LEVEL-I 12.

Glucose reacts with CH3OH is presence of dry

CARBOHYDRATES HCl gas to form
1. To become a carbohydrates, a compound must a)  -methyl glucoside
contain atleast b)  - methyl glucoside
a) 2 carbons b) 3 carbons c) Both a & b d) None of the above
c) 4 carbons d) 6 carbons 13. Methyl  -D- glucoside is actually a
2. A carbohydrate which can not be hydrolysed to a) hemi acetal b) Carboxylic acid
simpler compounds is called c) Acetal d) Amine
a) Monosaccharide b) Disaccharide 14. Glycoside linkage is an
c) Polysaccharide d) oligosaccharide a) Amide linkage b) Ether
3. Monosaccharide contain c) Ester linkage d) None of these
a) Always six carbon atom 15. Glucose fails to react
b) Always five carbon atoms a) Phenyl hydrazine b) NaHSO3
c) Always four carbon atoms c) Tollen’s Reagent d) Fehling solution
d) May contain 3 to 7 carbon atom 16. Invert gas is an equimolar mixture of
4. Which of the following is an example of a) D-glucose and D-fructose
Aldotetrose? b) D-glucose and L-fructose
a) glyceraldehydes b) Ribose c) D-glucose and L-glucose
c) Fructose d) galactose d) D-fructose and L-fructose
5. Which of the following monosaccharide is 17. Total number of Nitrogens present in
pentose? glucosazone molecule
a) Glucose b) Fructose a) 4 b) 2
c) Arabinose d)Galactose c) 6 d) 8
6. Which one is a disaccharide 18. The major component of sugar present in
a) Starch b) lactose honey is
c) Cellulose d) Fructose a) sucrose b) glucose
MONOSACCHARIDES c) invert sugar d) lactose
7. Which of the following osazone with 19. Cellulose is a linear polymer of?
phenylhydrazene? a)  - D-glucose b)  - D-glucose
a) Glucose b) Fructose
c)  -D- fructose d)  -L- glucose
c) Maltose d)All the three above
8. To convert glucose to saccharic acid the reagent 20. Which of the following is the C-2 epimer of D-
used is glucose?
a) Bromine water b) Fehling’s solution a) D-Galactose b) L-Glucose
c) Nitric acid c) D-Fructose d) D-Mannose
d) Alkaline solution of Iodine 21. Which of the following is a non reducing sugar?
9. Reducing agent can reduce a) lactose b) Fructose
a) Aldehydes to alcohols c) cellubiose d) sucrose
b) Ferric salts to ferrous salts 22. Fructose reduces Fehling’s solution due to the
c) Chlorates of chlorides presence of:
d) Fehling solution to cuprous oxide a) hydroxyl group b) Aldehydes group
10. When glucose is reacted with bromine water, c) ketone group d)  -hydroxy ketone group
the major product is 23. The formation of furanose strucuture of
a) Gluconic acid b) Saccharic acid fructose involves the interaction of functional
c) Sorbitol d) Galactose groups present at?
11. The reagent which may be used to distinguish a) C-1 and C-2 b) C-2 and C-6
cane sugar and glucose solutions is c) C-2 and C-5 d) C-1 and C-5
a) I2 soltuion b) Baeyer’s solution 24. D-glucose reacts with anhydrous methyl alcohol
c) Both a & b d) Fehling’s solution in the presence of dry HCl gas to form:
a) 2, 3, 4, 5, 6,-penta –O-methyl D-glucose
1
 b)  -methyl D-glucose D-glucopyranoside 35. D- Alanne differs from L-Alanine with respect to
c)  -methyl D-glucopyranoside a) Configuration b) Chemical formula
d) both b and c c) Number of NH2 groups
25. Glucose gives silver mirror with ammonical d) Number of –COOH groups
silver nitrate because it has: 36. The helical structure of protein is stabilized by:
a)ester group b) aldehyde group a) dipeptide bonds b) hydrogen bonds
c) ketone group d) alcoholic AgNO3 c) ether bonds d) peptide bonds
26. Which is correct statement? VITAMINS
a) starch is the polymer of  -glucose 37. In all green leaves and vegetables, which of the
b) Amylose is a component of cellulose following vitamin is available?
