Biomolecules Question 2
Biomolecules Question 2
7601CMD30313224005 MD
PHYSICS
SECTION-A
1) A force F acting on a object varies with distance x as shown in the figure. The work done by the
(1) 500 J
(2) 1000 J
(3) 1500 J
(4) 2000 J
2) As shown in the diagram a particle is to be carried from point A to C via paths (I), (II) and (Ill) in
3) A time dependent force F = 6t acts on a particle of mass 1kg. If the particle starts from rest, the
work done by the force during the first 1 sec. will be :
(1) 18 J
(2) 4.5 J
(3) 22 J
(4) 9 J
4) Choose the correct options :-
(a) the work done by forces may be equal to change in K.E.
(b) The W.D. by forces may be equal to change in potential energy
(c) The W.D. by forces may be equal to change in total energy.
(d) The W.D. by forces must be equal to change in potential energy.
5) In the given arrangement, n number of equal masses are connected by strings of negligible
(1)
(2)
(3) mg
(4) mng
6) Find out maximum compression is the spring in given figure. (K = 100 N/m)
(1) 1 m
(2) 2 m
(3) 2.5 m
(4) 1.5 m
7) The relationship between force and position is shown in fig.(in one dimensional case). The work
done by the force in displacing a body from x=l cm to x = 5 cm is :
(1) 20 ergs
(2) 60 ergs
(3) 70 ergs
(4) 700 ergs
8) A force of magnitude of 30 N acting along             , displaces a particle from point (2, 4, 1)m to
(3, 5, 2)m. The work done by this force during this displacement is :-
(1) 90 J
(2) 30 J
(3) 30      J
(4) 30/       J
9) A particle in a certain conservative force field has a potential energy given by           . The force
exerted on it is :-
(1)
(2)
(3)
(4)
10) A force of 10 N acts on a body of 2 kg mass for a distance of 1 m. The kinetic energy received by
the body is -
(1) 20 J
(2) 10 J
(3) 5 J
(4) 2.5 J
11) A pulley fixed to the ceiling carries a string with bodies of masses m and 3m attached to its ends.
The masses of the pulley and the string are negligible, friction is absent. The acceleration of the
centre of mass of the system is
(1) -g/4
(2) g/4
(3) g/5
(4) -g/5
12) A particle moves with a velocity m/s under the influence of a constant force
(1) 70 J
(2) 270 J
(3) 35 J
(4) 135 J
14) If the momentum of a body is increased by 100%, then the percentage increase in the kinetic
energy is
(1) 150 %
(2) 200 %
(3) 225 %
(4) 300 %
15) The upper half of an inclined plane of inclination θ is perfectly smooth while the lower half is
rough. A body starting from the rest at top comes back to rest at the bottom if the coefficient of
friction for the lower half is given
(1) μ = sin θ
(2) μ = cot θ
(3) μ = 2 cos θ
(4) μ = 2 tan θ
16) A 2 kg block drops vertically from a height of 40 cm on a spring whose force constant K is 1960
newton per metre. Then the maximum compression of the spring is:
(1) 40 cm
(2) 25 cm
(3) 10 cm
(4) 5 cm
17) Graph shows the acceleration of a 3 kg particle as an applied force moves it from rest along x
axis. The total work done by the force on the particle by the time the particle reaches x = 6 m, is
equal to
(1) 20 J
(2) 30 J
(3) 40 J
(4) 60 J
18) A man pulls a bucket of water from a well of depth h. If the mass of the rope is ‘m’ and that of
the bucket with full of water are M respectively, then the work done by the man is
(1) (M + m) g h
(2)
(3)
(4)
19) A particle moves from (0, 0) to (a, a) to (2a, 3a) and finally reaches at the origin. During motion a
constant force is acting on the block. The work done by the force on the block is :
(1) zero
(2) > zero
(3) < zero
(4) None of these
20) A particle starts from rest from origin and moves in x-y plane along a parabolic path whose
equation is y = x2 in the presence of a number of forces. One of the forces acting on the particle is
                 . Find work done by this force F when the particle moves from origin to x=2m.
(1) Zero
(2) 2J
(3) 1J
(4) None of these
21) A particle performing uniform circular motion has angular momentum L. If its angular frequency
is doubled and its kinetic energy halved, then the new angular momentum is :
(1) L/4
(2) 2L
(3) 4L
(4) L/2
22) A child is standing with folded hands at the centre of a platform rotating about its central axis.
