1. Match the following
List – I
List – II
A) Peptide bond
I) 1st carbon of pentose with N2 base in
nucleoside
B) Glycosidic bond
II) COOH of one amino acid with NH2 of next amino acid in
polypeptide
C) Phospho-ester bond III) Between A
and T, G and C of ds D.N.A
D) Hydrogen bonds IV)
Between carbon and carbon of sugars in polysaccharides
V) Between phosphate group and OH of 5th
carbon (or) 3rd carbon of
sugar in nucleotides
The correct match is
A B C D A B C D
1) II IV V I 2) II IV V III
3)
II III IV V 4) II I IV III
2. The anabolic pathways of the following
are
A) Conversion of glucose to lactic
acid B) Conversion of acetic
acid to cholesterol
C) Conversion of glucose to CO2
and H2O D) Formation of
sucrose from CO2 and H2O
1)
A, B 2) C, D 3) A, C 4) B, D
3. The living state is a non-equilibrium
steady state to be able to perform work and it is achieved by
1)
Interlinked pathways 2)
Input of energy
3)
Inter conversion of metabolites 4)
None
4. Elemental
analysis of a leaf tissue reveals the presence of
1)
Simple acid – soluble organic molecules
2) Inorganic compounds like
sulphates, phosphates etc.
3) Elements like C, H, O, Cl
etc. 4) Only
elements essential to plants
5. Study
the following lists with reference to amino acids.
List
– I List
– II
A.
Hydroxymethyl group I. Valine
B.
Acidic II.
Cytidylic acid
C.
Neutral III.
Tyrosine
D.
Aromatic IV.
Serine
V.
Glutamic acid
Correct
match is.
A B C D A
B C D
1) IV
V I III 2) IV
V I II 3)
IV V II
I 4) IV
I II III
6. Assertion
(A): 
and COOH groups of
amino acids are ionizable.
and COOH groups of
amino acids are ionizable.
Reason (R): In solutions of
different 
s, the structure of
amino acids changes.
s, the structure of
amino acids changes.
1)
Both A and R are true and R is the correct explanation of A 2)
Both A and R are true and R is not the correct explanation of A 3)
A is true but R is false 4) A is false
but R is true
7. A
triglyceride consists of
1)
Three glycerols esterified to each other 2)
Three fatty acids esterified to a glycerol molecule
3)
Three glycerols esterified to one fatty acid molecule 4) Three fatty acids esterified to each
other
8. No.
of carbon atoms in palmitic acid is
1)
20 2) 19 3) 18 4) 16
9. A
mineral element found in Lecithin is
1)
Mg 2) Ca 3) P 4) N
10. Study
the following lists.
List
– I List
– II
A.
Morphine I)
Toxin
B.
GLUT – 4 II)
Drug
C.
Curcumin III)
Alkaloid
D.
Ricin IV)
Sensory receptor
V)
Glucose transport (protein)
Correct
match is
A B C D A
B C D
1) III
V II IV 2) III
V II I 3)
III I II
III 4) II
III I IV
11. Assertion
(A): Lipids are actually micromolecules but get separated along with the acid
insoluble fraction.
Reason (R):During grinding of a
tissue, lipid molecules present in cell membranes are broken into fragments and
form vesicles and go into the retentate.
1) Both A and R are true and R is the
correct explanation of A 2)
Both A and R are true and R is not the correct explanation of A 3)
A is true but R is false 4) A is false
but R is true
12. Which
of the following is true for proteins?
1)
A component of the retentate 2)
Homopolymers 3) Branched chains of amino acids 4) Each protein
contains 21 types of amino acids
13. Choose
the mismatch
1)
Insulin – Polymer of amino acids 2)
Inulin – Polymer of galactose 3) Chitin – Heteropolymer 4)
Cellulose – Doesn`t hold 
14. Assertion (A): Starch is a blue coloured
polysaccharide.
Reason (R): It contains in its helices.
in its helices.
1)
Both A and R are true and R is the correct explanation of A 2)
Both A and R are true and R is not the correct explanation of A 3)
A is true but R is false 4) Both
A and R are false
15. Each
subunit of human haemoglobin molecule shows.
1)
Quaternary structure 2)
Secondary structure 3)
Tertiary structure 4) Primary
structure
16. Which
of the following statements are true ?
I)Majority of
metabolic reactions occurs in isolation but are not always linked to some other
reactions
II)Living state
is non-equilibrium steady state
III)Biomolecules
of a cell have a turnover
IV) Backbone of
DNA is formed by the alternate linkages between sugar and nitrogen bases
1)I II III & IV 2)II & III 3)II & IV 4)I II & IV
17. Find
the number of hydrogen bonds and phosphodiester bonds present between the
nucleotides, which are present in the
DNA having 119A0 units length and 18 Thymine bases in it
1)70,70 2)70,69 3)87,68 4)87,70
18. Aromatic amino acids are
A. Glycine B.
Tyrosine C. Tryptophan D. Pheneramine
1) A & B only 2) C & D only 3) B & C only 4) B, C & D
19. Trihydroxy propane is
1) Palmitic acid 2) Arachidonic acid 3) Glycerol 4) Glycine
20. Choose the incorrect match
1) Drug – Concanavalin-A 2) Polymer – Gum
3) Uredine – Nucleoside 4) Receptor –
Protein
21. It enables glucose transport into cells
1) Collagen 2) Vinblastin 3)
GLUT-4 4) Concanavalin -A
22. Choose the correct combinations
A. Collagen – intracellular ground
substance - protein
B. Rubber – Polymeric substance –
Secondary metabolite
C. Cellulose – Complex helical
structure – Polysaccharide
D. Haemoglobin – Quatenary structure -
Protein
1) A & B only 2) B & D only 3) A & C only 4) A, B, C & D
23. Which statements of the following are wrong .
i) No uncatalysed
metabolic conversions in living system.