c) proteins are compound of only one type of a) Vitamin A b) Vitamin D
amino acids c) Vitamin K d) Vitamin
d) In cyclic structure of fructose, there are five B12
carbon and one oxygen atom 38. The disease pernicious anaemia is caused by
AMINO ACIDS AND PROTEINS the deficiency of vitamin
27. Number of peptide links in a tripeptide a) A b) K
a) 3 b) 2 c) B1 d) B12
c) 6 d) 4 39. Nutritional muscular dystrophy is due to the
28. Which of the following amino acids possess a deficiency of vitamin
non-polar side chain? a)A b) D
a) isoleucine b) serine c) E d) K
c) cysteine d) glutamic acid 40. The vitamin essential for synthesis of lipids is
29. The amino acid which contains a hydroxyl a) Pantothenic acid b) Pyridoxine
group in the side chain c) Retinol d) Biotin
a) cysteine b) glutamine 41. Hyper glycemia is due to the deficiency of
c) serine d) leucine a) Vitamin B7 b) Vitamin C
30. Which of the following molecules is capable of c) Vitamin B12 d) Vitamin E
forming zwitter ion? 42. Which of the following is Naphthaquinone
a) NH2CH3COOH derivative?
b) CH3COOH a) Vitamin K b) Vitamin D
c)CH3CH2NH2 c) Vitamin A d) Vitamin B5
d) CCl3NO2 43. The vitamin which maintain the redox
31. The sequence in which the amino  -amino potentials of cells is
acids are linked to one another in a protein a) Folic acids b) Ascorbic acids
molecule is called its c) Pyridoixne d) Calciferol
a) primary structure b) secondary 44. The vitamin, which plays a role in
structure transportation, of amino acids across the cell
c) tertiary structure d) quaternary membrane is
structure a) B1 b) B2
32. Which of the following  - amino acids does not c) B2 d)B6
contain a chiral carbon? NUCLEIC ACIDS
a) Glycine b) Cysteine 45. Structure of mRNA
c) Alanine d) leucine a) Linear b) branched
33. A sulphur containing amino acids is c) Single helix d) Double helix
a) Glycine b) Alanine 46. AT/ GC ratio in human being is
c) Phenylalanine d) leucine a) 0.93:1 b) 1:0.93
34. Which of the following is optically inactive c) 1.52:1 d) 0.93:1
a) Glycine b) Lysine 47. GC/ At ratio in E.coli is
c) Alanine d) Isoleucine a)0.93:1 b) 1:0.93
c)1 : 1.52 d) 1.52:1
2
48. The two strands in DNA a a) Estradiol b) Progesterone
a) parallel b) Anti parallel c) Insulin d) Androgens
c) perpendicular d) Any direction 61. The sex hormone which controls the
49. In DNA one strand direction is 5’-3’ the other development and maintenance of pregnancy is
strand is a) Cortisone b) thyroxine
a) 5’-3’ b) 5’-5’ c)progesterone d) Androgens
c)3’-3’ d) 3’-5’ 62. Which one is a female sex hormone
50. In DNA the base particulars were arranged with a) Estrogen b) Estradiol
helix is c) Progesterone d) All of the above
a) parallel b) Anti parallel 63. The hormone that plays an important role in
c) perpendicular d) Any direction the control of ‘menstrual cycle’ is the
51. The base pair in helix is a) Progesterone b) Estradiol
a) planar and parallel c) Testosterone d) Prostaglandins
b) planar and antiparallel 64. The hormones that have ‘Anti inflammatory’
c) Planar and perpendicular effect are the
d) Planar and planer a) Thyroxine b) Insulin
52. No. of hydrogen bonds present between G and C c) Gluco corticoids d) Auxins
a) 2 b) 3 65. Consider the following statements regarding
c) 1 d) 0 the methyl glucosides obtained by the reaction
53. The RNA’s which take part in the synthesis of of D-glucose with methanol in the presence of
proteins dry HCl gas?
