Hello friends, in today's article we see the MCQ's of carbohydrates in biotechnology. So let's see one by one MCQ's of carbohydrates.
Carbohydrates MCQ’s in biotechimestry
1. The general formula of
monosaccharides is
(A) CnH2nOn
(B) C2nH2On
(C) CnH2O2n
(D) CnH2nO2n
2. The general formula of
polysaccharides is
(A) (C6H10O5)n
(B) (C6H12O5)n
(C) (C6H10O6)n
(D) (C6H10O6)n
3. The aldose sugar is
(A) Glycerose
(B) Ribulose
(C) Erythrulose
(D) Dihydoxyacetone
4. A triose sugar is
(A) Glycerose
(B) Ribose
(C) Erythrose
(D) Fructose
5. A pentose sugar is
(A) Dihydroxyacetone
(B) Ribulose
(C) Erythrose
(D) Glucose
6. The pentose sugar present
mainly in the heart muscle is
(A) Lyxose
(B) Ribose
(C) Arabinose
(D) Xylose
7. Polysaccharides are
(A) Polymers
(B) Acids
(C) Proteins
(D) Oils
8. The number of isomers of
glucose is
(A) 2
(B) 4
(C) 8
(D) 16
9. Two sugars which differ
from one another only in configuration around a single carbon atom are termed
(A) Epimers
(B) Anomers
(C) Optical isomers
(D) Stereoisomers
10. Isomers differing as a
result of variations in configuration of the —OH and —H on carbon atoms 2, 3
and 4 of glucose are known as
(A) Epimers
(B) Anomers
(C) Optical isomers
(D) Steroisomers
11. The most important
epimer of glucose is
(A) Galactose
(B) Fructose
(C) Arabinose
(D) Xylose
12. α-D-glucose and β
-D-glucose are
(A) Stereoisomers
(B) Epimers
(C) Anomers
(D) Keto-aldo pairs
13. α-D-glucose + 1120
→ + 52.50 ← + 190 β-D-glucose for glucose above
represents
(A) Optical isomerism
(B) Mutarotation
(C) Epimerisation
(D) D and L isomerism
14. Compounds having the
same structural
formula but
differing in spatial configuration are known as
(A) Stereoisomers
(B) Anomers
(C) Optical isomers
(D) Epimers
15. In glucose the
orientation of the —H and —OH groups around the carbon atom 5 adjacent to the
terminal primary alcohol carbon determines
(A) D or L series
(B) Dextro or levorotatory
(C) α and β anomers
(D) Epimers
16. The carbohydrate of the
blood group substances is
(A) Sucrose
(B) Fucose
(C) Arabinose
(D) Maltose
17. Erythromycin contains
(A) Dimethyl amino sugar
(B) Trimethyl amino sugar
(C) Sterol and sugar
(D) Glycerol and sugar
18. A sugar alcohol is
(A) Mannitol
(B) Trehalose
(C) Xylulose
(D) Arabinose
19. The major sugar of
insect hemolymph is
(A) Glycogen
(B) Pectin
(C) Trehalose
(D) Sucrose
20. The sugar found in DNA
is
(A) Xylose
(B) Ribose
(C) Deoxyribose
(D) Ribulose
Read more MCQ's of Chromatography
21. The sugar found in RNA
is
(A) Ribose
(B) Deoxyribose
(C) Ribulose
(D) Erythrose
22. The sugar found in milk
is
(A) Galactose
(B) Glucose
(C) Fructose
(D) Lactose
23. Invert sugar is
(A) Lactose
(B) Sucrose
(C) Hydrolytic products of
sucrose
(D) Fructose
24. Sucrose consists of
(A) Glucose + glucose
(B) Glucose + fructose
(C) Glucose + galactose
(D) Glucose + mannose
25. The monosaccharide units
are linked by 1 → 4 glycosidic linkage in
(A) Maltose
(B) Sucrose
(C) Cellulose
(D) Cellobiose
26. Which of the following
is a non-reducing sugar?
(A) Isomaltose
(B) Maltose
(C) Lactose
(D) Trehalose
27. Which of the following
is a reducing sugar?
(A) Sucrose
(B) Trehalose
(C) Isomaltose
(D) Agar
28. A dissaccharide formed
by 1,1-glycosidic linkage between their monosaccharide units is
(A) Lactose
(B) Maltose
(C) Trehalose
(D) Sucrose
29. A dissaccharide formed
by 1,1-glycosidic linkage between their monosaccharide units is
(A) Lactose
(B) Maltose
(C) Trehalose
(D) Sucrose
30. Mutarotation refers to
change in
(A) pH
(B) Optical rotation
(C) Conductance
(D) Chemical properties
31. A polysacchharide which
is often called animal starch is
(A) Glycogen
(B) Starch
(C) Inulin
(D) Dextrin
32. The homopolysaccharide
used for intravenous infusion as plasma substitute is
(A) Agar
(B) Inulin
(C) Pectin
(D) Starch
33. The polysaccharide used
in assessing the glomerular fittration rate (GFR) is
(A) Glycogen
(B) Agar
(C) Inulin
(D) Hyaluronic acid
34. The constituent unit of
inulin is
(A) Glucose
(B) Fructose
(C) Mannose
(D) Galactose
35. The polysaccharide found
in the exoskeleton of
invertebrates is
(A) Pectin
(B) Chitin
(C) Cellulose
(D) Chondroitin sulphate
36. Which of the following
is a heteroglycan?