The kinetic energy of the system is K and moment of inertia is I. The child now stretches his arms so
that the moment of inertia of the system doubles. The kinetic energy of the system now is :-
(1) 2K
(2)
(3)
(4) 4K
23) A ball it thrown on a lawn in such a way that it initially slides with a speed v0 without rolling. It
gradually picks up rotation motion. Find the speed of the ball at which there will be rolling without
slipping–
(1)
(2)
(3)
(4)
24) The position of a body with respect to time is given by x = 4t3 – 6t2 + 20 t + 12. Acceleration at t
= 0 will be-
25) A solid sphere of mass m and radius R rolls without slipping on a horizontal surface such that
vc.m. = v0.
(1)
      The kinetic energy of rotation is
(2)
      The total kinetic energy is
(3)
      The mechanical energy (assume the ground as reference) is mgR +
(4) All options are correct
26) A small object of uniform density rolls up a curved surface with an initial velocity v. It reaches up
(1) ring
(2) solid sphere
(3) hollow sphere
(4) disc
27) The moment of inertia of a thin square plate ABCD of uniform thickness about an axis passing
through the centre O and perpendicular to the plate is: (a) I1 + I2
(b) I3 + I4
(c) I1 + I3
(d) I1 + I2 + I3 + I4
(1) a, b
(2) a, b, c
(3) a, b, c, d
(4) a, b, d
28) A body rolls down without slipping on an inclined plane. The fraction of its total energy
associated with rotation will be (radius of gyration is K and radius is R) :
(1)
(2)
(3) K2 + R2
(4)
29) A flywheel rotates with a uniform angular acceleration. Its angular velocity increases from 40 π
rad/sec. to 60 π rad/sec. in 10 second. How many rotations did it make in this period ?
(1) 250
(2) 125
(3) 500
(4) 1000
30) Point masses m1 and m2 are placed at the opposite ends of a rigid rod of length L and negligible
mass. The rod is to be set rotating about an axis perpendicular to it. The position of point P on this
rod through which the axis should pass so that the work required to set the rod rotating with
(1)
(2)
(3)
(4)
31) The minimum value of F for which the cube(a) begins to topple about an edge is –
(1)
(2)
(3)
(4) mg
33) If the density of material of a square plate and a circular plate shown in is same, the centre of
34) An open knife edge of mass M is dropped from a height 'h' on a wooden floor. If the edge
penetrates a distance 's' into the wood, the average resistance offered by the wood to the blade is :-
(1) Mg
(2)
(3)
(4)
35) A bomb of mass 12kg at rest explodes into two peices of masses in the ratio 1 : 3. It kinetic
energy of smaller peice is 216 J, what is the momentum of the larger peice ?
SECTION-B
1) Body A of mass 4m moving with speed U collides with another body B of mass m, at rest. The
collision is head on and elastic in nature. After the collision, the fraction of energy lost by the
colliding body A is :
(1)
(2)
(3)
(4)
2) A particle of mass m moving with velocity           m/s, collides with another body of mass M and
finally moves with velocity          m/s, then during the collision :
3) Two balls are thrown simultaneously in air. The acceleration of the center of mass of the two balls
while in air :
4) A gun of mass 10 kg fires four bullets per second. The mass of each bullet is 20g and the velocity
of the bullet when it leaves the gun is 300 m/s. The force required to hold the gun while firing is
(1) 6 N
(2) 8 N
(3) 24 N
(4) 240 N
5) A ball of mass m moving with velocity v0 collides a wall as shown in figure. After impact it
(1)
(2)
(3)
6) A ball collides elastically with another ball of the same mass. The collision is oblique and initially
one of the balls was at rest. After the collision, the two balls move with same speed. What will be the
angle between the velocities of the balls after the collision :-
(1) 30°
(2) 45°
(3) 60°
(4) 90°
7) A force acts on a 3 gm particle in such a way that the position of the particle as a function of time
is given by x = 3t – 4t2 + t3, where x is meters and t is in seconds. The work done during the first 4
second is-
(1) 384 mJ
(2) 168 mJ
(3) 528 mJ
(4) 541 mJ
8) A uniform thin stick of length ℓ and mass m is held horizontally with its end B hinged at a point B
on the edge of a table. Point A is suddenly released. The acceleration of the centre of mass of the
stick at the time of release, is :-
(1)
(2)
(3)
(4)
9) Assertion : Work done by the centripetal force in moving a body along a circle is always zero.
Reason : In circular motion the displacement of the body is along the force.
(1) Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
(2) Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
(3) Assertion is true but Reason is false.
(4) Both Assertion and Reason are false.
