AIPMT previous year question papers

#11 May 30th, 2014, 09:29 AM

I want to give the exam of All India Pre-Medical / Pre-Dental Entrance Test and for that I need to get the previous year question papers so can you provide me that?

Sashwat · #12 May 30th, 2014, 02:59 PM

As you want to get the previous year question papers of All India Pre-Medical / Pre-Dental Entrance Test so here is the information of the same for you:

Some content of the file has been given here:

1. Which two of the following five physical parameters have the same dimensions?
(a) energy density
(b) refractive index
(c) dielectric constant
(d) Young's modulus
(e) magnetic field
(1) (a) and (e)
(2) (b) and (d)
(3) (c) and (e)
(4) (a) and (d)
2. If the error in the measurement of radius of a sphere is 2%, then the error in the
determination of volume of the sphere will be
(1) 2%
(2) 4%
(3) 6%
(4) 8%
3. The distance travelled by a particle starting from rest and moving with an acceleration
in the third second is
(1)
(2) 6 m
(3) 4 m
(4)
4. A particle moves in a straight line with a constant acceleration. It changes its velocity
from 10 ms-1 to 20 ms-1 while passing through a distance 135 m in t second. The value of
t is
(1) 9
(2) 10
(3) 1.8
(4) 12
5. A particle shows distance-time curve as given in this figure. The maximum
instantaneous velocity of the particle is around the point
(1) A
(2) B
(3) C
(4) D
6. A particle of mass m is projected with velocity v making an angle of 45o with the
horizontal. When the particle lands on the level ground the magnitude of the change in its
momentum will be
(1) zero
(2) 2 mv
(3)
(4)
7. Sand is being dropped on a conveyor belt at the rate of M kg/s. The force necessary to
keep the belt moving with a constant velocity of v m/s will be
(1) Zero
(2) Mv newton
(3) 2 Mv newton
(4)
8. Three forces acting on a body are shown in the figure. To have the resultant force only
along the y-direction, the magnitude of the minimum additional force needed is
(1)
(2) 0.5 N
(3) 1.5 N
(4)
9. Water falls from a height of 60 m at the rate of 15 kg/s to operate a turbine. The
losses due to frictional forces are 10% of energy. How much power is generated by the
turbine? (g = 10 m/s2)
(1) 7.0 kW
(2) 8.1 kW
(3) 10.2 kW
(4) 12.3 kW
10. A shell of mass 200 gm is ejected from a gun of mass 4 kg by an explosion that
generates 1.05 kJ of energy. The initial velocity of the shell is
(1) 120 ms-1
(2) 100 ms-1
(3) 80 ms-1
(4) 40 ms-1
11. The ratio of the radii of gyration of a circular disc to that of a circular ring, each of
same mass and radius, around their respective axes is
(1)
(2)
(3)
(4)
12. A thin rod of length L and mass M is bent at its midpoint into two halves so that the
angle between them is 90o. The moment of inertia of the bent rod about an axis passing
through the bending point and perpendicular to the plane defined by the two halves of the
rod is
(1)
(2)
(3)
(4)
13. A roller coaster is designed such that riders experience ''weightlessness'' as they go
round the top of a hill whose radius of curvature is 20 m. The speed of the car at the top
of the hill is between
(1) 13 m/s and 14 m/s
(2) 14 m/s and 15 m/s
(3) 15 ms/ and 16 m/s
(4) 16 m/s and 17 m/s
14. If Q, E and W denote respectively the heat added, change in internal energy and the
work done in a closed cycle process, then
(1) Q = 0
(2) W = 0
(3) Q = W = 0
(4) E = 0
15. On a new scale of temperature (which is linear) and called the W scale, the freezing
and boiling points of water are 39o W and 239o W respectively. What will be the
temperature on the new scale, corresponding to a temperature of 39o C on the Celsius
scale?
(1) 139o W
(2) 78o W
(3) 117o W
(4) 200o W
16. At 10oC the value of the density of a fixed mass of an ideal gas divided by its pressure
is x. At 110oC this ratio is
(1)
(2) x
(3)
(4)
17. Two Simple Harmonic Motions of angular frequency 100 and 1000 rad s-1 have the
same displacement amplitude. The ratio of their maximum accelerations is
(1) 1 : 104
(2) 1 : 10
(3) 1 : 102
(4) 1 : 103
18. The wave described by where x and y are in meters and t in
seconds, is a wave travelling along the
(1) -ve x direction with amplitude 0.25 m and wavelength = 0.2 m
(2) -ve x direction with frequency 1 Hz
(3) +ve x direction with frequency Hz and wavelength = 0.2 m
(4) +ve x direction with frequency 1 Hz and wavelength = 0.2 m
19. A point performs simple harmonic oscillation of period T and the equation of
motion is given by x = a sin(wt + /6). After the elapse of what fraction of the time
period the velocity of the point will be equal to half of its maximum velocity?
(1)
(2)
(3)
(4)
20. Two points are located at a distance of 10 m and 15 m from the source of oscillation.
The period of oscillation is 0.05 sec and the velocity of the wave is 300 m/sec. What is
the phase difference between the oscillations of two points?
(1)
(2)
(3)
(4)
21. The velocity of electromagnetic radiation in a medium of permittivity 0 and
permeability 0 is given by
(1)
(2)
(3)
(4)
22. Two periodic waves of intensities I1 and I2 pass through a region at the same time in
the same direction. The sum of the maximum and minimum intensities is
(1) 2(I1 + I2)
(2) I1 + I2
(3)
(4)
23. Two thin lenses of focal lengths f1 and f2 are in contact and coaxial. The power of
the combinations is
(1)
(2)
(3)
(4)
24. A boy is trying to start a fire by focusing Sunlight on a piece of paper using an
equiconvex lens of focal length 10 cm. The diameter of the Sun is 1.39 × 109 m and its
mean distance from the earth is 1.5 × 1011 m. What is the diameter of the Sun's image on
the paper?