(A) Dextrins
(B) Agar
(C) Inulin
(D) Chitin
37. The glycosaminoglycan
which does not contain uronic acid is
(A) Dermatan sulphate
(B) Chondroitin sulphate
(C) Keratan sulphate
(D) Heparan sulphate
38. The glycosaminoglycan
which does not contain uronic acid is
(A) Hyaluronic acid
(B) Heparin
(C) Chondroitin sulphate
(D) Dermatan sulphate
39. Keratan sulphate is
found in abundance in
(A) Heart muscle
(B) Liver
(C) Adrenal cortex
(D) Cornea
40. Repeating units of
hyaluronic acid are
(A) N-acetyl glucosamine and
D-glucuronic acid
(B) N-acetyl galactosamine and
D-glucuronic acid
(C) N-acetyl glucosamine and galactose
(D) N-acetyl galactosamine and L- iduronic acid
41. The approximate number
of branches in amylopectin is
(A) 10
(B) 20
(C) 40
(D) 80
42. In amylopectin the
intervals of glucose units of each branch is
(A) 10-20
(B) 24-30
(C) 30-40
(D) 40-50
43. A polymer of glucose
synthesized by the action of leuconostoc mesenteroids in a sucrose medium is
(A) Dextrans
(B) Dextrin
(C) Limit dextrin
(D) Inulin
44. Glucose on reduction
with sodium amalgam forms
(A) Dulcitol
(B) Sorbitol
(C) Mannitol
(D) Mannitol and sorbitol
45. Glucose on oxidation
does not give
(A) Glycoside
(B) Glucosaccharic acid
(C) Gluconic acid
(D) Glucuronic acid
46. Oxidation of galactose
with conc HNO3 yields
(A) Mucic acid
(B) Glucuronic acid
(C) Saccharic acid
(D) Gluconic acid
47. A positive Benedict’s
test is not given by
(A) Sucrose
(B) Lactose
(C) Maltose
(D) Glucose
48. Starch is a
(A) Polysaccharide
(B) Monosaccharide
(C) Disaccharide
(D) None of these
49. A positive Seliwanoff’s
test is obtained with
(A) Glucose
(B) Fructose
(C) Lactose
(D) Maltose
50. Osazones are not formed
with the
(A) Glucose
(B) Fructose
(C) Sucrose
(D) Lactose
51. The most abundant
carbohydrate found in nature is
(A) Starch
(B) Glycogen
(C) Cellulose
(D) Chitin
52. Impaired renal function
is indicated when the amount of PSP excreted in the first 15 minutes is
(A) 20%
(B) 35%
(C) 40%
(D) 45%
53. An early feature of
renal disease is
(A) Impairment of the capacity of
the tubule to perform osmotic work
(B) Decrease in maximal tubular excretory
capacity
(C) Decrease in filtration factor
(D) Decrease in renal plasma flow
54. ADH test is based on the
measurement of
(A) Specific gravity of urine
(B) Concentration of urea in urine
(C) Concentration of urea in blood
(D) Volume of urine in ml/minute
55. The specific gravity of
urine normally ranges from
(A) 0.900-0.999
(B) 1.003-1.030
(C) 1.000-1.001
(D) 1.101-1.120
56. Specific gravity of
urine increases in
(A) Diabetes mellitus
(B) Chronic glomerulonephritis
(C) Compulsive polydypsia
(D) Hypercalcemia
57. Fixation of specific
gravity of urine to 1.010 is found in
(A) Diabetes insipidus
(B) Compulsive polydypsia
(C) Cystinosis
(D) Chronic glomerulonephritis
58. Addis test is the
measure of
(A) Impairment of the capacity of
the tubule to perform osmotic work
(B) Secretory function of liver
(C) Excretory function of liver
(D) Activity of parenchymal cells of liver
59. Number of stereoisomers
of glucose is
(A) 4
(B) 8
(C) 16
(D) None of these
60. Maltose can be formed by
hydrolysis of
(A) Starch
(B) Dextrin
(C) Glycogen
(D) All of these
61. α -D-Glucuronic acid is
present in
(A) Hyaluronic acid
(B) Chondroitin sulphate
(C) Heparin
(D) All of these
62. Fructose is present in
hydrolysate of
(A) Sucrose
(B) Inulin
(C) Both of the above
(D) None of these
63. A carbohydrate found in
DNA is
(A) Ribose
(B) Deoxyribose
(C) Ribulose
(D) All of these
64. Ribulose is a these
(A) Ketotetrose
(B) Aldotetrose
(C) Ketopentose
(D) Aldopentose
65. A carbohydrate, commonly
known as dextrose is
(A) Dextrin
(B) D-Fructose
(C) D-Glucose
(D) Glycogen
66. A carbohydrate found
only in milk is
(A) Glucose
(B) Galactose
(C) Lactose
(D) Maltose
67. A carbohydrate, known
commonly as invert sugar, is
(A) Fructose
(B) Sucrose
(C) Glucose
(D) Lactose
68. A heteropolysacchraide
among the following is
(A) Inulin
(B) Cellulose
(C) Heparin
(D) Dextrin
69. The predominant form of
glucose in solution is
(A) Acyclic form
(B) Hydrated acyclic form
(C) Glucofuranose
(D) Glucopyranose
70. An L-isomer of
monosaccharide formed in human body is
(A) L-fructose
(B) L-Erythrose
(C) L-Xylose
(D) L-Xylulose
71. Hyaluronic acid is found
in
(A) Joints
(B) Brain
(C) Abdomen
(D) Mouth
72. The carbon
atom which becomes asymmetric when the straight chain
form of monosaccharide changes into ring form is known as
(A) Anomeric carbon atom
(B) Epimeric carbon atom
(C) Isomeric carbon atom
(D) None of these
73. The smallest
monosaccharide having furanose ring structure is
(A) Erythrose
(B) Ribose
(C) Glucose
(D) Fructose
74. Which of the following
is an epimeric pair?