10) A cord is wound round the circumference of the wheel of radius r. The axis of wheel is
horizontal and moment of inertia about its centre is I. A weight mg is attached to the cord at the end.
The weight falls from rest, after falling through a distance h, the angular velocity of the wheel will
be :-
(1)
(2)
              `
(3)
(4)
11) A particle performs uniform circular motion with an angular momentum L. If the frequency of
particle’s motion is tripled and its kinetic energy double, the angular momentum becomes
(1)
(2) 3L
(3)
(4) 2L
12) A circular road of radius 1000 m has banking angle 45°. What will be the maximum safe speed of
a car having mass 2000 kg, if the coefficient of friction between tyre and road is 0.5 ?
13) The constant angular acceleration of a wheel is 3.0 rad/s2. During a given time interval of 4.0s it
rotates through an angle of 120 radians. Suppose t = 0, but the angular speed 0 = 3 rad/s, then how
much time will the motion take at the beginning of this 4.0s time interval?
(1) 7 sec.
(2) 9 sec.
(3) 4 sec.
(4) 10 sec.
14)
Velocity-time graph of a particle of mass 2 kg moving in a straight line is as shown in figure. Work
done by all the forces on the particle is :-
(1) 400 J
(2) – 400 J
(3) – 200 J
(4) 200 J
15) A stationary body explodes into two fragments of masses m1 and m2. If momentum of one
fragment is p, the energy of explosion is :-
(1)
(2)
(3)
(4)
CHEMISTRY
SECTION-A
(1) CO2
(2) NO2
(3) SO2
(4) SiO2
       –     2–
(1) NO3 , CO3
             –
(2) SO3, NO2
        –     2–
(3) ClO3 , CO3
              –
(4) SO3, ClO3
(1) PH5
        –2
(2) SiF6
       –2
(3) CF6
(4) Both (1) and (3)
4) In the following electron dot structure, correct calculation of the formal charge from left to right
nitrogen atom is
5)
        Column-I                       Column-I
       (Molecules)                    (Property)
(1) XeF2
(2) PCl3F2
(3) PCl5
(4) SF4
7)
8) The molecule which is having maximum number of lone pair on central atom.
(1) SiF4
(2) BrF3
(3) XeF2
(4) SF4
(1) Li2
(2) C2
(3) O2
(4) H2
(1) σ1s < σ*1s < σ2s < σ*2s < σ2pz < (π2px = π2py) < (π*2px = π*2py) < σ*2pz
(2) σ1s < σ*1s < σ2s < σ*2s < σ2pz < σ*2pz < (π2px = π2py) < (π*2px = π*2py)
(3) σ1s < σ*1s < σ2s < σ*2s < (π2px = 2π2py) < (π*2px = π*2py) < σ2pz < σ*2pz
(4) σ1s < σ*1s < σ2s < σ*2s < (π2px = π2py) < σ2pz < (π*2px = π*2py) < σ*2pz
List-I List-II
(2)
(3) K
(4) 2K
14) For a reaction N2 + 3H2 2NH3, the value of KC does not depends upon :-
(a) Initial concentration of the reactants
(b) Pressure
(c) Temperature
(d) Catalyst
(1) Only c
(2) a, b, c
(3) a, b, d
(4) a, b, c, d
15) The equilibrium of a reaction that is not influenced by volume change at constant temperature
is:-
17) A monoprotic acid in a 0.1 M solution ionizes to 0.001%. Its ionization constant is –
18) Find the pH of a buffer solution containing equal concentration of B– and HB. (Kb for B– is 10–10) :-
(1) 4
(2) 10
(3) 7
(4) 6
20) Ksp for a base M(OH)3 is 2.7 × 10–11. Calculate conc. of OH– ?
(1) 3 × 10–3
(2) 6 × 10–3
(3) 9 × 10–3
(4) 4 × 10–3
(1)
(2)
(3)
(4) CO
24) Ostwald's dilution law gives satisfactory results with the solution of which electrolyte ?
(1) HCl
(2) HNO3
(3) CH3COOH
(4) NaOH
26) Bond dissociation enthalpy of H2, Cl2 and HCl are 434, 242 and 431 kJ mol–1 respectively.
Enthalpy of formation of HCl is :-
will be :-
28) The enthalpy of formation for C2H4(g), CO2(g) and H2O(ℓ) at 25°C and 1 atm. pressure are 52, -
394 and - 286 kJ mole-1 respectively. The enthalpy of combustion of C2H4 will be:-
29) If enthalpy of neutralisation of HCl with NaOH is –56 kJ/mol and that of HCN with NaOH is 12
kJ/mol then enthalpy of ionisation of HCN will be :-
(1) –55 kJ
(2) +44 kJ
(3) +78 kJ
(4) –75 kJ
30) Assertion : Internal energy change in a cyclic process is always zero.