(1) 12.4 × 10-4 m
(2) 9.2 × 10-4 m
(3) 6.5 × 10-4 m
(4) 6.5 × 10-5 m
25. The energy required to charge a parallel plate condenser of plate separation d and
plate area of cross-section A such that the uniform electric field between the plates is E,
is
(1)
(2)
(3)
(4)
26. A thin conducting ring of radius R is given a charge +Q. The electric field at the
centre O of the ring due to the charge on the part AKB of the ring is E. The electric field
at the centre due to the charge on the part ACDB of the ring is
(1) 3 E along OK
(2) 3 E along KO
(3) E along OK
(4) E along KO
27. The electric potential at a point in free space due to a charge Q coulomb is Q × 1011
volts. The electric field at that point is
(1)
(2)
(3)
(4)
28. A cell can be balanced against 110 cm and 100 cm of potentiometer wire,
respectively with and without being short circuited through a resistance of 10 . Its
internal resistance is
(1) Zero
(2) 1.0 ohm
(3) 0.5 ohm
(4) 2.0 ohm
29. A wire of a certain material is stretched slowly by ten per cent. It new resistance and
specific resistance become respectively
(1) 1.1 times, 1.1 times
(2) 1.2 times, 1.1 times
(3) 1.21 times, same
(4) Both remain the same
30. In the circuit shown, the current through the 4 resistor is 1 amp when the points P
and M are connected to a d.c. voltage source. The potential difference between the points
M and N is
(1) 3.2 volt
(2) 1.5 volt
(3) 1.0 volt
(4) 0.5 volt
31. An electric kettle takes 4A current at 220 V. How much time will it take to boil 1 kg
of water from temperature 20°C? The temperature of boiling water is 100°C.
(1) 4.2 min
(2) 6.3 min
(3) 8.4 min
(4) 12.6 min
32. A current of 3 amp. flows through the 2 resistor shown in the circuit. The power
dissipated in the 5 resistor is
(1) 5 watt
(2) 4 watt
(3) 2 watt
(4) 1 watt
33. A particle of mass m, charge Q and kinetic energy T enters a transverse uniform
magnetic field of induction After 3 seconds the kinetic energy of the particle will be
(1) 4 T
(2) 3 T
(3) 2 T
(4) T
34. A closed loop PQRS carrying a current is placed in a uniform magnetic field. If the
magnetic forces on segments PS, SR and RQ are F1, F2 and F3 respectively and are in the
plane of the paper and along the directions shown, the force on the segment QP is
(1) F3 - F1 + F2
(2) F3 - F1 - F2
(3)
(4)
35. A circular disc of radius 0.2 meter is placed in a uniform magnetic field of induction
in such a way that its axis makes an angle of 60° with The magnetic flux
linked with the disc is
(1)
(2)
(3)
(4)
36. A galvanometer of resistance 50 is connected to a battery of 3 V along with a
resistance of 2950 in series. A full scale deflection of 30 divisions is obtained in the
galvanometer. In order to reduce this deflection to 20 divisions, the resistance in series
should be
(1) 4450
(2) 5050
(3) 5550
(4) 6050
37. Curie temperature is the temperature above which
(1) Ferromagnetic material becomes diamagnetic material
(2) Ferromagnetic material becomes paramagnetic material
(3) Paramagnetic material becomes diamagnetic material
(4) Paramagnetic material becomes ferromagnetic material
38. A long solenoid has 500 turns. When a current of 2 ampere is passed through it, the
resulting magnetic flux linked with each turn of the solenoid is 4 × 10-3 b. The selfinductance
of the solenoid is
(1) 4.0 henry
(2) 2.5 henry
(3) 2.0 henry
(4) 1.0 henry
39. In an a.c. circuit the e.m.f. (e) and the current (i ) at any instant are given
respectively by
The average power in the circuit over one cycle of a.c. is
(1) E0I0
(2)
(3)
(4)
40. In the phenomenon of electric discharge through gases at low pressure, the coloured
glow in the tube appears as a result of
(1) Collision between different electrons of the atoms of the gas
(2) Excitation of electrons in the atoms
(3) Collision between the atoms of the gas
(4) Collisions between the charged particles emitted from the cathode and the atoms of
the gas
41. The work function of a surface of a photosensitive material is 6.2 eV. The
wavelength of the incident radiation for which the stopping potential is 5 V lies in the
(1) X-ray region
(2) Ultraviolet region
(3) Visible region
(4) Infrared region
42. A particle of mass 1 mg has the same wavelength as an electron moving with a
velocity of 3 × 106 ms-1. The velocity of the particle is (mass of electron = 9.1 × 10-31 kg)
(1) 2.7 × 10-21 ms-1
(2) 2.7 × 10-18 ms-1
(3) 9 × 10-2 ms-1
(4) 3 × 10-31 ms-1
43. The ground state energy of hydrogen atom is -13.6 eV. When its electron is in the
first excited state, its excitation energy is
(1) 0
(2) 3.4 eV
(3) 6.8 eV
(4) 10.2 eV
44. Two radioactive materials X1 and X2 have decay constants 5 and respectively. If
initially they have the same number of nuclei, then the ratio of the number of nuclei of X1
to that of X2 will be after a time
(1)
(2)
(3)
(4)
45. Two nuclei have their mass numbers in the ratio of 1:3. The ratio of their nuclear
densities would be
(1) 1 : 1
(2) 1 : 3
(3) 3 : 1
(4) (3)1/3 : 1
46. If M(A; Z), Mp and Mn denote the masses of the nucleus proton and neutron
respectively in units of u (1u = 931.5 MeV / C2) and BE represents its bonding energy in
MeV, then
(1)
(2)
(3)
(4)
47. The voltage gain of an amplifier with 9% negative feedback is 10. The voltage gain
without feedback will be
(1) 100
(2) 90
(3) 10
(4) 1.25
48. If the lattice parameter for a crystalline structure is 3.6 , then the atomic radius in
fcc crystal is
(1) 1.27
(2) 1.81
(3) 2.10
(4) 2.92
49. The circuit
is equivalent to
(1) OR gate
(2) AND gate
(3) NAND gate
(4) NOR gate
50. A p-n photodiode is made of a material with a band gap of 2.0 eV. The minimum
frequency of the radiation that can be absorbed by the material is nearly
(1) 20 × 1014 Hz
(2) 10 × 1014 Hz
(3) 5 × 1014 Hz
(4) 1 × 1014 Hz
51. If uncertainty in position and momentum are equal, then uncertainty in velocity is
(1)
(2)
(3)
(4)
52. If a gas expands at constant temperature, it indicates that
(1) Number of the molecules of gas increases
(2) Kinetic energy of molecules decreases
(3) Pressure of the gas increases
(4) Kinetic energy of molecules remains the same
53. The value of equilibrium constant of the reaction
The equilibrium constant of the reaction
(1)
(2)
(3)
(4) 16
54. If 'a' stands for the edge length of the cubic systems : simple cubic, body centred
cubic and face centred cubic, then the ratio of radii of the spheres in these systems will be
respectively
(1)
(2)
(3)
(4)
55. Kohlrausch's law states that at
(1) Infinite dilution, each ion makes definite contribution to equivalent conductance of an
electrolyte, whatever be the nature of the other ion of the electrolyte
(2) Finite dilution, each ion makes definite contribution to equivalent conductance of an
electrolyte, whatever be the nature of the other ion of the electrolyte
(3) Infinite dilution each ion makes definite contribution to equivalent conductance of an
electrolyte depending on the nature of the other ion of the electrolyte
(4) Infinite dilution, each ion makes definite contribution to conductance of an electrolyte
whatever be the nature of the other ion of the electrolyte
56. The measurement of the electron position is associated with an uncertainty in
momentum, which is equal to 1 × 10-18 g cm s-1. The uncertainty in electron velocity is,
(mass of an electron is 9 × 10-28 g)