a) m-RNA b) r-RNA a)These are methyl ester of hemiacetal of
c) t-RNA d) All the three above glucose formed by intramolecular reaction
HORMONES b) These are enantiomers
54. Which of the following hormones helps in the c) These are anomers
conversion of glucose into Glycogen in the d) In one of these, all the substituents are
body? equatorial. Which of the above statements are
a)Insulin b) Cortisone correct
c) Thyroxine d) Oxytocin a) a & c b) b & c
55. The disease Diabetes mellitus is caused by the c) b, c & d d) a, c & d
deficiency of 66. Assertion (A) :- All monossacharides are sweet
a) Iodine b) Insulin in taste
c) Phenyl alanine Hydroxylase Reason (R); All monosaccahrides have the
d) Lysine general formula, C6H12O6
56. The hormone used as an oral contraceptive is 1) A and R are true And R is correct explanation
a) Aldosterone b) Cortisone of A
c) Progesterone d) Testosterone 2) A and R are true and R is not correct
57. The hormone insulin is a secretion of the organ explanation of A
a) Ovary b) Testis 3) A is true but R is false
c) Adrenal cortex d) Pancreas 4) A is false R is true
58. The chemical messengers produced in ductless 67. Match the following
glands are List –I List-II
a) Vitamins b) Lipids (Name of the sugar) (Hydrolysis
c) Antibiotics d) Hormones products)
59. The muscular physique of a male is due to A)Sucrose i)Glucose+fructose+
the influence of the hormone called galactose
a) testosterone b) Estradiol B) lactose ii) Glucose + fructose
c) Progesterone d) estrone C) Maltose iii) Glucose + Galactose
60. The hormone that prepares the uterus for the D) Raffinose iv) Glucose + Glucose
implantation of the embryo is The correct matching is
3
 A B C D A B C D 1) A and R are true And R is correct explanation
1) iii ii i iv 2) ii iii i iv of A
3) iv iii iv i 4) ii iv iii i 2) A and R are true and R is not correct
68. Match the following explanation of A
List –I (Sugar) List-II (TYPE) 3) A is true but R is false
A) Glucose i) Keto hexose 4) A is false R is true
B) Fructose ii) Aldo hexose 73. Match the following
C) Arabinose iii) Aldotetrose List –I (Reactants) List-II (Products)
D) Erythrose iv) Aldopentose A) Glucose + HI i) gluconic acid
The correct matching is B) Glucose + ii) n-hexane
Phenylhydrazine
A B C D A B C D C)Glucose +Br2 –Water iii) Osazone
1) iii ii i iv 2) ii iii i iv D) Glucose +HNO3 iv) Saccahric acid
3) ii iii iv i 4) ii i iv iii The correct matching is
A B C D A B C D
69. Assertion (A) :  -D-glucose and  -D- glucose
1) iii ii i iv 2) ii iii i iv
are isomers.
3) i iii ii iv 4) ii iii iv i
Reason(R): These are mirror images and super
imposable. 74. List –I List-II
1) A and R are true And R is correct explanation A)  and  Glucose 1) Muta rotation
of A B) (+) and (-)-Glucose 2) Enantiomers
2) A and R are true and R is not correct C) D and L notation 3) Anomers
explanation of A D)  form open chain  4)Configurational
3) A is true but R is false A B C D A B C D
4) A is false R is true 1) 2 3 4 1 2) 2 3 1 4
70. Match the following 3) 3 2 4 1 4) 3 2 1 4
List –I List-II 1) A and R are true And R is correct explanation
A) Aldopentose i) D-Glucose and L- of A
Glucose 2) A and R are true and R is not correct
B) Anomers ii) Ribose explanation of A
C) enantiomers iii)  -D-Glucose and  - 3) A is true but R is false
D- Glucose 4) A is false R is true
D) Functional isomers iv) Glucose and 75. Assertion (A): maltose is a reducing sugar.
Fructose Reason(R): Both glucose units are in pyranose
The correct matching is form
A B C D A B C D 76. Assertion (A): Sucrose is a reducing sugar.
1) ii iii i iv 2) ii iii iv i Reason (R): In Sucrose glucose unit has
3) iii ii i iv 4) ii i iii iv pyranose form and fructose unit has furanose
71. Assertion (A): D-Glucose is dextro rotatory form
where as L-Glucose is laevo rotatory. 77. Assertion (A): Sucrose is a reducing sugar
Reason (R) : NH3 is a lewis acid where as maltose is non-reducing sugar
1) A and R are true And R is correct explanation Reason(R): in dissacccharides the reducing
of A property depends upon the position of linkages
2) A and R are true and R is not correct between the two monosaccharides units
explanation of A 78. Assertion (A): Sucrose on hydrolysis gives
3) A is true but R is false glucose and fructose.