Reason : Internal energy is a state function.
(1) Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
(2) Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
(3) Assertion is true but Reason is false.
(4) Both Assertion and Reason are false.
31) Statement-I : For reaction, H2(g) + Br2(g) → 2HBr(ℓ) enthalpy change is not standard enthalpy
of formation.
Statement-II : In above reaction two moles instead of one mole of product is formed from elements
and Bromine should be in liquid state.
On the basis of above statement, select correct option :-
(1) Statement-I and II both are correct and statement-II is correct explanation of statement-I
(2) Statement-I and II both are correct but statement-II is not correct explanation of statement-I
(3) Statement-I is correct, statement-II is incorrect
(4) Statement-I is incorrect, statement-II is correct
(1) Both Assertion and Reason are correct but Reason is NOT the correct explanation of Assertion.
(2) Assertion is correct but Reason is incorrect.
(3) Assertion is incorrect but Reason is correct.
(4) Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
33) Assume each reaction is carried out in an open container. For which reaction will ΔH = ΔE ?
SECTION-B
                                  0
1) For the formation of CH4 of ΔU = –x kJ mol–1 then what will be value of ΔH0 kJ mol–1.
(1) –x – RT
(2) –x + 2RT
(3) –x + RT
(4) –2x – 4RT
2) If 400 kJ work is done by the system and 150 kJ heat is given to system then what will be effect on
internal energy of the system
3)
The gas absorbs 100 J and is simultaneously compressed by a constant external pressure of 1.50 atm
from 8 lit to 2 lit volume. Hence ΔU will be:
(1) – 812 J
(2) 812 J
(3) 1011 J
(4) 911 J
4) When an ideal gas is compressed adiabatically and reversibly, the final temperature is
(1) Temperature
(2) Pressure
(3) Internal energy
(4) None of these
6) Assertion :- Very weak acids have strong conjugate bases while strong acids have weak
conjugate bases.
Reason :- Conjugate acid-base pair differ only by one proton.
(1) Both Assertion & Reason are correct and Reason is correct explanation for Assertion.
(2) Both Assertion & Reason are correct but Reason is not correct explanation for Assertion.
(3) Assertion is correct but Reason is not correct.
(4) Both Assertion & Reason are incorrect.
(1) Both assertion and reason are true and reason is the correct explanation of assertion.
(2) Both assertion and reason are true and reason is not the correct explanation of assertion.
(3) Assertion is true but reason is false.
(4) Both assertion and reason are false
10) At equilibrium, CaCO3(s) CaO(s) + CO2(g) the addition of more of CaO(s) causes :-
(1) H – H
(2) Cl – Cl
(3) Br – Br
(4) I – I
12) Which of the following is paramagentic but does not have fractional bond order :-
(1)
(2)
(3) O2
(4)
13)
In which of the following ionisation process the bond order has increased and the magnetic
behaviour has changed :-
            +
(1) C2 → C2
(2) NO → NO+
            +
(3) O2 → O2
            +
(4) N2 → N2
       +
(1) NH4
       –
(2) BF4
(3) XeF4
(4) CCl4
(1) HeH+
(2) Be2
(3) Li2
(4) C2
BOTANY
SECTION-A
2)
3) Identify the given figures of algae and select the correct option.
(A) (B)
(C) (D)
      A–Volvox, B–Chlamydomonas,
(1)
      C–Chara, D–Porphyra
      A–Fucus, B–Dictyota, C–Porphyra,
(2)
      D–Polysiphonia
      A–Fucus, B–Polysiphonia,
(3)
      C–Porphyra, D–Dictyota
      A–Dictyota, B–Porphyra, C–Fucus,
(4)
      D–Polysiphonia
(1) a, d
(2) c, b
(3) d
(4) a, b
6)
In a Capsule number of chromosome is 24, what will be the number of chromosomes in its foot,
spores, and main thallus of bryophytes respectively :-
7) Which of the following have multicellular sporophyte which is not free living but attached to
photosynthetic gametophyte and derives nourishment from it ?
(1) Pteridophytes
(2) Algae
(3) Spermatophytes
(4) Bryophytes
(1) Both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
(2) Both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
(3) Assertion is True but the Reason is False.
(4) Both Assertion & Reason are False.