(1) 1 × 1011 cm s-1
(2) 1 × 109 cm s-1
(3) 1 × 106 cm s-1
(4) 1 × 105 cm s-1
57. Which of the following are not state functions?
(I) q + w
(II) q
(III) w
(IV) H-TS
(1) (II) and (III)
(2) (I) and (IV)
(3) (II), (III) and (IV)
(4) (I), (II) and (III)
58. The bromination of acetone that occurs in acid solution is represented by this
equation
These kinetic data were obtained for given reaction concentrations
Based on these data, the rate equation is
(1) Rate = k[CH3COCH3][Br2][H+]
(2) Rate = k[CH3COCH3][H+]
(3) Rate = k[CH = COCH3][Br2]
(4) Rate = k[CH3COCH3][Br2][H+]2
59. What volume of oxygen gas (O2) measured at 0°C and 1 atm, is needed to burn
completely 1 L of propane gas (C3H8) measured under the same conditions?
(1) 10 L
(2) 7 L
(3) 6 L
(4) 5 L
60. Bond dissociation enthalpy of H2, Cl2 and HCl are 434, 242 and 431 kJmol-
1respectively. Enthalpy of formation of HCl is
(1) 245 kJmol-1
(2) 93 kJmol-1
(3) -245 kJmol-1
(4) -93 kJmol-1
61. Which of the following statements is not correct?
(1) The number of Bravais lattices in which a crystal can be categorized is 14
(2) The fraction of the total volume occupied by the atoms in a primitive cell is 0.48
(3) Molecular solids are generally volatile
(4) The number of carbon atoms in an unit cell of diamond is 4
62. Equal volumes of three acid solutions of pH 3, 4 and 5 are mixed in a vessel. What
will be the H+ ion concentration in the mixture?
(1) 1.11 × 10-3 M
(2) 1.11 × 10-4 M
(3) 3.7 × 10-4 M
(4) 3.7 × 10-3 M
63. The values of Kp1 and Kp2 for the reactions
are in ratio of 9:1. If degree of dissociation of X and A be equal, then total pressure at
equilibrium (1) and (2) are in the ratio
(1) 1 : 1
(2) 3 : 1
(3) 1 : 9
(4) 36 : 1
64. If the concentration of OH- ions in the reaction
times, then equilibrium
concentration of Fe3+ will increase by
(1) 4 times
(2) 8 times
(3) 16 times
(4) 64 times
65. For the gas phase reaction, Which of the following
conditions is correct?
(1)
(2)
(3)
(4)
66. The rate constants k1 and k2 for two different reactions are
respectively. The temperature at which k1 = k2 is
(1)
(2) 1000 K
(3)
(4) 2000 K
67. Standard free energies of formation (in kJ/mol) at 298 K are -237.2, -394.4 and -8.2
for H2O (l), CO2 (g) and pentane (g) respectively. The value of Eo
cell for the pentaneoxygen
fuel cell is
(1) 0.0968 V
(2) 1.968 V
(3) 2.0968 V
(4) 1.0968 V
68. The dissociation equilibrium of a gas AB2 can be represented as,
The degree of dissociation is 'x' and is small compared to
1. The expression relating the degree of dissociation (x) with equilibrium constant KP and
total pressure P is
(1)
(2)
(3)
(4)
69. The sequence of ionic mobility in aqueous solution is
(1) Na+ > K+ > Rb+ > Cs+
(2) K+ > Na+ > Rb+ > Cs+
(3) Cs+ > Rb+ > K+ > Na+
(4) Rb+ > K+ > Cs+ > Na+
70. Percentage of free space in a body centred cubic unit cell is
(1) 28%
(2) 30%
(3) 32%
(4) 34%
71. The correct order of decreasing second ionisation enthalpy of Ti (22), V (23), Cr
(24) and Mn (25) is
(1) Ti > V > Cr > Mn
(2) Cr > Mn > V > Ti
(3) V > Mn > Cr > Ti
(4) Mn > Cr > Ti > V
72. How many moles of lead (II) chloride will be formed from a reaction between 6.5 g
of PbO and 3.2 g of HCl?
(1) 0.029
(2) 0.044
(3) 0.333
(4) 0.011
73. Which of the following complexes exhibits the highest paramagnetic behaviour?
Where gly = glycine, en = ethylenediamine and bpy = bipyridyl moities). (At. number Ti
= 22, V = 23, Fe = 26, Co = 27)
(1) [Ti(NH3)6]3+
(2) [V (gly)2 (OH)2(NH3)2]+
(3) [Fe(en)(bpy)(NH3)2]2+
(4) [Co(OX)2(OH)2]-
74. Volume occupied by one molecule of water (density = 1 g cm-3) is
(1) 5.5 × 10-23 cm3
(2) 9.0 × 10-23 cm3
(3) 6.023 × 10-23 cm3
(4) 3.0 × 10-23 cm3
75. Number of moles of MnO4
- required to oxidize one mole of ferrous oxalate
completely in acidic medium will be
(1) 0.2 moles
(2) 0.6 moles
(3) 0.4 moles
(4) 7.5 moles
76. On the basis of the following E° values, the strongest oxidizing agent is
(1) [Fe(CN)6]3-
(2) [Fe(CN)6]4-
(3) Fe2+
(4) Fe3+
77. The alkali metals from salt-like hydrides by the direct synthesis at elevated
temperature. The thermal stability of these hydrides decreases in which of the following
orders?