4) A is false R is true Reason (R): The formula of sucrose is C12H22O11.
72. Assertion (A): Glucose does not react with NH3 79. Assertion (A): Lactose is also known as milk
Reason (R) : NH3 is a Lewis acid. sugar.
Reason(R): Lactose occurs in milk.

4
80. Match the following The correct statements are
List –I List-II (Monomar) a) I, II and IV b) I, II and III
A) Sucrose i)  -D- Galactose and  -D- c) II, III and IV d) All
Glucose 86. Consider the statements
B) Cellulose ii)  -D- Glucose and  -D- I. Dextrin and Glycogen are polysaccharides
II. Lactose and Glucose are disaccharides
Fructose
III. Sucrose and maltose are disaccharides
C) Starch iii)  -D- Glucose
IV. Raffinose is oligosaccharide
D) lactose iv)  -D- Glucose
The incorrect statements are/is
The correct matching is
a) only I b) I and II
A B C D A B C D
c) I, II and III d) IV only
1) i ii iii iv 2) ii iii iv i
87. Consider the statements about poly saccharides
3) i ii iv iii 4) iv iii i ii
I. These are amorphous solids
81. Which of the following statements is/ are
II. These are sparingly soluble in water
incorrect?
III. These are sugars
I) Glucose is non reducing sugar
The incorrect statements are/is
II) Sucrose is reducing sugar
a) only III b) II and III
III) Maltose is non reducing sugar
c) I and III d) All
IV) Lactose is non reducing sugar
88. Which of the following statements is /are
a) I and II b) I and III only
correct?
c) I and IV only d) All
I.Glucose is present in grapes and honey
82. Which of the following statements is/ are
II. Sucrose is widely present in the plants
correct?
III. lactose occurs in milk
I) the formula of cellulose is (C6H10O5)n
a) only I and II b) II and III
II) the formula of sucrose, maltose and lactose
c) I and III d) All
is C12H22O11
89. Which of the following statements is not
III) The formula of Glucose, Fructose of C6H10O6
correct?
IV) the formula of Fructose of C6H12O6
a) amino acids can exist as inner salt
a) All b) I, II and IV
b) each polypeptide has one C-terminal and
c) II, III and IV d) I, III and IV
other N-terminal
83. Consider the following statements
c) enzymes are naturally occurring simple
I) The  D of sucrose is +66.50 proteins
II) The  D of  -D- Glucose is +52.50 d) the union one two amino acids produces two
peptide linkages
III) The  D of  -D- Fructose is +92.40 90. Choose the correct statement from the
The correct statements is/ are following
a) I, II and III b) only I a) All amino acids have common isoelectric
c) only III d) I and III point
84. Consider the statements b) All naturally occurring –amino acids are
I. D-Glucose is dextro rotatory optically active except glycine
II. D-Fructose is leavo rotatory c) At pH=0 all amino acids are resent as their
III. Sucrose is dextro rotatory anions
The correct statements is/ are d) in strongly basic solutions, all amino acids
a) I, II and III b) I and II only are present as their cations
c) II and IIIonly d) I and II only 91. Which statement is incorrect about peptide
85. Consider the statements bond?
I. Maltose is also known as malt sugar a) C- N bond length in proteins is longer than
II. Sucrose is also known as cane sugar usual bond length of C-N bond
III. lactose is also known as grape sugar b) Spectroscopic analysis shows planar
IV. Starch is also known as Amylum structure of CO-NH- group
5
 c) C-N bond length in proteins is smaller than a) vitamins in the human body are needed in
usual bond length of C-N bond large amounts
d) All the above b) Vitamins are secreted by ductless glands
92. Which one of the following statements about c) Vitamins are synthesized by an organism
proteins is wrong? d) Vitamins A, D, E and K are fat soluble
a) Protein occur in all living cells whereas vitamins of the group and vitamin C
b) Proteins generally contain nitrogen, carbon are water soluble
and hydrogen 98. Which of the following statements about
c) Hydrolysis of proteins in acidic aqueous vitamin B12 not correct?