9) In pteridophytes, spores germinate to give rise to inconspicuous, small but multicellular, free
living, mostly photosynthetic thalloid gametophytes called :-
(1) Protonema
(2) Prothallus
(3) Endosperm
(4) Embryosac
10) Independent alternation of generation is the unique character of the life cycle of :-
(1) Bryophyte
(2) Pteridophyte
(3) Gymnosperm
(4) Spermatophyte
11) The leaves of gymnosperms are well-adapted to withstand extremes of temperature, humidity
and wind. In conifers, what are the xerophytic characters?
(1) Needle-like leaves
(2) Thick cuticle
(3) Sunken stomata
(4) All of these
(1) Animals
(2) Birds
(3) Water
(4) Air currents
(1) Both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
(2) Both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
(3) Assertion is True but the Reason is False.
(4) Assertion is False but the Reason is True.
(1) Algae
(2) Angiosperms
(3) Gymnosperms
(4) Pteridophytes
15) Which among the following cells of the embryo sac degenerate after fertilisation.
16)
The region of root few millimetres above the root cap possessing very small cells with thin walls and
dense protoplasm is
17) In some plants, like grass, Monstera and the banyan tree, roots arise from parts of the plant
other than the radicle and are called :
(1) Tap root system
(2) Fibrous root system
(3) Adventitious root system
(4) Primary root system
18) The four sketches (A, B, C and D) given below represent the different types of roots. Which one
of these is correctly identified in the option given along with its correct location and function.
       If both the assertion and the reason are true and the reason is a correct explanation of the
(1)
       assertion.
       If both the assertion and reason are true but the reason is not a correct explanation of the
(2)
       assertion.
(3) If the assertion is true but the reason is false.
(4) If both the assertion and reason are false.
(1) Grapes
(2) Citrus
(3) Bougainvillea
(4) Both b and c
23)
24) When single leaf arises at each node then phyllotaxy is called
(1) Alternate
(2) Opposite
(3) Whorled
(4) Pinnate
(1) Fabaceae
(2) Liliaceae
(3) Solanaceae
(4) Cruciferae
(1) Funaria
(2) Polytrichum
(3) Sphagnum
(4) Selaginella
(1) Adiantum
(2) Salvinia
(3) Azolla
(4) Dryopteris
29) Algae include unicellular forms like ..A..., filamentous forms like ...B... and colonial forms ...C... .
Here A, B and C refer to
30)
(1) Cephaleuros
(2) Gelidium
(3) Chlorella
(4) Gracilaria
(1) Psilotum
(2) Adiantum
(3) Equisetum
(4) Salvinia
(1) egg
(2) Antipodal cell
(3) Magaspore
(4) Synergid cell
35) Match the following columns & choose correct option given below
SECTION-B
1) In plant (x) small specialised root other than tap roots are associated with N2 fixing cynobacteria.
The stem are unbranced and pinnate compound leaves persist for a few year. Identify the plant (x) in
the given diagrams :-
(1)
(2)
(3)
(4)
(1) If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
(2) If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
(3) If Assertion is True but the Reason is False.
(4) If both Assertion & Reason are False.
(1) Heterospory
(2) Seed habit
(3) Fruit formation
(4) Covered seed formation
4) Sporophylls may form distinct compact structures called strobili or cones in...…
(1) Fern and Male and Female Cycas Plant
(2) Selaginella , Equisetum , Pinus and Cycas female Plant
(3) Selaginella , Equisetum , Pinus and Cycas male Plant
(4) Fern, Selaginella , Equisetum , Pinus and Cycas female Plant
a b c
                                          Female
 (2) Male gamete Pollen tube
                                          gametophyte
        Male
 (3)                mega–sporangiums pollen grain
        gametophyte
        Microspore
 (4)                  Male gametes        Embryo
        (pollengrain)
(1) 1
(2) 2
(3) 3
(4) 4
6) Which one of the following options correctly represents the type of life cycle patterns?
(1) A - Diplontic, B - Haplodiplontic, C - Haplontic
(2) A - Haplodiplontic, B - Haplontic, C - Diplontic
(3) A - Haplontic, B - Diplontic, C - Haplodiplontic
(4) A - Diplontic, B - Haplontic, C - Haplodiplontic
8)
9) Identify the types of inflorescence shown in figure and select the correct option for A and B
(1) A- Cymose ; B- Racemose
(2) A- Racemose ; B- Cymose
(3) A- Racemose ; B- Racemose
(4) A- Cymose ; B- Cymose
(1) Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
(2) Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
(3) Assertion is true but Reason is false.