(1) LiH > NaH > KH > RbH > CsH
(2) CsH > RbH > KH > NaH > LiH
(3) KH > NaH > LiH > CsH > RbH
(4) NaH > LiH > KH > RbH > CsH
78. Which one of the following arrangements does not give the correct picture of the
trends indicated against it?
(1) F2 > Cl2 > Br2 > I2 : Electronegativity
(2) F2 > Cl2 > Br2 > I2 : Oxidizing power
(3) F2 > Cl2 > Br2 > I2 : Electron gain enthalpy
(4) F2 > Cl2 > Br2 > I2 : Bond dissociation energy
79. With which one of the following elements silicon should be doped so as to give ptype
of semiconductor?
(1) Boron
(2) Germanium
(3) Arsenic
(4) Selenium
80. In which of the following coordination entities the magnitude of O (CFSE in
octahedral field) will be maximum (at. no. Co = 27)?
(1) [Co (C2O4)3]3-
(2) [Co(H2O)6]3+
(3) [Co(NH3)6]3+
(4) [Co(CN)6]3-
81. The angular shape of molecule (O3) consists of
(1) 2 singma and 1 pi bond
(2) 1 sigma and 2 pi bonds
(3) 2 sigma and 2 pi bonds
(4) 1 sigma and 1 pi bond
82. The correct order of increasing bond angles in the following triatomic species is
(1)
(2)
(3)
(4)
83. Four diatomic species are listed below the different sequences. Which of these
presents the correct order of their increasing bond order?
(1)
(2)
(3)
(4)
84. Equimolar solutions of the following were prepared in water separately. Which one
of the solutions will record the highest pH?
(1) CaCl2
(2) SrCl2
(3) BaCl2
(4) MgCl2
85. In the hydrocarbon
The state of hybridization of carbons 1, 3 and 5 are in the following sequence
(1) sp3, sp2, sp
(2) sp2, sp, sp3
(3) sp, sp3, sp2
(4) sp, sp2, sp3
86. Green chemistry means such reactions which
(1) Study the reactions in plants
(2) Produce colour during reactions
(3) Reduce the use and production of hazardous chemicals
(4) Are related to the depletion of ozone layer
87. A strong base an abstract an -hydrogen from
(1) Alkane
(2) Alkene
(3) Amine
(4) Ketone
88. How many stereoisomers does the molecules have?
CH3CH = CHCH2CHBrCH3
(1) 2
(2) 4
(3) 6
(4) 8
89. The stability of carbanions in the following
is in the order of
(1) a > c > b > d
(2) a > b > c > d
(3) b > c > d > a
(4) d > b > c > a
90. The relative reactivities of acyl compounds towards nucleophilic substitution are in
the order of
(1) Acyl chloride > Ester > Acid anhydride > Amide
(2) Acyl chloride > Acid anhydride > Ester > Amide
(3) Ester > Acyl chloride > Amide > Acid anhydride
(4) Acid anhydride > Amide > Ester > Acyl chloride
91. Base strength of
is in the order of
(1) a > b > c
(2) b > a > c
(3) c > b > a
(4) a > c > b
92.
A (predominantly) is
(1)
(2)
(3)
(4)
93. In DNA, the complimentary bases are
(1) Uracil and adenine; cytosine and guanine
(2) Adenine and thymine; guanine and cytosine
(3) Adenine and thymine; guanine and uracil
(4) Adenine and guanine; thymine and cytosine
94. Which one the following is most reactive towards electrophilic attack?
(1)
(2)
(3)
(4)
95. An organic compound contains carbon, hydrogen and oxygen. Its elemental analysis
gave C, 38.71% and H, 9.67%. The empirical formula of the compound would be
(1) CH4O
(2) CH3O
(3) CH2O
(4) CHO
96. In a SN2 substitution reaction of the type
Which one of the following has the highest relative rate?
(1) CH3CH2Br
(2)
(3)
(4)
97. Acetophenone when reacted with a base, C2H5ONa, yields a stable compound which
has the structure?
(1)
(2)
(3)
(4)
98. In a reaction of aniline a coloured product C was obtained.
The structure of C would be
(1)
(2)
(3)
(4)
99. Which of the following statements is not true?
(1) Natural rubber is a 1, 4 - polymer of isoprene
(2) In vulcanization, the formation of sulphur bridges between different chains make
rubber harder and stronger
(3) Natural rubber has the trans-configuration at every double bond
(4) Buna-S is a copolymer of butadiene and styrene
100. Which one of the following is an amine hormone?
(1) Progesterone
(2) Thyroxine
(3) Oxypurin
(4) Insulin
101. Select one of the following of important features distinguishing Gnetum from
Cycas and Pinus and showing
affinities with angiosperms
(1) Embryo development and apical meristem
(2) Absence of resin duct and leaf venation
(3) Presence of vessel elements and absence of archegonia
(4) Perianth and two integuments
102. Thermococcus, Methanococcus and Methanobacterium exemplify
(1) Bacteria that contain a cytoskeleton and ribosomes
(2) Archaebacteria that contain protein homologous to eukaryotic core histones
(3) Archaebacteria that lack any histones resembling those found in eukaryoties but
whose DNA is negatively supercoiled
(4) Bacteria whose DNA is relaxed or positively supercoiled but which have a
cytoskeleton as well as mitochondria
103. Which one of the following is heterosporous?
(1) Equisetum
(2) Dryopteris
(3) Salvinia
(4) Adiantum
104. In which one of the following male and female gametophytes do not have free
living independent existence?