(A) Glucose and fructose
(B) Glucose and galactose
(C) Galactose and mannose
(D) Lactose and maltose
75. α-Glycosidic bond is present in
(A) Lactose
(B) Maltose
(C) Sucrose
(D) All of these
76. Branching occurs in
glycogen approximately after every
(A) Five glucose units
(B) Ten glucose units
(C) Fifteen glucose units
(D) Twenty glucose units
77. N-Acetylglucosamnine is
present in
(A) Hyaluronic acid
(B) Chondroitin sulphate
(C) Heparin
(D) All of these
78. Iodine gives a red
colour with
(A) Starch
(B) Dextrin
(C) Glycogen
(D) Inulin
79. Amylose is a constituent
of
(A) Starch
(B) Cellulose
(C) Glycogen
(D) None of these
80. Synovial fluid contains
(A) Heparin
(B) Hyaluronic acid
(C) Chondroitin sulphate
(D) Keratin sulphate
81. Gluconeogenesis is
decreased by
(A) Glucagon
(B) Epinephrine
(C) Glucocorticoids
(D) Insulin
82. Lactate formed in
muscles can be utilised through
(A) Rapoport-Luebeling cycle
(B) Glucose-alanine cycle
(C) Cori’s cycle
(D) Citric acid cycle
83. Glucose-6-phosphatase is
not present in
(A) Liver and kidneys
(B) Kidneys and muscles
(C) Kidneys and adipose tissue
(D) Muscles and adipose tissue
84. Pyruvate carboxylase is
regulated by
(A) Induction
(B) Repression
(C) Allosteric regulation
(D) All of these
85. Fructose-2,
6-biphosphate is formed by the action of
(A) Phosphofructokinase-1
(B) Phosphofructokinase-2
(C) Fructose biphosphate isomerase
(D) Fructose-1, 6-biphosphatase
86. The highest
concentrations of fructose are found in
(A) Aqueous humor
(B) Vitreous humor
(C) Synovial fluid
(D) Seminal fluid
87. Glucose uptake by liver
cells is
(A) Energy-consuming
(B) A saturable process
(C) Insulin-dependent
(D) Insulin-independent
88. Renal threshold for
glucose is decreased in
(A) Diabetes mellitus
(B) Insulinoma
(C) Renal glycosuria
(D) Alimentary glycosuria
89. Active uptake of glucose
is inhibited by
(A) Ouabain
(B) Phlorrizin
(C) Digoxin
(D) Alloxan
90. Glucose-6-phosphatase is
absent or deficient in
(A) Von Gierke’s disease
(B) Pompe’s disease
(C) Cori’s disease
(D) McArdle’s disease
91. Debranching enzyme is
absent in
(A) Cori’s disease
(B) Andersen’s disease
(C) Von Gierke’s disease
(D) Her’s disease
92. McArdle’s disease is due
to the deficiency of
(A) Glucose-6-phosphatase
(B) Phosphofructokinase
(C) Liver phosphorylase
(D) muscle phosphorylase
93. Tautomerisation is
(A) Shift of hydrogen
(B) Shift of carbon
(C) Shift of both
(D) None of these
94. In essential pentosuria, urine contains
(A) D-Ribose
(B) D-Xylulose
(C) L-Xylulose
(D) D-Xylose
95. Action of salivary
amylase on starch leads to the formation of
(A) Maltose
(B) Maltotriose
(C) Both of the above
(D) Neither of these
96. Congenital galactosaemia
can lead to
(A) Mental retardation
(B) Premature cataract
(C) Death
(D) All of the above
97. Uridine diphosphate
glucose (UDPG) is
(A) Required for metabolism of galactose
(B) Required for synthesis of glucuronic acid
(C) A substrate for glycogen synthetase
(D) All of the above
98. Catalytic activity of
salivary amylase requires the presence of
(A) Chloride ions
(B) Bromide ions
(C) Iodide ions
(D) All of these
99. The following is
actively absorbed in the intestine:
(A) Fructose
(B) Mannose
(C) Galactose
(D) None of these
100. An amphibolic pathway
among the following is
(A) HMP shunt
(B) Glycolysis
(C) Citirc acid cycle
(D) Gluconeogenesis
101. Cori’s cycle transfers
(A) Glucose from muscles to liver
(B) Lactate from muscles to liver
(C) Lactate from liver to muscles
(D) Pyruvate from liver to muscles
102. Excessive intake of
ethanol increases the ratio:
(A) NADH : NAD+
(B) NAD+ : NADH
(C) FADH2 : FAD
(D) FAD : FADH2
103. Ethanol decreases
gluconeogenesis by
(A) Inhibiting glucose-6-phosphatase
(B) Inhibiting PEP carboxykinase
(C) Converting NAD+
into NADH and decreasing the availability of pyruvate
(D) Converting NAD+ into NADH and
decreasing the availability of lactate
104. Glycogenin is
(A) Uncoupler of oxidative phosphorylation
(B) Polymer of glycogen molecules
(C) Protein primer for glycogen
synthesis
(D) Intermediate in glycogen breakdown
105. During starvation,
ketone bodies are used as a fuel by
(A) Erythrocytes
(B) Brain
(C) Liver
(D) All of these
106. Animal fat is in
general
(A) Poor in saturated and rich in polyunsaturated
fatty acids
(B) Rich in saturated and poor in
polyunsaturated fatty acids
(C) Rich in saturated and polyunsaturated fatty
acids
(D) Poor in saturated and polyunsaturated fatty
acids
107. In the diet of a
diabetic patient, the recommended carbohydrate intake should preferably be in
the form of
(A) Monosaccharides
(B) Dissaccharides
(C) Polysaccharides
(D) All of these
108. Obesity increases the
risk of
(A) Hypertension
(B) Diabetes mellitus
(C) Cardiovascular disease
(D) All of these
109. Worldwide, the most
common vitamin deficiency is that of
(A) Ascorbic acid
(B) Folic acid
(C) Vitamin A
(D) Vitamin D
110. Consumption of iodised
salt is recommended for prevention of
(A) Hypertension
(B) Hyperthyroidism
(C) Endemic goitre
(D) None of these
111. Restriction of salt
intake is generally recommended in
(A) Diabetes mellitus
(B) Hypertension
(C) Cirrhosis of liver
(D) Peptic ulcer
112. Polyuria can occur in
(A) Diabetes mellitus
(B) Diarrhoea
(C) Acute glomerulonephritis
(D) High fever
113. Normal specific gravity of urine is
(A) 1.000-1.010
(B) 1.012-1.024
(C) 1.025-1.034
(D) 1.035-1.045
114. Specific gravity of
urine is raised in all of the following except
(A) Diabetes mellitus
(B) Diabetes insipidus
(C) Dehydration
(D) Acute glomerulonephritis