d) their solublities reach minimum value at the a) It has a cobalt atom
iso electric points b) It also occurs in plants
93. Which of the following statements is not c) It is present in rain water
correct? d) It is needed for human body in very small
a) Proteins are poly amides formed from amino amounts
acids 99. Which of the following statements is not
b) Except glycine, all other amino acids show correct?
optical activity a) vitamin-A is also known as retinol
c) Natural proteins are made up of L-isomers of b) In carrots a red coloured compound
amino acids (carotene) in the body breaks into vitamin-C
d) In amino acids –NH2 and –COOH groups are c) Vitamin- A is essential for growth and vision
attached to different carbon atoms d) Vitamin –A is a fat soluble vitamin
94. Which of the following statements is not 100. Which of the following statements is
correct? incorrect?
a) In nature about 20 amino acids occur in a) Calciferol contains sterol consisiting of 4
proteins rings and a side chain
b) The human body can synthesis all 20 amino b) Vitamin E contains chromone ring with 3-
acids occurring in proteins methyl groups
c) The simplest amino acids c) Thiamine contains dipeptide structure
95. Which of the following statements is not d) Nicotinic acid is pyridine acid
correct? 101. Identify the correct statements
a) The tertiary structure of proteins is three a) deficiency of vitamin A causes xerophthalmia
dimensional b) The function of vitamin C is maintainance of
b) In globular proteins, nearly all the redox potentials of cells.
hydrophobic groups are hidden inside and the c) Viamin B-12 contain ionone ring
polar groups are present on the surface d) Folic acid (vitamin B9) consists of corrin ring
resulting into a spherical shape the correct statements are
c) Only hydrogen bonds are involved in the a) a b) a & b
tertiary structure of proteins c) a, b & c d) All
d) Globular proteins are insoluble in water 102. Read the following statements and choose the
96. Which of the following statements is not correct one?
correct? a) Vitamin K is Napthaquinone derivative
a)A peptide bond is –CO-NH- b) the condition of vitamin deficiency is known
b) Each polypeptide has one C-terminal and the as pellagra
other N-terminal c) Pentothenic acid is pyridine derivative
c) The amino acid the function of the protein d) The deficiency of vitamin E causes BeriBeri
d) The union of two amino acids produces two 103. Which of the following is incorrect?
peptide linkages a) Vitamin B3 is present in all food stuffs
97. Which one of the following is true about b) Liver of OX contains vitamin B12
vitamins? c) Vitamin H present in milk
d) Citrus fruits mostly contain Vitamin H
6
104. The correct statements is / are? B) C =O and –NH of different peptide chains are
a) Vitamins in high concentrations catalyse held by Vanderwaal attractions
biological reactions C) Closely packed arrangement so as to
b) Daily dose of vitamins for an individual minimise repulsion between ‘’R’’ groups
depend on his or her age, size and rate of a) Only C b) Only B
metabolism c) A and B d) Only A
c) Youngsters need higher quantities of 109. Assertion (A); All natural –amino acids are not
vitamins than elders constituents of proteins.
d) the need of vitamin for younger, growing Reason (R): Proline and hydroxyproline are
children and pregnant women is lower iminoacids, not amino acids.
a) a, b b) b, c 1) A and R are true And R is correct explanation
c) a, d d) c, d of A
105. Which of the following statements is not 2) A and R are true and R is not correct
correct? explanation of A
a) All enzymes found in cells are invariably 3) A is true but R is false
proteins which catalyses biological reactions 4) A is false R is true
b) Enzymes act efficiently at a moderate 110. Assertion (A): Amino acids are generally
temperature and pH obtained by acid or enzyme hydrolysis of
c) Co-enzymes increase the activities of proteins but not by alkaline hydrolysis
enzymes Reason(R) : An alkali racemises amino acids
d) Enzymes are not specific in their action on 1) A and R are true And R is correct explanation
substrates of A
106. Assertion (A):  -amino acids are the building 2) A and R are true and R is not correct
blocks of proteins. explanation of A
Reason (R): Natural amino acid are mostly  - 3) A is true but R is false
amino acids. 4) A is false R is true
1) A and R are true And R is correct explanation 111. Assertion (A): Lysine, cysteine and threonine
of A are highly soluble in water but serine and valine
2) A and R are true and R is not correct are slightly soluble
explanation of A Reason(R) : Additional polar groups, such as –
3) A is true but R is false OH, -NH2 and –COOH increase the solubility in
4) A is false R is true water appreciably.