(1) Cedrus
(2) Pteris
(3) Funaria
(4) Polytrichum
105. Which one of the following groups of three animals each is correctly matched with
their one characteristic morphological feature?
Animals Morphological feature
(1) Cockroach, Locust, Taenia - Metameric segmentation
(2) Liver fluke, Sea anemone, Sea cucumber - Bilateral symmetry
(3) Centipede, Prawn, Sea urchin - Jointed appendages
(4) Scorpion, Spider, Cockroach - Ventral solid central nervous system
106. Which one of the following phyla is correctly matched with its two general
characteristics?
(1) Mollusca - Normally oviparous and development through a trochophore or
veligerlarva
(2) Arthropoda - Body divided into head, thorax and abdomen and respiration by tracheae
(3) Chordata - Notochord at some stage and separate anal and urinary openings to the
outside
(4) Echinodermata - Pentamerous radial symmetry and mostly internal fertilization
107. Which one of the following in birds, indicates their reptilian ancestry?
(1) Eggs with a calcareous shell
(2) Scales on their hind limbs
(3) Four-chambered heart
(4) Two special chambers crop and gizzard in their digestive tract
108. Ascaris is characterized by
(1) Presence of true coclom and metamerism (metamerisation)
(2) Absence of true coclom but presence of metamerism
(3) Presence of neither true coclom nor metamerism
(4) Presence of true coclom but absence of metamerism
109. Which one of the following is not a characteristic of phylum Annelida?
(1) Ventral nerve cord
(2) Closed circulatory system
(3) Segmentation
(4) Pseudocoelom
110. Cellulose is the major component of cell walls of
(1) Saccharomyces
(2) Pythium
(3) Xanthomonas
(4) Pseudomonas
111. Vacuole in a plant cell
(1) Lacks membrane and contains water and excretory substances
(2) Is membrane-bound and contains storage proteins and lipids
(3) Is membrane-bound and contains water and excretory substances
(4) Lacks membrane and contains air
.
112. A competitive inhibitor of succinic dehydrogenase is
(1) Malate
(2) Malonate
(3) Oxaloacetate
(4) - ketoglutarate
113. Polysome is formed by
(1) Ribosomes attached to each other in a linear arrangement
(2) Several ribosomes attached to a single mRNA
(3) Many ribosomes attached to a strand of endoplasmic reticulum
(4) A ribosome with several subunits
.
114. Carbohydrates are commonly found as starch in plant storage organs. Which of the
following five properties of starch (a - e) make it useful as a storage material?
a. Easily translocated
b. Chemical non-reactive
c. Easily digested by animals
d. Osmotically inactive
e. Synthesized during photosynthesis
The useful properties are
(1) Both a & e
(2) Both b & c
(3) Both b & d
(4) a, c & e
115. In the light of recent classification of living organisms into three domains of life
(bacteria, archaea and eukarya), which one of the following statements is true about
archaea?
(1) Archaea completely differ from prokaryotes
(2) Archaea resemble eukarya in all respects
(3) Archaea have some novel features that are absent in other prokaryotes and eukaryotes
(4) Archaea completely differ from both prokaryotes and eukaryotes
116. Keeping in view the 'fluid mosaic model' for the structure of cell membrane, which
one of the following statements is correct w.r.t. the movement of lipids and proteins from
one lipid monolayer to the other (described as flip-flop movement)?
(1) Neither lipids nor proteins can flip-flop
(2) Both lipids and proteins can flip-flop
(3) While lipids can rarely flip-flop, proteins cannot
(4) While proteins can flip-flop, lipids cannot
117. In germinating seeds fatty acids are degraded exclusively in the
(1) Mitochondria
(2) Proplastids
(3) Glyoxysomes
(4) Peroxisomes
118. The two sub-units of ribosome remain united at a critical ion level of
(1) Calcium
(2) Copper
(3) Manganese
(4) Magnesium
119. Thron of Bougainvillea and tendril of cucurbita are example of
(1) Retrogressive evolution
(2) Analogous organs
(3) Homologous organs
(4) Vestigial organs
120. Haploids are more suitable for mutation studies than the diploids. This is because
(1) All mutations, whether dominant or recessive are expressed in haploids
(2) Haploids are reproductively more stable than diploids
(3) Mutagens penetrate in haploids more effectively than diploids
(4) Haploids are more abundant in nature than diploids
121. Which one of the following pairs of nitrogenous bases of nucleic acids, is wrongly
matched with the category mentioned against it?
(1) Adenine, Thymine - Purines
(2) Thymine, Uracil - Pyrimidines
(3) Uracil, Cytosine - Pyrimidines
(4) Guanine, Adenine - Purines
122. Which one of the following conditions in humans is correctly matched with its
chromosomal abnormality/ linkage?
(1) Down syndrome - 44 autosomes + XO
(2) Klinefelter syndrome - 44 autosomes + XXY
(3) Colour blindness - Y-linked
(4) Erythroblastosis foetalis - X-linked
123. In the DNA molecules
(1) There are two strands which run antiparallel-one in 5' 3' direction and other in 3'
5'
(2) The total amount of purine nucleotides and pyrimidine nucleotides is not always equal
(3) There are two strands which run parallel in the 5' 3' direction
(4) The proportion of Adenine in relation to thymine varies with the organism
124. What is true about the isolated small tribal populations?
(1) There is no change in population size as they have a large gene pool
(2) There is a decline in population as boys marry girls only from their own tribe
(3) Hereditary diseases like colour blindness do not spread in the isolated population
(4) Wrestlers who develop strong body muscles in their life time pass this character on to
their progeny
.
125. Which one of the following scientist's name is correctly matched with the theory
put forth by him?
(1) Mendel - Theory of Pangenesis
(2) Weismann - Theory of continuity of Germplasm
(3) Pasteur - Inheritance of acquired characters
(4) de Vries - Natural selection
126. Which one of the following is incorrect about the characteristics of protobionts
(coacervates and micropheres) as envisaged in the abiogenic origin of life?
(1) They could maintain an internal environment
(2) They were able to reproduce
(3) They could separate combinations of molecules from the surroundings
(4) They were partially isolated from the surroundings
.
127. Darwin's Finches are an excellent example of
(1) Connecting links
(2) Adaptive radiation
(3) Seasonal migration
(4) Brood parasitism
128. Which one of the following pairs of items correctly belongs to the category of
organs mentioned against it?