115. Specific gravity of
urine is decreased in
(A) Diabetes mellitus
(B) Acute glomerulonephritis
(C) Diarrhoea
(D) Chronic glomerulonephritis
116. Heavy proteinuria
occurs in
(A) Acute glomerulonephritis
(B) Acute pyelonephritis
(C) Nephrosclerosis
(D) Nephrotic syndrome
117. Mucopolysaccharides are
(A) Hamopolysaccharides
(B) Hetropolysaccharides
(C) Proteins
(D) Amino acids
118. Bence-Jones protein
precipitates at
(A) 20°-40° C
(B) 40--60° C
(C) 60°-80° C
(D) 80°-100° C
119. Serum cholesterol is
decreased in
(A) Endemic goitre
(B) Thyrotoxicosis
(C) Myxoedema
(D) Cretinism
120. The heptose ketose
sugar formed as a result of chemical reaction in HMP shunt:
(A) Sedoheptulose
(B) Galactoheptose
(C) Glucoheptose
(D) Mannoheptose
121. The general formula for polysaccharide is
(A) (C6H12O6)n
(B) (C6H10O5)n
(C) (C6H12O5)n
(D) (C6H19O6)n
122. The number of isomers
of glucose is
(A) 4
(B) 8
(C) 12
(D) 16
123. The epimers of glucose
is
(A) Fructose
(B) Galactose
(C) Ribose
(D) Deoxyribose
124. The intermediate in
hexose monophosphate shunt is
(A) D-Ribolose
(B) D-Arobinose
(C) D-xylose
(D) D-lyxose
125. Honey contains the
hydrolytic product of
(A) Lactose
(B) Maltose
(C) Inulin
(D) Starch
126. On boiling Benedict’s
solution is not reduced by
(A) Sucrose
(B) Lactose
(C) Maltose
(D) Fructose
127. Glycosides are found in
many
(A) Vitamins
(B) Drugs
(C) Minerals
(D) Nucleoproteins
128. Galactose on oxidation
with conc. HNO3 produces
(A) Gluconic acid
(B) Saccharic acid
(C) Saccharo Lactone
(D) Mucic acid
129. The distinguishing test
between mono-
saccharides and
dissaccharides is
(A) Bial’s test
(B) Selwanoff’s test
(C) Barfoed’s test
(D) Hydrolysis test
130. Cellulose is made up of
the molecules of
(A) α-glucose
(B) β-glucose
(C) Both of the above
(D) None of these
131. Iodine solution
produces no color with
(A) Cellulose
(B) Starch
(C) Dextrin
(D) Glycogen
132. Glycogen structure
includes a branch in between-glucose units:
(A) 6-12
(B) 8-14
(C) 6-10
(D) 12-18
133. Amylose contains
glucose units
(A) 100-200
(B) 200-300
(C) 300-400
(D) 500-600
134. Each branch of
amylopectin is at an interval of glucose units:
(A) 14-20
(B) 24-30
(C) 34-40
(D) 44-50
135. N-acetylneuraminic acid
is an example of
(A) Sialic acid
(B) Mucic acid
(C) Glucuronic acid
(D) Hippuric acid
136. In place of glucuronic
acid chondroitin sulphate B contains
(A) Gluconic acid
(B) Gulonic acid
(C) Induronic acid
(D) Sulphonic acid
137. Blood group substances
consist of
(A) Lactose
(B) Maltose
(C) Fructose
(D) Mucose
138. The component of
cartilage and cornea is
(A) Keratosulphate
(B) Chondroitin sulphate
(C) Cadmium sulphate
(D) Antimony sulphate
139. Benedict’s test is less
likely to give weakly positive results with concentrated urine due to the
action of
(A) Urea
(B) Uric acid
(C) Ammonium salts
(D) Phosphates
140. Active transport of
sugar is depressed by the agent:
(A) Oxaloacetate
(B) Fumarate
(C) Malonate
(D) Succinate
141. The general
test for detection
of carbohydrates is
(A) Iodine test
(B) Molisch test
(C) Barfoed test
(D) Osazone test
142. Glucose absorption may be decreased in
(A) Oedema
(B) Nephritis
(C) Rickets
(D) Osteomalitis
143. Glycogen synthetase
activity is depressed by
(A) Glucose
(B) Insulin
(C) Cyclic AMP
(D) Fructokinase
144. The branching enzyme
acts on the glycogen when the glycogen chain has been lengthened to between
glucose units:
(A) 1 and 6
(B) 2 and 7
(C) 3 and 9
(D) 6 and 11
145. Cyclic AMP is formed
from ATP by the enzyme adenylate cyclase which is activated by the hormone:
(A) Insulin
(B) Epinephrine
(C) Testosterone
(D) Progesterone
146. Hexokinase has a high
affinity for glucose than
(A) Fructokinase
(B) Galactokinase
(C) Glucokinase
(D) All of the above
147. Dihydroxyacetone phosphate
and glyceraldehyde-3-phosphate are intercoverted by
(A) Triose isomerase
(B) Phosphotriose isomerase
(C) Diphosphotriose isomerase
(D) Dihydroxyacetone phosphorylase
148. Citrate is converted to
isocitrate by aconitase which contains
(A) Ca++
(B) Fe++
(C) Zn++
(D) Mg++
149. The reaction succinyl
COA to succinate requires
(A) CDP
(B) ADP
(C) GDP
(D) NADP+
150. The carrier of the
citric acid cycle is
(A) Succinate
(B) Fumarate
(C) Malate
(D) Oxaloacetate
151. UDPG is oxidized to UDP
glucuronic acid by UDP dehydrogenase in presence of
(A) FAD+
(B) NAD+
(C) NADP+
(D) ADP+
152. Galactose is
phosphorylated by galactokinase to form
(A) Galactose-6-phosphate
(B) Galactose-1, 6 diphosphate
(C) Galactose-1-phosphate
(D) All of these
153. The conversion of
alanine to glucose is termed
(A) Glycolysis
(B) Oxidative decarboxylation
(C) Specific dynamic action
(D) Gluconeogenesis
154. The blood sugar raising
action of the hormones of suprarenal cortex is due to
(A) Gluconeogenesis
(B) Glycogenolysis
(C) Glucagon-like activity
(D) Due to inhibition of glomerular filtration
155. Under anaerobic
conditions the glycolysis one mole of glucose yields __ moles of ATP.
(A) One
(B) Two
(C) Eight
(D) Thirty
156. Which of the following
metabolite integrates glucose and fatty acid metabolism?
(A) Acetyl CoA
(B) Pyruvate
(C) Citrate
(D) Lactate
157. Cerebrosides consist of
mostly of this sugar:
(A) Glucose
(B) Fructose
(C) Galactose
(D) Arabinose
158. Glucose will be
converted into fatty acids if the diet has excess of
(A) Carbohydrates
(B) Proteins
(C) Fat
(D) Vitamins
159. The purple ring of
Molisch reaction is due to
(A) Furfural
(B) Furfural + α Napthol
(C) °C Napthol
(D) Furfurol + H2SO4
+ α -Naphthol
160. One of the following
enzymes does not change glycogen synthase a to b.
