti coagulant?
a. Hylauronic acid
b. chondroitin sulphate
c. heparin
d. keratosulphate
94. One of the following
carbohydrates is not digested in the human intestinal tract
a. Starch
b. cellulose
c. lactose
d. sucrose
95. Amylopectin differ from
amaylose by
a. alpha 1,4 glycosidic linkage
b. beta 1,4 glycosidic linkage
c. alpha 1,4 glycosidic linkage
at branching
d. alpha 1,6 glycosidic linkage
at branching
96. One of the following
polysaccharides is called animal starch:
a. glucose
b. heparin
c. dextrin
d. glycogen
97. Glucose on oxidation with
H2O2 gives:
a. Hyaluronic acid
b. Glucuronic acid
c. Glucaric acid
d. Mucic acid
98. Sorbitol is:
a. A sterol
b. An amino alcohol
c. A sugar alcohol
d. A glycerol derivative
99. The functional group
responsible for the reducing property of glucose is present on which carbon
atom?
a. 6
b. 5
c. 2
d. 1
Answers
1. D
2. A
3. A
4. B
5. D
6. C
7. B
8. D
9. A
10. D
11. C
12. D
13. B
14. D
15. A
16. E
17. B
18. C
19. C
20. D
21. B
22. B
23. C
24. B
25. C
26. B
27. B
28. C
29. D
30. B
31. A
32. C
33. D
34. B
35. B
36. C
37. C
38. E
39. C
40. D
41. C
42. C
43. B
44. D
45. D
46. A
47. E
48. A
49. C
50. A
51. A
52. B
53. B
54. B
55. D
56. B
57. D
58. D
59. D
60. D
61. D
62. C
63. C
64. D
65. D
66. D
67. C
68. A
69. B
70. C
71. C
72. B
73. A
74. B
75. B
76. D
77. C
78. B
79. C
80. A
81. D
82. B
83. B
84. D
85. A
86. B
87. C
88. A
89. C
90. C
91. D
92. C
93. C
94. B
95. D
96. D
97. B
98. C
99. D
------------------------------------------ Best Wishes: Dr.Ehab Aboueladab, Tel:01007834123 Email:ehab10f@gmail.com,ehababoueladab@yahoo.com ------------------------------------------