(4) Both Assertion and Reason are false.
(1) Both assertion and reasons are true and reason is a correct explanation of the assertion.
(2) Both assertion and reasons are true and reason is not correct explanation of the assertion.
(3) Assertion is true but the reason is false.
(4) Both Assertion and reason is false.
13) Statement-1 :- One of the cell of megasporangium develops into a multicellular male
gametophyte. Statement-2 :- The ovule are borne on megasporophylls which may be clustered to
form the male cone.
14)
How many female nuclei participate in double fertilization?
(1) 5
(2) 2
(3) 1
(4) 3
(1) Verticillaster
(2) Spadix
(3) Catkin
(4) Hypanthodium
ZOOLOGY
SECTION-A
(1) Fibrinogen
(2) Albumin
(3) Globulin
(4) Water
5) During atrial systole in a cardiac cycle, What amount of blood is flow from atria to respective
ventricle ?
(1) 50 percent
(2) 30 percent
(3) 70 percent
(4) 100 percent
6) When the plasma of a person has both anti A and anti B antibodies the blood group of this person
would be :-
(1) A
(2) B
(3) AB
(4) O
7)
(1) Phospholipid
(2) Lecithin
(3) Cholesterol
(4) Oleic acid
12) The volume of blood present in both ventricles of the heart at the end of systole is 120 ml. The
cardiac output of this individual is 6 liters per minute, with a heart rate of 100 beats per minute.
Now, calculate the amount of blood present in the left ventricle at the end of diastole.
(1) 60 ml
(2) 240 ml
(3) 120 ml
(4) 180 ml
(1) Serum
(2) Lymph
(3) Plasma
(4) Tissue fluid
14) Assertion(A): The cardiac impulses which originates from SA node in human heart cannot
spread directly from atria to ventricles.
Reason(R): In human heart, there is no continuity between cardiac muscle fibre of atria and those
of ventricles except AV bundle.
15) If a person has 8 liter of cardiac output & 75 ml of stroke volume then what will be the heart rate
of human ?
16) The correct route through which impulse travel in the heart is :-
(1) S.A. node → Purkinje fibres → Bundle of His → A.V. node → Heart muscles
(2) A.V. Node → S.A. Node → Purkinje fibres → Bundle of His → Heart muscles
(3) S.A. Node → A.V. Node → Bundle of His → Purkinje fibres → Heart muscles
(4) A.V. Node → Bundle of His → S.A.Node → Purkinje fibres
17) Which circulation provides nutrients, O2 and other essential substances to the tissues ?
18) Statement-I : The nodal musculature has the ability to generate action potential without any
external stimuli.
Statement-II : The nodal musculature is auto excitable and generate maximum of 70-75 action
potential per minute.
      Statement-I and Statement-II are true and Statement-II is the correct explanation of Statement-
(1)
      I.
      Statement-I and Statement-II are true and Statement-II is not the correct explanation
(2)
      of Statement-I.
(3) Statement-I is true, Statement-II is false.
(4) Statement-I is false, Statement-II is true.
20) Some lipids are phosphorylated organic compound and found in cell membrane. It is :-
21) Change of pH may disturb protein structure and thus affecting its functions. Which level of
protein structure is not generally affected by change in pH ?
22) Given below are two statements : Statement-I : Erythroblastosis foetalis can be avoided by
administering anti-Rh antibodies to the foetus immediately after the delivery. Statement-II : Fibrins
are formed by the conversion of inactive fibrinogens in the plasma by the enzyme thrombin.
(1) Three
(2) Four
(3) Five
(4) Six
24) How many statements are correct from given below statements ?
A - Protein is present in acid insoluble fraction
B - Lecithin is biomacromolecule
C - Abrin is secondary metabolite
D - Cell wall of fungi is made of chitin
(1) 4
(2) 3
(3) 2
(4) 1
25)
Which of the following are characteristic features of open type of circulatory system?
I. Open circulatory system is present in arthropods and Mollusca
II. Blood pumped by the heart passes into open spaces or body cavities.
III. Large vessels is present in open type of circulatory system
IV. Flow of blood is slow
V. Flow of blood is under high pressure
26) How many organisms in the list given below have complete double circulation
 Pigeon, Frog, Human, Shark, Flying Fish, Crow, Salamander, Rabbit, Lizard
(1) Six
(2) Three
(3) Four
(4) Five
(1) Exchange of nutrient, gases between blood and cell occur through this fluid.