(A) Glycogen synthase kinases 3, 4, 5
(B) Ca2+ calmodulin
phosphorylase kinase
(C) Ca2+ calmodulin dependent protein
kinase
(D) Glycogen phosphorylase a
161. In EM
pathway-2-phosphoglycerate is converted to
(A) Phospho enol pyruvate
(B) Enol pyruvate
(C) Di hydroxy acetone phosphate (DHAP)
(D) 1,3 bisphosphoglycerate
162. An aneplerotic reaction
which sustains the availability of oxaloacetate is the carboxylation of
(A) Glutamate
(B) Pyruvate
(C) Citrate
(D) Succinate
163. Specific test for
ketohexoses:
(A) Seliwanoff’s test
(B) Osazone test
(C) Molisch test
(D) None of these
164. Two important
byproducts of HMP shunt are
(A) NADH and pentose sugars
(B) NADPH and pentose sugars
(C) Pentose sugars and 4 membered sugars
(D) Pentose sugars and sedoheptulose
165. Pyruvate dehydrogenase
complex and α-ketoglutarate dehydrogenase complex require the following for
their oxidative decarboxylation:
(A) COASH and Lipoic acid
(B) NAD+ and FAD
(C) COASH and TPP
(D) COASH, TPP,NAD+,FAD,
Lipoate
166. The four membered
aldose sugar phosphate formed in HMP shunt pathway is
(A) Xylulose P
(B) Erythrulose P
(C) Erythrose P
(D) Ribulose P
167. Cane sugar (Sucrose)
injected into blood is
(A) changed to fructose
(B) changed to glucose
(C) undergoes no significant
change
(D) changed to glucose and fructose
168. Pentose production is
increased in
(A) HMP shunt
(B) Uromic acid pathway
(C) EM pathway
(D) TCA cycle
169. Conversion of Alanine
to carbohydrate is termed:
(A) Glycogenesis
(B) Gluconeogenesis
(C) Glycogenolysis
(D) Photosynthesis
170. The following is an
enzyme required for glycolysis:
(A) Pyruvate kinase
(B) Pyruvate carboxylase
(C) Glucose-6-phosphatase
(D) Glycerokinase
171. Our body can get
pentoses from
(A) Glycolytic pathway
(B) Uromic acid pathway
(C) TCA cycle
(D) HMP shunt
172. Conversion of glucose
to glucose-6-phosphate in human liver is by
(A) Hexokinase only
(B) Glucokinase only
(C) Hexokinase and glucokinase
(D) Glucose-6-phosphate dehydrogenase
173. The following is an
enzyme required for glycolysis:
(A) Pyruvate kinase
(B) Pyruvate carboxylase
(C) Glucose-6-phosphatose
(D) Glycerokinase
174. The normal glucose
tolerance curve reaches peak is
(A) 15 min
(B) 1 hr
(C) 2 hrs
(D) 2 ½ hrs
175. Oxidative
decarboxylation of pyruvate requires
(A) NADP+
(B) Cytichromes
(C) pyridoxal phosphate
(D) COASH
176. Glucose tolerance is
increased in
(A) Diabetes mellitus
(B) Adrenalectomy
(C) Acromegaly
(D) Thyrotoxicosis
177. Glucose tolerance is
decreased in
(A) Diabetes mellitus
(B) Hypopituitarisme
(C) Addison’s disease
(D) Hypothyroidism
178. During glycolysis,
Fructose 1, 6 diphosphate is decomposed by the enzyme:
(A) Enolase a
(B) Fructokinase
(C) Aldolase
(D) Diphosphofructophosphatose
179. The following enzyme is
required for the hexose monophosphate shunt pathway:
(A) Glucose-6-phosphatase
(B) Phosphorylase
(C) Aldolase
(D) Glucose-6-phosphate
dehydrogenase
180. Dehydrogenase enzymes
of the hexosemonophosphate shunt are
(A) NAD+ specific
(B) NADP+ specific
(C) FAD specific
(D) FMN specific
181. Under anaerobic
conditions the glycolysis of one mole of glucose yields ______moles of ATP.
(A) One
(B) Two
(C) Eight
(D) Thirty
182. Glycogen is converted
to glucose-1-phosphate by
(A) UDPG transferase
(B) Branching enzyme
(C) Phosphorylase
(D) Phosphatase
183. Which of the following
is not an enzyme involved in glycolysis?
(A) Euolase
(B) Aldolose
(C) Hexokinase
(D) Glucose oxidase
184. Tricarboxylic acid
cycle to be continuous requires the regeneration of
(A) Pyruvic acid
(B) oxaloacetic acid
(C) α-oxoglutaric acid
(D) Malic acid
185. Dehydrogenation of
succinic acid to fumaric acid requires the following hydrogen carrier:
(A) NAD+
(B) NADP+
(C) flavoprotein
(D) Glutathione
186. The tissues with the
highest total glycogen content are
(A) Muscle and kidneys
(B) Kidneys and liver
(C) Liver and muscle
(D) Brain and Liver
187. Rothera test is not
given by
(A) β-hydroxy butyrate
(B) bile salts
(C) Glucose
(D) None of these
188. Gluconeogenesis is
increased in the following condition:
(A) Diabetes insipidus
(B) Diabetes Mellitus
(C) Hypothyroidism
(D) Liver diseases
189. The oxidation of lactic
acid to pyruvic acid requires the following vitamin derivative as the hydrogen
carrier.
(A) Lithium pyrophosphate
(B) Coenyzme A+
(C) NAD
(D) FMN
190. Physiological
glycosuria is met with in
(A) Renal glycosuria
(B) Alimentary glycosuria
(C) Diabetes Mellitus
(D) Alloxan diabetes
191. Two examples of
substrate level phosphorylation in EM pathway of glucose metabolism are in the
reactions of
(A) 1,3 bisphosphoglycerate and phosphoenol pyruvate
(B) Glucose-6 phosphate and Fructo-6-phosphate
(C) 3 phosphoglyceraldehyde
and phospho-enolpyruvate
(D) 1,3 diphosphoglycerate
and 2-phosphogly-cerate
192. The number of molecules
of ATP produced by the total oxidation of acetyl CoA inTCA cycle is
(A) 6
(B) 8
(C) 10
(D) 12
193. Substrate level
phosphorylation in TCA cycle is in step:
(A) Isocitrate dehydrogenase
(B) Malate dehydrogenase
(C) Aconitase
(D) Succinate thiokinase
194. Fatty acids cannot be
converted into carbohydrates in the body as the following reaction is not
possible.
(A) Conversion of glucose-6-phosphate into
glucose
(B) Fructose 1, 6-bisphosphate to fructose-6-phosphate
(C) Transformation of acetyl CoA
to pyruvate
(D) Formation of acetyl CoA from fatty acids
195. Tissues form lactic
acid from glucose. This phenomenon is termed as
(A) Aerobic glycolysis
(B) Oxidation
(C) Oxidative phosphorylation
(D) Anaerobic glycolysis
196. One molecule of glucose
gives ______molecules of CO2 in EM-TCA cycle.
(A) 6
(B) 3
(C) 1
(D) 2
197. One molecule of glucose
gives ______molecules of CO2 in one round of HMP shunt.