(1) Wings of honey-bee and wings of crow - Homologous organs
(2) Thorn of Bougainvillea and tendrils of Cucurbita - Analogous organs
(3) Nictitating membrane and blind spot in human eye - Vestigial organs
(4) Nephridia of earthworm and malpighian tubules of cockroach - Excretory organs
.
129. The fruit is chambered, developed from inferior ovary and has seeds with succulent
testa in
(1) Cucumber
(2) Pomegranate
(3) Orange
(4) Guava
.
130. The C4 plants are phoptosynthetically more efficient than C3 plants because
(1) They have more chloroplasts
(2) The CO2 compensation point is more
(3) CO2 generated during photorespiration is trapped and recycled through PEP
carboxylase
(4) The CO2 efflux is not prevented
.
131. The chemiosmotic coupling hypothesis of oxidative phosphorylation proposes that
adenosine triphosphate (ATP) is formed because
(1) There is a change in the permeability of the inner mitochondiral membrane toward
adenosine diphosphate (ADP)
(2) High energy bonds are formed in mitochondrial proteins
(3) ADP is pumped out of the matrix into the intermembrane space
(4) A proton gradient forms across the inner membrane
.
132. Dry indehiscent single-seeded fruit formed bicarpellary syncarpous inferior ovary
is
(1) Cremocarp
(2) Caryopsis
(3) Cypsela
(4) Berry
133. The rupture and fractionation do not usually occur in the water column in
vessel/tracheids during the ascent of sap because of
(1) Transpiration pull
(2) Lignified thick walls
(3) Cohesion and adhesion
(4) Weak gravitational pull
134. Senescence as an active developmental cellular process in the growth and
functioning of a flowering plant, is indicated in
(1) Floral parts
(2) Vessels and tracheid differentiation
(3) Leaf abscission
(4) Annual plants
135. Vascular tissues in flowering plants develop from
(1) Dermatogen
(2) Phellogen
(3) Plerome
(4) Periblem
136. In leaves of C4 plants malic acid synthesis during CO2 fixation occurs in
(1) Guard cells
(2) Epidermal cells
(3) Mesophyll cells
(4) Bundle sheath
.
137. Importance of day length in flowering of plants was first shown in
(1) Petunia
(2) Lemna
(3) Tobacco
(4) Cotton
.
138. Endosperm is consumed by developing embryo in the seed of
(1) Maize
(2) Coconut
(3) Castor
(4) Pea
139. Nitrogen fixation in root nodules of Alnus is brought about by
(1) Azorhizobium
(2) Bradyhizobium
(3) Clostridium
(4) Frankia
.
140. The energy releasing process in which the substrate is oxidised without an external
electron acceptor is called
(1) Glycolysis
(2) Fermentation
(3) Photorespiration
(4) Aerobic respiration
141. Replum is present in the ovary of flower of
(1) Pea
(2) Lemon
(3) Mustard
(4) Sunflower
.
142. The fleshy receptacle of syconus of fig encloses a number of
(1) Mericarps
(2) Achenes
(3) Samaras
(4) Berries
143. Electrons from excited chlorophyll molecule of photosystem II are accepted first
by
(1) Ferredoxin
(2) Cytochrome - b
(3) Cytochrome - f
(4) Quinone
144. Which type of white blood cells are concerned with the release of histamine and
the natural anticoagulant heparin?
(1) Monocytes
(2) Neutrophils
(3) Basophils
(4) Eosinophils
145. Which one of the following is the true description about an animal concerned?
(1) Cockroach - 10 pairs of spiracles (2 pairs on thorax and 8 pairs on abdomen)
(2) Earthworm - The alimentary canal consists of a sequence of pharynx, oesophagus,
stomach, gizzard and intestine
(3) Frog - Body divisible into three regions - head, neck and trunk
(4) Rat - Left kidney is slightly higher in position than the right one
.
146. Which one of the following is the correct matching of the site of action on the
given substrate, the enzyme acting upon it and the end product?
(1)
(2)
(3)
(4)
147. What is vital capacity of our lungs?
(1) Total lungs capacity minus residual volume
(2) Inspiratory reserve volume plus tidal volume
(3) Total lungs capacity minus expiratory reserve volume
(4) Inspiratory reserve volume plus expiratory reserve volume
148. Which one of the following is the correct difference between Rod Cells and Cone
Cells of our retina?
Rod Cells Cone Cells
(1) Distribution
More concentrated in centre
of retina
Evenly distributed all over retina
(2) Visual acuity High Low
(3)
Visual pigment
contained
Iodopsin Rhodopsin
(4) Overall function Vision in poor light
Colour vision and detailed vision
in bright light
.
149. Which one of the following items gives its correct total number?
(1) Cervical vertebrae in humans - 8
(2) Floating ribs in humans - 4
(3) Amino acids found in proteins - 16
(4) Types of diabetes - 3
150. Given below is a diagrammatic cross section of a single loop of human cochlea
Which one of the following options correctly represents the names of three different
parts?
(1) A : Perilymph, B : Tectorial membrane, C : Endolymph
(2) B : Tectorial membrane, C : Perilymph, D : Secretory cells
(3) C : Endolymph, D : Sensory hair cells, A : Serum
(4) D : Sensory hair cells, A : Endolymph, B : Tectorial membrane
151. Given below are four methods (A - D) and their modes of action (a - d) in
achieving contraception. Select their correct matching from the four options that follow
Method Mode of Action
(A) The pill (a) Prevents sperms reaching cervix
(B) Condom (b) Prevents implantation
(C) Vasectomy (c) Prevents ovulation
(D) Copper T (d) Semen contains no sperms
Matching
(1) A-(b), B-(c), C-(a), D-(d)
(2) A-(c), B-(a), C-(d), D-(b)
(3) A-(d), B-(a), C-(b), D-(c)
(4) A-(c) B-(d), C-(a), D-(b)
152. What will happen if the secretion of parietal cells of gastric glands is blocked with
an inhibitor?