107. Which of the following is true of A & B 1) A and R are true And R is correct explanation
A- Globular Protein B- Fibrous Protein of A
a. These are linear condensation Polymers 2) A and R are true and R is not correct
b. Insoluble in water explanation of A
c. These are proteins have three dimensional 3) A is true but R is false
folded structure 4) A is false R is true
d. These are cross linked Protein 112. Match the following:
e. Soluble in water List-I List-II
f. These are held together by intermolecular A) Vitamin A 1) Calciferol
hydrogen bond. B) Vitamin D 2) Tocopherol derivative
a) A = a b c, B = d e f C)Vitamin E 3) retinol
b) A = d b c, B = a b f D) Vitamin K 4) Anti haemorrhagic
c) A = b c a, B = c b f 5) Thymine
d) A = a e f, B = b c f The correct match is
108. Regarding secondary structure of a protein, a) A-3, B-1, C-2, D-4
correct statements is / are: b) A-3, B-1, C-2, D-5
A) peptide bonds possess regional planarity c) A-3, B-1, C-4, D-2
d) A-1, B-3, C-2, D-4
7
113. Match the following: 3) A is true but R is false
List-I List-II 4) A is false R is true
A) Vitamin – B1 1)Riboflavin 118. Which of the following is the incorrectly
B) Vitamin - B2 2) Pantothetic matched
C) vitamin –B3 3) Niacin a) Niacin – Nictinamide
D) Vitamin-B5 4) thymine b) Vitamin B3 - Dipeptide
The correct match is c) Vitamin K - Flavin derivative
a) A-4, B-1, C-3, D-2 d) Vitamin B12 - Resembles Heme
b) A-4, B-1, C-2, D-3 119. Match the following:
c) A-3, B-4, C-2, D-1 Set- A Set-B
d) A-4, B-3, C-1, D-2 A) Replication 1) Formation of RNA from
114. Match the following: DNA
List-I List-II B) Transcription 2) Synthesis of copy of DNA
A) Vitamin – B7 1)Ascorbic acid C) Translation 3) Single strand of DNA
B) Vitamin – B9 2) Cyanobalamine C) Template 4) Synthesisi of proteins by
C) Vitamin –B12 3) Folic acid RNA
D) Vitamin- C 4) Biotin The correct match is
The correct match is A B C D A B C D
a) A-1, B-2, C-3, D-4 a) 4 3 2 1 b) 1 2 4 3
b) A-4, B-2, C-3, D-1 c) 2 1 4 3 d) 2 1 3 4
c) A-1, B-3, C-2, D-4 120. The stability of double helix is due to
d) A-4, B-3, C-2, D-1 a) Presence of hydrogen bonds
115. Assertion (A) : Pyroxidine is water soluble b) Presence of Hydrophobic interaction
vitamin c) Presence of hydrophilic interaction
Reason (R) : Pyridoxine contain chromone rimg d) Vanderwaal force
with 3 – methyl groups Find the correct statement
1) A and R are true And R is correct explanation a) a only b) a, b only
of A c) a, b, c only d) a, b, c and d
2) A and R are true and R is not correct 121. Chargaff’s rule states that in an organism
explanation of A a) Amount of adenine (A) is equal to that of
3) A is true but R is false guanine (G) and the amount of thymine (T) is
4) A is false R is true equal to that of cytosine(C)
116. Assertion (A) : The deficiency of vitamin D b) Amount of adenine (A) is equal to that of
causes sterility cytosine (C) and the amount of thymine (T) is
Reason (R): The function of vitamin D is normal equal to that of guanine (G)
development of bones and teeth c) Amount of all bases are equal
1) A and R are true And R is correct explanation d) Amount of adenine (A) is equal to that of
of A thymine (T) and the amount of guanine (G) is
2) A and R are true and R is not correct equal to that of cytosine(C)
explanation of A 122. In a protein, the different types of attraction
3) A is true but R is false that exist are
4) A is false R is true A) H-bonding B) hydrophobic
117. Assertion (A): the deficiency of vitamin B12 C) ionic D) covalent
causes hyperglycemia a) B, C and D only b) A, C and D only
Reason (R): the function of vitamin B12 is c) A, B and C only d) A, B, C and D
synthesis of lipids from carbohydrates
1) A and R are true And R is correct explanation
of A
2) A and R are true and R is not correct
explanation of A
8
 6. Which of the following carbohydrates is the
essential constituent of all cell wall?