(A) 6
(B) 1
(C) 2
(D) 3
198. The 4 rate limiting enzymes
of gluconeogenesis are
(A) Glucokinase,
Pyruvate carboxylae phosphoenol
pyruvate carboxykinase and
glucose-6-phosphatase
(B) Pyruvate carboxylase,
phosphoenol pyruvate carboxykinase, fructose1,6 diphosphatase
and glucose-6-phosphatase
(C) Pyruvate kinase, pyruvate carboxylase,
phosphoenol pyruvate carboxykinase and glucose-6-phosphatase
(D) Phospho fructokinase, pyruvate carboxylase,
phosphoenol pyruvate carboxykinase and fructose 1, 6 diphosphatase
199. For glycogenesis,
Glucose should be converted to
(A) Glucuronic acid
(B) Pyruvic acid
(C) UDP glucose
(D) Sorbitol
200. Fluoride inhibits
______ and arrests glycolysis.
(A) Glyceraldehyde-3-phosphate dehydrogenase
(B) Aconitase
(C) Enolose
(D) Succinate dehydrogenase
201. One of the following
statement is correct:
(A) Glycogen synthase ‘a’ is the phosphorylated
(B) cAMP converts glycogen synthase b to ‘a’
(C) Insulin converts glycogen
synthase b to a
(D) UDP glucose molecules interact and grow into a
Glycogen tree
202. Amylo 1, 6 glucosidase
is called
(A) Branching enzyme
(B) debranching enzyme
(C) Glucantransferase
(D) Phosphorylase
203. Glucose enters the
cells by
(A) insulin independent transport
(B) insulin dependent transport
(C) enzyme mediated transport
(D) Both (A) and (B)
204. Glycogen while being
acted upon by active phosphorylase is converted first to
(A) Glucose
(B) Glucose 1-phosphate and Glycogen with 1
carbon less
(C) Glucose-6-phosphate and
Glycogen with 1 carbon less
(D) 6-Phosphogluconic acid
205. When O2
supply is inadequate, pyruvate is converted to
(A) Phosphopyruvate
(B) Acetyl CoA
(C) Lactate
(D) Alanine
206. Reactivation of
inactive liver phosphorylase is normally favoured by
(A) Insulin
(B) Epinephrine
(C) ACTH
(D) Glucagon
207. Before pyruvic acid
enters the TCA cycle it must be converted to
(A) Acetyl CoA
(B) Lactate
(C) α-ketoglutarate
(D) Citrate
208. The hydrolysis of
Glucose-6-phosphate is catalysed by a specific phosphatise which is found only
in
(A) Liver, intestines and kidneys
(B) Brain, spleen and adrenals
(C) Striated muscle
(D) Plasma
209. The formation of
citrate from oxaloacetate and acetyl CoA is
(A) Oxidation
(B) Reduction
(C) Condensation
(D) Hydrolysis
210. Which one of the following is a rate limiting enzyme of gluconeogenesis?
(A) Hexokinase
(B) Phsophofructokinase
(C) Pyruvate carboxylase
(D) Pyruvate kinase
211. The number of ATP
produced in the succinate dehydrogenase step is
(A) 1
(B) 2
(C) 3
(D) 4
212. Which of the following
reaction gives lactose?
(A) UDP galactose and glucose
(B) UDP glucose and galactose
(C) Glucose and Galactose
(D) Glucose, Galactose and UTP
213. UDP Glucuronic acid is
required for the biosynthesis of
(A) Chondroitin sulphates
(B) Glycogen
(C) Lactose
(D) Starch
214. Which one of the
following can covert glucose to vitamin C?
(A) Albino rats
(B) Humans
(C) Monkeys
(D) Guinea pigs
215. Which one of the
following cannot convert glucose to Vitamin C?
(A) Albino rats
(B) Dogs
(C) Monkeys
(D) Cows
216. Transketolase has the
coenzyme:
(A) NAD+
(B) FP
(C) TPP
(D) Pyridoxol phosphate
217. Two conditions in which
gluconeogenesis is increased are
(A) Diabetes mellitus and atherosclerosis
(B) Fed condition and thyrotoxicosis
(C) Diabetes mellitus and
Starvation
(D) Alcohol intake and cigarette smoking
218. Acetyl CoA is not used
for the synthesis of
(A) Fatty acid
(B) Cholesterol
(C) Pyruvic acid
(D) Citric acid
219. The total glycogen
content of the body is about ______ gms.
(A) 100
(B) 200
(C) 300
(D) 500
220. The total Glucose in
the body is ________gms.
(A) 10-15
(B) 20-30
(C) 40-50
(D) 60-80
221. Pyruvate kinase
requires ______ ions for maximum activity.
(A) Na+
(B) K+
(C) Ca2+
(D) Mg2+
222. ATP is ‘wasted’ in
Rapoport-Lueberring cycle in RBCs as otherwise it will inhibit
(A) Phosphoglucomutase
(B) Phosphohexo isomerase
(C) Phosphofructo kinase
(D) Phosphoenol pyruvate carboxy kinase
223. The following co-enzyme
is needed for the oxidative decarboxylation of ketoacids:
(A) NADP+
(B) TPP
(C) Folate coenzyme
(D) Biotin coenzyme
224. Synthesis of Glucose
from amino acids is termed as
(A) Glycolysis
(B) Gluconeogenesis
(C) Glycogenesis
(D) Lipogenesis
225. The following examples
are important heteropolysaccharides except
(A) Amylopectin
(B) Heparin
(C) Peptidoglycan
(D) Hyaluronic acid
226. Whcih of the following
features are common to monosaccharides?
(A) Contain asymmetric centres
(B) Are of 2 types - aldoses and ketoses
(C) Tend to exist as ring
structures in solution
(D) Include glucose, galactose and raffinose
227. Polysaccharides
(A) Contain many monosaccharide units which may
or may not be of the same kind
(B) Function mainly a storage or structural compounds
(C) Are present in large amounts in connective
tissue
(D) All of these
228. The absorption of
glucose in the digestive tract
(A) Occurs in the small intestine
(B) Is stimulated by the hormone Glucagon
(C) Occurs more rapidly than the absorption of any
other sugar
(D) Is impaired in cases of diabetes mellitus
229. UDP-Glucose is
converted to UDP-Glucuronic acid by
(A) ATP
(B) GTP
(C) NADP+
(D) NAD+
230. The enzymes involved in
Phosphorylation of glucose to glucose 6- phosphate are
(A) Hexokinase
(B) Glucokinase
(C) Phosphofructokinase
(D) Both (A) and (B)
231. In conversion of Lactic
acid to Glucose, three reactions of Glycolytic pathway are circumvented, which
of the following enzymes do not participate?
(A) Pyruvate Carboxylase
(B) Phosphoenol pyruvate carboxy kinase
(C) Pyruvate kinase
(D) Glucose-6-phosphatase
232. The normal resting
state of humans, most of the blood glucose burnt as “fuel” is consumed by
(A) Liver
(B) Brain
(C) Kidneys
(D) Adipose tissue
233. A regulator of the
enzyme Glycogen synthase is
(A) Citric acid
(B) 2, 3 bisphosphoglycerate
(C) Pyruvate
(D) GTP
234. Which of the following
compound is a positive allosteric modifier of the enzyme pyruvate carboxylase?