(1) Enterokinase will not be released from the duodenal mucosa and so trypsinogen is not
converted to trypsin
(2) Gastric juice will be deficient in chymosin
(3) Gastric juice will be deficient in pepsinogen
(4) In the absence of HCl secretion, inactive pepsinogen is not converted into the active
enzyme pepsin.
153. During the propagation of a nerve impulse, the action potential results from the
movement of
(1) Na+ ions from extracellular fluid to intracellular fluid
(2) Ka+ ions from extracellular fluid to intracellular fluid
(3) Na+ ions from intracellular fluid to extracellular fluid
(4) Ka+ ions from intracellular fluid to extracellular fluid
154. The blood calcium level is lowered by the deficiency of
(1) Calcitonin
(2) Parathormone
(3) Thyroxine
(4) Both Calcitonin and Parathormone
155. The most active phagocytic white blood cells are
(1) Neutrophils and monocytes
(2) Neutrophils and eosinophils
(3) Lymphocytes and macrophages
(4) Eosinophils and lymphocytes
.
156. Earthworms have no skeleton but during burrowing, the anterior end becomes
turgid and acts as a hydraulic skeleton. It is due to
(1) Setae
(2) Coelomic fluid
(3) Blood
(4) Gut peristalsis
.
157. In humans, blood passes from the post caval to the diastolic right atrium of heart
due to
(1) Pressure difference between the post caval and atrium
(2) Pushing open of the venous valves
(3) Suction pull
(4) Stimulation of the sino auricular node
.
158. In humans, at the end of the first meiotic division, the male germ cells differentiate
into the
(1) Spermatozonia
(2) Primary spermatocytes
(3) Secondary spermatocytes
(4) Spermatids
159. Which one of the following is resistant to enzyme action?
(1) Leaf cuticle
(2) Cork
(3) Wood fibre
(4) Pollen exine
160. The length of different internodes in a culm of sugarcane is variable because of
(1) Intercalary meristem
(2) Shoot apical meristem
(3) Position of axillary buds
(4) Size of leaf lamina at the node below each internode
.
161. Which one of the following pairs of plant structures has haploid number of
chromosomes?
(1) Egg nucleus and secondary nucleus
(2) Megaspore mother cell and antipodal cells
(3) Egg cell and antipodal cells
(4) Nucellus and antipodal cells
.
162. What does the filiform apparatus do at the entrance into ovule?
(1) It guides pollen tube from a synergid to egg
(2) It helps in the entry of pollen tube into a synergid
(3) It prevents entry of more than one pollen tube into the embryosac
(4) It brings about opening of the pollen tube
163. Unisexuality of flowers prevents
(1) Autogamy and geitonogamy
(2) Autogamy, but not geitonogamy
(3) Both geitonogamy and xenogamy
(4) Geitonogamy, but not xenogamy
.
164. Which extraembryonic membrane in humans prevents desiccation of the embryo
inside the utrerus?
(1) Amnion
(2) Chorion
(3) Allantois
(4) Yolk sac
165. Which one of the following statements is incorrect about menstruation?
(1) The beginning of the cycle of menstruation is called menarche
(2) During normal menstruation about 40 ml blood is lost
(3) The menstrual fluid can easily clot
(4) At menopause in the female, there is especially abrupt increase in gonadotropic
hormones
.
166. The haemoglobin of a human foetus
(1) Has a higher affinity for oxygen than that of an adult
(2) Has a lower affinity for oxygen than that of the adult
(3) Its affinity for oxygen is the same as that of an adult
(4) Has only 2 protein subunits instead of 4
167. Consider the statements given below regarding contraception and answer as
directed thereafter
(a) Medical Termination of Pregnancy (MTP) during first trimester is generally safe
(b) Generally chances of conception are nil until mother breast-feeds the infant upto two
years
(c) Intrauterine devices like copper-T are effective contraceptives
(d) Contraception pills may be taken upto one week after coitus to prevent conception
Which two of the above statements are correct?
(1) a, b
(2) b, c
(3) c, d
(4) a, c
168. In human adult females oxytocin
(1) Causes strong uterine contractions during parturition
(2) Is secreted by anterior pituitary
(3) Stimulates growth of mammary glands
(4) Stimulates pituitary to secrete vasopressin
169. Which one of the following is the correct percentage of the two (out of the total of
4) green house gases that contribute to the total global warming?
(1) Methane 20%, N2O 18%
(2) CFCs14%, Methane 20%
(3) CO2 40%, CFSs 30%
(4) N2O 6%, CO2 86%
170. Quercus species are the dominant component in
(1) Tropical rain forests
(2) Temperate deciduous forests
(3) Alpine forests
(4) Scrub forests
171. About 70% of total global carbon is found in
(1) Forests
(2) Grasslands
(3) Agroecosystems
(4) Oceans
172. Which one of the following is not observed in biodiversity hotspots?
(1) Species richness
(2) Endemism
(3) Accelerated species loss
(4) Lesser inter-specific competition
.
173. World summit on Sustainable Development (2002) was held in
(1) South Africa
(2) Brazil
(3) Sweden
(4) Argentina
174. The slow rate of decomposition of fallen logs in nature is due to their
(1) Low cellulose content
(2) Low moisture content
(3) Poor nitrogen content
(4) Anaerobic environment around them
.
175. Consider the following statements concerning food chains
(a) Removal of 80% tigers from an area resulted in greatly increased growth of vegetation
(b) Removal of most of the carnivores resulted in an increased population of deers
(c) The length of food chains is generally limited to 3-4 trophic levels due to energy loss
(d) The length of food chains may vary from 2 to 8 trophic levels.
Which two of the above statements are correct?
(1) a, b
(2) b, c
(3) c, d
(4) a, d
.
176. According to Central Pollution Control Board (CPCB), which particulate size in
diameter (in micrometers) of
the air pollutants is responsible for greatest harm to human health?
(1) 5.2 - 2.5
(2) 2.5 or less
(3) 1.5 or less
(4) 1.0 or less
.
177. The table below gives the populations (in thousands) of ten species (A - J) in four
areas (a - d) consisting of the number of habitats given within brackets against each.
Study the table and answer the question which follows
Which area out of a to d shows maximum species diversity?