(2) It provide immunity at the level of interstitial space.
(3) It is an important carrier for nutrients, hormones etc.
(4) Carbohydrates are absorbed through lymph in the lacteals.
28) When a dry piece of tissue is fully burnt, all the carbon compounds are oxidised to gaseous
form and the remaining is called ‘ash’. The ash contains all of the following, except.
(1) Calcium
(2) Magnesium
(3) Potassium
(4) Nucleic acid
29) Correct match the following columns :-
Column-I                    Column-II
(A) Neutrophils             I.   20-25% of WBC
(B) Basophils               II.  2-3% of WBC
(C) Monocytes               III. 6-8% of WBC
(D) Eosinophils             IV.  0.5-1% of WBC
(E) Lymphocytes             V.   60-65% of WBC
(1) A-I, B-III, C-IV, D-II, E-V
(2) A-V, B-IV, C-III, D-II, E-I
(3) A-V, B-IV, C-I, D-II, E-III
(4) A-V, B-II, C-IV, D-III, E-I
30) A man whose blood group is not known meets with a serious accident and needs blood
transfusion immediately, which one of the blood groups will be safest for transfusion ?
(1) O, Rh–
(2) O, Rh+
(3) AB, Rh–
(4) AB, Rh+
31) Statement-I : The T-wave represents the return of the ventricles from excited to normal state.
Statement-II : The end of the T-wave marks the end of ventricular systole.
32) Which of the following are not correctly matched in a healthy person :-
(a) Stroke volume = 70 ml
(b) Period of vertricular systole = 0.5 sec
(c) End systolic volume = 120 ml
(d) Heart beat rate (normal) = 95/min
(e) Cardiac output = 5000 ml
(f) Normal B.P. = 120/80 mmHg
(g) Normal pulse pressure = 60 mmHg
(1) b, c, d only
(2) b, c, d & e
(3) Only d
(4) b, c, d, & g
33) Assertion (A) :- During joint diastole, blood from pulmonary veins and vena cava flows into the
left and right ventricle respectively through left and right atria.
Reason (R) :- Bicuspid and Tricuspid valve remain open during joint diastole that allows flow of
blood.
(1) Both (A) and (R) are correct but (R) is not the correct explanation of (A)
(2) (A) is correct but (R) is not correct
(3) (A) is incorrect but (R) is correct
(4) Both (A) and (R) are correct but (R) is the correct explanation of (A)
34)
(1) 2
(2) 3
(3) 1
(4) 4
SECTION-B
1)
Rh –ve person donated blood to Rh +ve person for the second time then. :-
Column-P Column-Q
           Glutamic
 C                             iii 1–NH2 group
           acid
           Palmitic
 D                             iv 1–COOH group, fatty acid
           acid
(1) A-iii, B-i, C-ii, D-iv
(2) A-i, B-ii, C-iii, D-iv
(3) A-iv, B-iii, C-ii, D-i
(4) A-ii, B-i, C-iv, D-iii
(1) 1
(2) 2
(3) 3
(4) 4
Column-I Column-II
6) Consider the following four statements (a-d) and select the option which includes all the correct
ones only.
(a) Ribozymes are deoxyribonucleic acids with catalytic power
(b) Oils have lower melting point and hence remain as liquid in winters.
(c) Majority of simple lipids have both glycerol and fatty acids.
(d) Arachidonic acid has 20 carbon atoms excluding the carboxyl carbon. Options :-
(1) Both Assertion and Reason are True and the Reason is a correct explanation of the Assertion.
(2) Both Assertion and Reason are True but Reason is not a correct explanation of the Assertion.
(3) Assertion is True but the Reason is False.
(4) Both Assertion and Reason are False.
8) Which amino acid has a methyl group as ‘R’ group and is considered as neutral amino acid?
(1) Glycine
(2) Valine
(3) Alanine
(4) Lysine
                                         Column-II
         Column-I
                                     (% weight of human
         (Element)
                                            body)
10) Assertion (A) :- The QRS complex represents depolarisation of the ventricles which initiates
ventricular contraction.
Reason (R) :- Number of QRS can be used to determine the heart beat rate of individual.
(1) Both (A) and (R) are correct but (R) is not the correct explanation of (A)
(2) (A) is correct but (R) is not correct
(3) (A) is incorrect but (R) is correct
(4) Both (A) and (R) are correct but (R) is the correct explanation of (A)
11) Read the following statements and select the correct option.
Statement-A : Elemental analysis shows that all the elements present in a sample of earth’s crust
are also present in a sample of living tissue.