(A) Biotin
(B) Acetyl CoA
(C) Oxaloacetate
(D) ATP
235. A specific
inhibitor for succinate dehydrogenase is
(A) Arsinite
(B) Melouate
(C) Citrate
(D) Cyanide
236. Most of the metabolic
pathways are either anabolic or catabolic. Which of the following pathways is
considered as “amphibolic” in nature?
(A) Glycogenesis
(B) Glycolytic pathway
(C) Lipolysis
(D) TCA cycle
237. Transketolase activity
is affected in
(A) Biotin deficiency
(B) Pyridoxine deficiency
(C) PABA deficiency
(D) Thiamine deficiency
238. The following metabolic
abnormalities occur in Diabetes mellitus except
(A) Increased plasma FFA
(B) Increased pyruvate
carboxylase activate
(C) Decreased lipogenesis
(D) Decreased gluconeogenesis
239. A substance that is not
an intermediate in the formation of D-glucuronic acid from glucose is
(A) Glucoss-1-p
(B) 6-Phosphogluconate
(C) Glucose-6-p
(D) UDP-Glucose
240. The hydrolysis of
Glucose-6-P is catalysed by a phosphatase that is not formed in which of the
following?
(A) Liver
(B) Kidney
(C) Muscle
(D) Small intestine
241. An essential for
converting Glucose to Glycogen in Liver is
(A) Lactic acid
(B) GTP
(C) CTP
(D) UTP
242. Which of the following
is a substrate foraldolase activity in Glycolytic pathway?
(A) Glyceraldehyde-3-p
(B) Glucose-6-p
(C) Fructose-6-p
(D) Fructose1, 6-bisphosphate
243. The ratio that
approximates the number of net molecule of ATP formed per mole of Glucose
oxidized in presence of O2 to the net number formed in abscence of O2
is
(A) 4 : 1
(B) 10 : 2
(C) 12 : 1
(D) 18 : 1
244. The “Primaquin
sensitivity types of haemolytic anaemia has been found to relate to reduced
R.B.C activity of which enzyme?
(A) Pyruvate kinase deficiency
(B) Glucose-6-phosphatase deficiency
(C) Glucose-6-p dehydrogenase deficiency
(D) Hexokinase deficiency
245. Which of the following
hormones is not involved in carbohydrate metabolism?
(A) Cortisol
(B) ACTH
(C) Glucogen
(D) Vasopressin
246. Dehydrogenases involved
in HMP shunt are specific for
(A) NADP+
(B) NAD+
(C) FAD
(D) FMN
247. Which of the following
enzymes in Glycolytic pathway is inhibited by fluoride?
(A) Glyceraldehyde-3-p dehydrogenase
(B) Phosphoglycerate kinase
(C) Pyruvate kinase
(D) Enolase
248. Out of 24 mols of ATP
formed in TCA cycle,2 molecules of ATP can be formed at “substrate level” by
which of the following reaction ?
(A) Citric acid→ Isocitric acid
(B) Isocitrate→ Oxaloacetate
(C) Succinic acid→ Fumarate
(D) Succinylcat→ Succinic acid
249. Which of the following
statements regarding T.C.A cycle is true?
(A) It is an anaerobic process
(B) It occurs in cytosol
(C) It contains no intermediates for Gluconeogenesis
(D) It is amphibolic in nature
250. An allosteric enzyme
responsible for controlling the rate of T.C.A cycle is
(A) Malate dehydrogenase
(B) Isocitrate dehydrogenase
(C) Fumarase
(D) Aconitase
251. The glycolysis is regulated
by
(A) Hexokinase
(B) Phosphofructokinase
(C) Pyruvate kinase
(D) All of these
252. How many ATP molecules
will be required for conversion of 2-molecules of Lactic acid to Glucose?
(A) 2
(B) 4
(C) 8
(D) 6
253. Which of the following
enzyme is not involved in HMP shunt?
(A) Glyceraldehyde-3-p
dehydrogenase
(B) Glucose-6-p-dehydrogenase
(C) Transketolase
(D) Phosphogluconate dehydrogenase
254. In presence of the
following cofactor, pyruvate carboxylase converts pyruvate to oxaloacetate:
(A) ATP, Protein and CO2
(B) CO2 and ATP
(C) CO2
(D) Protein
255. For conversion of
oxaloacetate to phosphoenol pyruvate, high energy molecule is required in the
form of
(A) GTP only
(B) ITP only
(C) GTP (or) ITP
(D) None of these
256. If the more negative
standard reduction potential of a redox pair, the greater the tendency to
(A) To lose electrons
(B) To gain electrons
(C) To lose/gain electrons
(D) To lose and gain electrons
257. Electron transport and
phosphorylation can be uncoupled by compounds that increase the permeability of
the inner mitochondrial membrane to
(A) Electrons
(B) Protons
(C) Uncouplers
(D) All of these
258. The more positive the E0,
the greater the tendency of the oxidant member of that pair to
(A) Lose electrons
(B) Gain electrons
(C) Lose (or) gain electrons
(D) Lose and gain electrons
259. The standard free
energy of hydrolysis of terminal phosphate group of ATP is
(A) -7,300 cal/mol
(B) -8,300 cal/mol
(C) 10,000 cal/mol
(D) +7,300 cal/mol
260. The transport of a pair
of electrons from NADH to O2 via the electron transport chain
produces
(A) -52,580 cal
(B) -50,580 cal
(C) 21,900 cal
(D) +52,580 cal
261. Sufficient energy
required to produce 3ATP from 3 ADP and 3 pi is
(A) -21,900 cal
(B) 29,900 cal
(C) 31,900 cal
(D) 39,900 cal
262. The free energy change,
AG
(A) Is directly proportional to the standard free
energy change, AG
(B) Is equal to zero at
equilibrium
(C) Can only be calculated when the reactants and
products are present at 1mol/1 concentrations
(D) Is equal to -RT in keq
263. Under standard
conditions
(A) The free energy change ∆G°, is equal to 0
(B) The standard free energy change ∆G, is equal
to 0
(C) The free energy change, ∆G°,
is equal to the standard free energy change, ∆G°
(D) Keq is equal to 1
264. An uncoupler of
oxidative phosphorylation such as dinitrophenol
(A) Inhibits electron transport and ATP synthesis
(B) Allow electron transport to proceed without ATP
synthesis
(C) Inhibits electron transport without
impairment of ATP synthesis
(D) Specially inhibits cytochrome b
265. All of the following
statements about the enzymic complex that carries out the
synthesis of ATP during
oxidative phosphorylation are correct except
(A) It is located on the matrix side of the inner
mitochondrial membrane
(B) It is inhibited by oligomycin
(C) It can exhibit ATPase activity
(D) It can bind molecular O2
266. Glucokinase
(A) Is widely distributed and occurs in most
mammalian tissues
(B) Has a high km for
glucose and hence is important in the phosphorylation of glucose
primarily after ingestion of a carbohydrate rich meal
(C) Is widely distributed in Prokaryotes
(D) None of these
267. The reaction catalysed
by phosphofructokinase
(A) Is activated by high concentrations of ATP
and citrate
(B) Uses fruitose-1-phosphate as substrate
(C) Is the rate-limiting reaction
of the glycolytic pathway
(D) Is inhibited by fructose 2, 6-bisphosphate
268. Compared to the resting
state, vigorously contracting muscle shows
(A) An increased conversion of
pyruvate to lactate
(B) Decreased oxidation of pyruvate of
CO2 and water
(C) A decreased NADH/NAD+ ratio
(D) Decreased concentration of AMP
269. Which one of the
following would be expected in pyruvate kinase deficiency?