(1) a
(2) b
(3) c
(4) d
178. A lake near a village suffered heavy mortality of fishes within a few days. Consider
the following reasons for this
(a) Lots of urea and phosphate fertilizer were used in the crops in the vicinity
(b) The area was sprayed with DDT by an aircraft
(c) The lake water turned green and stinky
(d) Phytoplankton populations in the lake declined initially thereby greatly reducing
photosynthesis
Which two of the above were the main causes of fish mortality in the lake?
(1) a, b
(2) b, c
(3) c, d
(4) a, c
179. Consider the following four statements (a - d) about certain desert animals such as
kangaroo rat.
(a) They have dark colour and high rate of reproduction and excrete solid urine
(b) They do not drink water, breathe at a slow rate to conserve water and have their body
covered with thick hairs
(c) They feed on dry seeds and do not require drinking water
(d) They excrete very concentrated urine and do not use water to regulate body
temperature
Which two of the above statements for such animals are true?
(1) a and b
(2) c and d
(3) b and c
(4) c and a
180. A transgeneic food crop which may help in solving the problem of night blindness
in developing countries is
(1) Golden rice
(2) Flavr Savr tomatoes
(3) Starlink maize
(4) Bt Soybean
181. Bacterial leaf blight of rice is caused by a species of
(1) Erwinia
(2) Xanthomonas
(3) Pseudomonas
(4) Alternaria
182. Which one of the following is linked to the discovery of Bordeaux mixture as a
popular fungicide?
(1) Black rust of wheat
(2) Bacterial leaf blight of rice
(3) Downy mildew of grapes
(4) Loose smut of wheat
.
183. Which one of the following is being tried in India as a biofuel substitute for fossil
fuels?
(1) Aegilops
(2) Jatropha
(3) Azadirachta
(4) Musa
.
184. Trichoderma harzianum has proved a useful microorganism for
(1) Biological control of soi-borne plant pathogens
(2) Bioremediation of contaminated soils
(3) Reclamation of wastelands
(4) Gene transfer in higher plants
.
185. Gel electrophoresis is used for
(1) Isolation of DNA molecule
(2) Cutting of DNA into fragments
(3) Separation of DNA fragments according to their size
(4) Construction of recombinant DNA by joining with cloning vectors
186. To which type of barriers under innate immunity, do the saliva in the mouth and
the tears from the eyes, belong?
(1) Physical barriers
(2) Cytokine barriers
(3) Cellular barriers
(4) Physiological barriers
187. Match the disease in Column I with the appropriate items
(pathogen/prevention/treatment) in Column II

Column I Column II
(a) Amoebiasis (i) Treponema palladium
(b) Diphtheria (ii) Use only sterilized food and water
(c) Cholera (iii) DPT Vaccine
(d) Syphilis (iv) Use oval rehydration therapy
(1) a-(ii), b-(iii), c-(iv), d-(i)
(2) a-(i), b-(ii), c-(iii), d-(iv)
(3) a-(ii), b-(iv), c-(i), d-(iii)
(4) a-(ii), b-(i), c-(iii), d-(iv)
188. Consider the following statements about biomedical technologies
(a) During open heart surgery blood is circulated in the heart-lung machine
(b) Blockage in coronary arteries is removed by angiography
(c) Computerised Axial Tomography (CAT) shows detailed internal structure as
seen in a section of body
(d) X-ray provides clear and detailed images or organs like prostate glands and
lungs
Which two of the above statements are correct?
(1) a and b
(2) b and d
(3) c and d
(4) a and c
.
189. Which one of the following pairs of codons is correctly matched with their
function or the signal for the particular amino acid?
(1) UUA, UCA - Leucine
(2) GUU, GCU - Alanine
(3) UAG, UGA - Stop
(4) AUG, ACG - Start / Methionine
190. Which one of the following is the correct statement regarding the particular
psychotropic drug specified?
(1) Barbiturates cause relation and temporary euphoria
(2) Hashish causes after thought perceptions and hallucinations
(3) Opium stimulates nervous system and causes hallucinations
(4) Morphine leads to delusions and disturbed emotions
191. Cry 1 endotoxins obtained from Bacillus Thuringiensis are effective against
(1) Boll worms
(2) Mosquitoes
(3) Flies
(4) Nematodes
.
192. Modern detergents contain enzyme preparations of
(1) Thermophiles
(2) Acidophiles
(3) Alkaliphiles
(4) Thermoacidophiles
.
193. The linking of antibiotic resistance gene with the plasmid vector became
possible with
(1) Exonucleases
(2) DNA ligase
(3) Endouncleases
(4) DNA polymerase
194. Which one of the following proved effective for biological control of
nematodal disease in plants?
(1) Paecilomyces lilacinus
(2) Pisolithus tinctorius
(3) Pseudomonas cepacia
(4) Gliocladium virens
195. Main objective of production/use of herbicide resistant GM crops is to
(1) Reduce herbicide accumulation in food articles for health safety
(2) Eliminate weeds from the field without the use of manual labour
(3) eliminate weeds from the field without the use of herbicides
(4) Encourage eco-friendly herbicides
196. Consider the following four measures (a - d) that could be taken to
successfully grow chick-pea in an area where bacterial blight disease is common
(a) Spray with Bordeaux mixture
(b) Control of the insect vector of the disease pathogen
(c) Use of only disease-free seeds
(d) Use of varieties resistant to the disease
Which two of the above measures can control the disease?
(1) (a) and (d)
(2) (b) and (c)
(3) (a) and (b)
(4) (c) and (d)
197. Human insulin is being commercially produced from a transgenic species of
(1) Saccharomyces
(2) Escherichia
(3) Mycobacterium
(4) Rhizobium
198. Cornea transplant in humans is almost never rejected. This is because
(1) It is a non-living layer
(2) Its cells are least penetrable by bacteria
(3) It has no blood supply
(4) It is composed of enucleated cells
199. Which of the following pairs of organs includes only the endocrine glands?
(1) Adrenal and Ovary
(2) Parathyroid and Adrenal
(3) Pancreas and Parathyroid
(4) Thymus and Testes
200. What is antisense technology?
(1) RNA polymerase producing DNA
(2) A cell displaying a foreign antigen used for synthesis of antigens
(3) Production of somaclonal variants in tissue cultures
(4) When a piece of RNA that is complementary in sequence is used to stop
expression of a specific gene

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