LEVEL –I (C.W) –KEY a) Starch b) Maltose
c) Cellulose d) Sucrose
1. b 2. a 3. d 4. d 5. c 7. The reagent which may be used to distinguish
6. b 7. d 8. c 9. d 10. a cane sugar and glucose solutions is
11. d 12. c 13. a 14. b 15. b a) I2 solution b) Baeyer’s reagent
16. a 17. a 18. c 19. b 20. d c) Both a & b d) Fehling’s solution
21. d 22. d 23. c 24. d 25. b 8. Five membered ring structure of glucose is
26. a 27. b 28. a 29. c 30. a
known as
31. a 32. b 33. b 34. a 35. a
36. b 37. c 38. d 39. c 40. d a) Aromatic b) Furanose
41. c 42. a 43. b 44. d 45. a c) Pyranose d) Baeyer’s solution
46. c 47. b 48. b 49. d 50. c 9. In the ring structure of fructose, the anomeric
51. a 52. b 53. d 54. a 55. b carbon is
56. c 57. d 58. d 59. a 60. b a) C-1 b) C-2
61. c 62. d 63. b 64. c 65. a c)C-5 d) C-6
66. c 67. c 68. d 69. c 70. a 10. Starch consists of two polymeric units, namely
71. c 72. c 73. b 74. c 75. b a) cellulose and cellobiose
76. d 77. d 78. b 79. a 80. b
b) glycogen and collagen
81. d 82. b 83. b 84. a 85. a
c) amylase and amyloprotein
86. a 87. a 88. c 89. d 90. b
91. a 92. d 93. d 94. b 95. c d) insulin and pectin
96. d 97. d 98. b 99. b 100. c 11. On hydrolysis of starch, we finally get:
101. a 102. d 103. b 104. d 105. b a) glucose b) fructose
106. b 107. d 108. b 109. a 110. a c) glucose and fructose both d) sucrose
111. a 112. b 113. b 114. d 115. d 12. Which of the following is the most abundant
116. d 117. b 118. c 119. c 120. b carbohydrates found in plants?
121. d 122. d a) cellulose b) starch
c) Lipids d) Fructose
AMINO ACIDS AND PROTEINS
LEVEL-I(HW)
13. The number of amino acids in insulin is
CARBOHYDRATES
a) 21 b) 574
1. Which of the following is a ketohexose?
c) 51 d) 5733
a) Fructose b) Glucose
14. Which of the following amino acids does not
c) Ribose d) Starch
correspond to the general formula given below?
2. Which of the following?
R-CH(NH2)-COOH
a) Sucrose b) Glucose
a) Cysteine b) proline
c) fructose d) Starch
c) Argenine d) Glutamic
3. Which of the following is an example of
acid
aldotriose?
15. The amino acids are the end products of the
a) Glyceraldehyde b) Ribose
digestion of,
c) Fructose d) Erythrose
a) Lipids b) Ftas
4. Which of the following is a disaccharide?
c) Proteins d) Enzymes
a) Glucose b) Fructose
ENZYMES
c) Sucrose d) Starch
16. Deficiency of vitamin e causes
5. Which of the following is an example of
a) Night blindness b) Loos of fertility
aldepentose?
c) Scurvy d) Impaired clotting
a) Glyceraldehyde b) Ribose
17. Which one of the following is synthesized in or
c) Fructose d) Erythrose
body by sun rays?
MONOSACCHARIDES
a) Vitamin D b) Vitamin B
c) Vitamin K d) Vitamin A
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18. All Vitamins are synthesised by?
a) Plants b) Human beings
c) Fishes d) All
NUCLEIC ACIDS
19. The carbohydrates present in DNA is
a) L-glucose b) d-ribose
c) 2-Deoxyribose d) fructose
LEVEL-I(HW)-keys
1. a 2. d 3. a 4. c 5. b
6. c 7. d 8. b 9. b 10. c
11. a 12. a 13. c 14. b 15. c
16. b 17. a 18. a 19. c

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