(A) Increased levels of lactate in the R.B.C
(B) Hemolytic anemia
(C) Decreased ratio of ADP to ATP in R.B.C
(D) Increased phosphorylation of Glucose to Glucose-6-phosphate
270. Which one of the
following statements concerning glucose metabolism is correct?
(A) The conversion of Glucose to lactate occurs
only in the R.B.C
(B) Glucose enters most cells by a mechanism in
which Na+ and glucose are co-transported
(C) Pyruvate kinase catalyses an
irreversible reaction
(D) An elevated level of insulin leads to a
decreased level of fructose 2, 6-bisphosphate
in hepatocyte
271. Which one of the
following compounds cannot give rise to the net synthesis of Glucose?
(A) Lactate
(B) Glycerol
(C) α-ketoglutarate
(D) Acetyl CoA
272. Which of the following
reactions is unique to gluconeogenesis?
(A) Lactate Pyruvate
(B) Phosphoenol pyruvate pyruvate
(C) Oxaloacetate phosphoenol
pyruvate
(D) Glucose-6-phosphate Fructose-6-phosphate
273. The synthesis of
glucose from pyruvate by gluconeogenesis
(A) Requires the participation of
biotin
(B) Occurs exclusively in the cytosol
(C) Is inhibited by elevated level of insulin
(D) Requires oxidation/reduction of FAD
274. The conversion of
pyruvate to acetyl CoA and CO2
(A) Is reversible
(B) Involves the participation of
lipoic acid
(C) Depends on the coenzyme biotin
(D) Occurs in the cytosol
275. Pasteur effect is
(A) Inhibition of glycolysis
(B) Oxygen is involved
(C) Inhibition of enzyme phosphofructokinase
(D) All of these
276. How many ATPs are
produced in the conversion of phosphoenol pyruvate to citrate?
(A) 1
(B) 2
(C) 4
(D) 6
277. Reduced glutathione
functions in R.B.Cs to
(A) Produce NADPH
(B) Reduce methemoglobin to hemoglobin
(C) Produce NADH
(D) Reduce oxidizing agents such
as H2O2
278. Phenylalanine is the
precursor of
(A) L-DOPA
(B) Histamine
(C) Tyrosine
(D) Throxine
279. D-Mannose is present in
some plant products like
(A) Resins
(B) Pectins
(C) Mucilage
(D) Gums
280. Galactose is a main
constituent of
(A) Milk sugar
(B) Honey
(C) Cane sugar
(D) Chitin
281. Glucosamine is an
important constituent of
(A) Homopolysaccharide
(B) Heteropolysaccharide
(C) Mucopolysaccharide
(D) Dextran
282. Glycogen is present in
all body tissues except
(A) Liver
(B) Brain
(C) Kidney
(D) Stomach
283. Iodine test is positive
for starch, dextrin and
(A) Mucoproteins
(B) Agar
(C) Glycogen
(D) Cellulose
284. The general formula for polysaccharide is
(A) (C6H10O5)n
(B) (C6H12C6)n
(C) (C6H12O5)n
(D) (C5H10O5)n
285. Epimers of glucose is
(A) Fructose
(B) Galactose
(C) Ribose
(D) Deoxyribose
286. Human heart muscle
contains
(A) D-Arabinose
(B) D-Ribose
(C) D-Xylose
(D) L-Xylose
287. The intermediate n
hexose monophosphate shunt is
(A) D-Ribulose
(B) D-Arabinose
(C) D-xylose
(D) D-Lyxose
288. On boiling Benedict’s
solution is not reduced by
(A) Sucrose
(B) Lactose
(C) Maltose
(D) Fructose
289. The distinguishing test
between monosaccharides and dissaccharide is
(A) Bial’s test
(B) Seliwanoff’s test
(C) Barfoed’s test
(D) Hydrolysis test
290. Barfoed’s solution is
not reduced by
(A) Glucose
(B) Mannose
(C) Sucrose
(D) Ribose
291. Cori cycle is
(A) Synthesis of glucose
(B) reuse of glucose
(C) uptake of glycose
(D) Both (A) & (B)
292. Cane sugar is known as
(A) Galactose
(B) Sucrose
(C) Fructose
(D) Maltose
293. Which of the following
is not reducing sugar?
(A) Lactose
(B) Maltose
(C) Sucrose
(D) Fructose
294. α−D-Glucose and
β−D-glucose are related by
(A) Epimers
(B) Anomers
(C) Multirotation
(D) Ketoenol pair
295. The stable ring
formation in D-Glucose involves
(A) C-1 and C-4
(B) C-1 and C-2
(C) C-1 and C-5
(D) C-2 and C-5
296. Reduction of Glucose
with Ca++ in water produces
(A) Sorbitol
(B) Dulcitol
(C) Mannitol
(D) Glucuronic acid
297. Starch and glycogen are
polymers of
(A) Fructose
(B) Mannose
(C) α−D-Glucose
(D) Galactose
298. Reducing ability of
carbohydrates is due to
(A) Carboxyl group
(B) Hydroxyl group
(C) Enediol formation
(D) Ring structure
299. Which of the following
is not a polymer of glucose?
(A) Amylose
(B) Inulin
(C) Cellulose
(D) Dextrin
300. Invert sugar is
(A) Lactose
(B) Mannose
(C) Fructose
(D) Hydrolytic product of sucrose
301. The carbohydrate
reserved in human body is
(A) Starch
(B) Glucose
(C) Glycogen
(D) Inulin
302. A dissaccharide linked
by α -1-4 Glycosideic linkages is
(A) Lactose
(B) Sucrose
(C) Cellulose
(D) Maltose
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