ii) Living state is a
non – equilibrium steady state to be able to perform work.
iii) Peptide bond
formation and glycoside bond formations are dehydration reactions.
iv) Ester bonds
present between nucleotide pairs of opposite strands of DNA
1) only iii 2) i,iii&iv 3) only iv 4) only ii
24. A DNA molecule is
having 15% cytidylic acid molecules. In that number of hydrogen bonds in
between polynucleotide strands are 460. Estimate the length of that
DNA.
1) 340 
2) 680 3) 510 4)
Data is not sufficient
2) 680 3) 510 4)
Data is not sufficient
25. Choose correct
concept
1. In a metabolic
path way in which glucose is converted into lactic acid Occurs in eight
metabolic steps.
2. In a DNA molecule
two strands of poly nucleotides are parallel and complementary to each other
3. The back bone of
DNA is formed by sugar – phosphate – Nucleotide chain.
4. In a cell living process is a
constant effort to prevent falling in to equailibrium.
26. Bio-energetics
deals about
1. The total sunlight energy trapping
mechanism in organism in nature in
detail
2. The energy conversations which are occurring out side of the
earth planet.
3. Energy transfer from non-living things to living things
4. How living organisms derive their
energy, on what way they store, how do they convent energy in to work.
27. Concanavalin
A belongs to one of the following metabolites
1)
Alkaloids 2) Terpenoides 3) Lectins 4) Essential oils
28. Match the
following correctly.
List
– I List
– II
A)
Peptide bond I) Phosphate group and sugar
B)
Glycosidic bond II)
COOH group of one amino acid and amino group of next
amino acid
C)
Ester bond III)
Two adjacent monosaccharides of a Poly saccharide
D)
Hydrogen bond IV) A purine
and a pyrimidine of a complimentary base pair
A B C
D A B C D
1)
I
III II
IV 2)
II III IV I
3)
II III
I IV 4) IV III II III
29. Observe the following
structure
If ‘R’ group of the above amino acid
is replaced by ‘H’, it results
1)
Alanine 2) Glycine 3) Tyrosine 4) Phenylalanine
30. Find the incorrect statement
from the following
1)
Amino acids are substituted methanes
2)
Chemical and physical properties of aminoacids essentially depends on their
amino, carboxyle and the R- functional groups
3) When a tissue is analysed for
its chemical composition, sulphates and phosphates are observed only in the
acid soluble fraction
4)
Relative abundance of carbon and hydrogen with respect to other elements is
higher in any living organism than in earth’s crust
31. Study the following
ionizable states of amino acids
Find
the zwitter ionic form from the above states
1)
X 2)
Y 3) Z 4) X,Y,Z
32. Identify the molecule which is not a
heteropolymer
1)
Nucleic acid 2) Protein 3) Chitin 4) Cellulose
33. Protein that acts as a hormone is
1)
Insulin 2) GLUT – 4 3) Trypsin 4) RUBISCO
34. Structure of protein suitable for performing
biological activities are
1)
Quaternary structure 2) Tertiary
structure 3) Secondary structure 4) Primary structure
35. Choose the correct feature about
biomacromolecules
1)
Molecular weight is less than one thousand Daltons
2)
Found in acid insoluble fraction
3)
Includes lipids which are polymers 4)
Found in plant ashes
36. Choose
the correct match in relation to the substances and their functions
1) Antibody – Fights infectious
agents 2) Collagen –
Ground substance in plant cells
3) Insulin – Enzyme related to glucose
metabolism 4) GLUT – 4 – Enables cells to
synthesize glucose
37. Assertion
(A) : Starch – I2 is blue as starch can hold I2 molecules
but cellulose cannot hold I2
Reason (R) : Starch is a homopolymer
whereas cellulose is a heteropolymer
1) Both A and R are correct and R is the correct
explanation of A.
2)
Both A and R are correct but R is not the correct explanation of A.
3)
A is True but R is False. 4)
R is True but A is False.
38. Correct
statement about complex polysaccharide chitin is
I)
It is present in animal cell walls
II)
It is present in exoskeleton of arthropoda
III)
It is a heteropolymer
IV)
Amino sugars and other modified sugars are its building blocks
1) I, II, III, IV 2) All except I 3) II, III only 4) I, IV only
39. Monomers in proteins, nucleic acids and
polysaccharides are made of these structural units respectively
1) Peptides, nucleotides,
monosaccharides 2) Amino
acids, sugars, nucleotides
3) Amino acids, nucleotides,
monosaccharides 4) Amino acids,
nucleosides, starch
40. Choose
the correct set of components found in a nucleotide
1) Homocyclic compound, penta
saccharide, phosphate
2) Heterocyclic compound,
pentose sugars, phosphoric acid
3) Homocyclic compound, monosaccharide,
phosphoric acid
4) Nitrogen bases, polysaccharide,
phosphate
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