Statement-B: The relative abundance of carbon and hydrogen with respect to other elements is
lower in any living organism than in earth’s crust.
12) Which of the following option correctly matches with the diagram ?
13) Consider the following four statements (a-d) and select the option which includes all the correct
:-
(a) Coronary Artery disease, (CAD) often referred to as Atherosclerosis
(b) Heart failure means when the heart muscle is suddenly damaged by an inadequate blood supply
(c) High blood pressure leads to heart diseases and also affects vital organs like brain and kidney
(d) Angina occurs when no enough oxygen is reaching the heart muscle.
Options :-
(1) 1
(2) 2
(3) 3
(4) 4
15)
All of the following factors can increase rate of heart beat and cardiac output except
(1) Acetylcholne
(2) Adrenaline
(3) Nor epinephrine
(4) Stimulation of sympathetic nerves
                                                                          ANSWER KEYS
PHYSICS
SECTION-A
 Q.     1         2         3          4      5     6          7          8       9        10      11         12         13        14          15     16       17        18    19     20
 A.     3         1         2          2      1     1          1          3       2        2       1          3          4         4           4      3        4         2     1      2
 Q.     21        22        23     24        25     26         27         28     29        30      31         32         33        34          35
 A.     1         2         3      1         4      4          2          2      1         3       2          4          1         2           3
SECTION-B
 Q.          36        37          38         39         40          41          42          43         44          45          46         47             48         49             50
 A.          2         2           4          3          3           4           3           1          3           2           3          1              1          2              3
CHEMISTRY
SECTION-A
Q.      51        52        53         54     55     56         57         58         59     60     61         62         63         64        65     66       67        68    69     70
A.      2         1         4          2      1      1          2          3          3      4      4          2          1          3         1      2        4         1     3      1
Q.      71        72        73         74     75     76         77         78         79     80     81         82         83         84        85
A.      4         3         3          3      3      1          4          2          2      1      1          3          1          4         2
SECTION-B
 Q.         86         87         88         89          90         91          92         93       94             95         96          97         98             99          100
 A.         1          2          3          1           3          2           1          2        3              3          1           3          2              3            2
BOTANY
SECTION-A
Q.    101     102      103       104        105    106        107     108       109        110    111        112        113    114        115       116    117      118       119    120
A.     1       3        3         3          4      1          4       1         2          2      4          4          3      2          2         3      3        2         1      3
Q.    121     122      123       124        125    126        127     128       129        130    131        132        133    134        135
A.     4       4        1         1          1      3          4       3         4          3      4          4          1      1          2
SECTION-B
Q.      136         137          138        139      140            141         142        143      144            145         146        147         148            149            150
A.       2           3            2          3        4              4           2          2        2              1           1          3           2              4              4
                                                                              ZOOLOGY
                                                             SECTION-A
Q.   151     152     153   154   155   156     157     158    159   160   161     162     163   164   165   166   167   168   169    170
A.    4       2       3     3     2     4       4       4      1     1     3       3       3     1     2     3     1     1     2      3
Q.   171     172     173   174   175   176     177     178    179   180   181     182     183   184   185
A.    1       3       2     2     3     3       4       4      2     1     1       4       4     2     2
SECTION-B
Q.     186         187     188   189     190         191     192    193     194         195     196   197     198       199         200
A.      4           3       1     4       2           3       2      3       1           1       3     4       4         2           1
                                        SOLUTIONS
PHYSICS
1)
3)
4) Theory based
8)
9)
Put
      12)
      = 140 J/S
13)
14)
15)
µ = 2tanθ
      16)
      19)
Work done by constant force does not depend on the path. It only depends on initial and final
positions. Here, initial and final positions are same. So, work done is zero
20)
Note:- Since, particle moves in the xy-plane, hence work done by the z-component of the force is
zero.
∴ L=
Now, L′ = ∴ L′ =
23)
  0
mv R =
mvR =
⇒v=
      28)
v = ωR
& I = MK2
29)
      60 π = 40 π + α (10)
      α = 2π
      (60π)2 = (40π)2 + 2 (2π)θ
θ = 500 π; η =
34)
Mg(h + S) = F.S
36)
∵e=           ⇒1=
⇒ v2 – v1 = U ... (2)
fraction ⇒ =
37)
impulse received by
M = – (impulse received by m)
38)
42)
x = 3t – 4t2 + t3
V = 3 – 8t + 3t2
at t = 0 Vi = 3
at t = 4s, Vf = 3 – 8(4) + 3(4)2 = 19
43)
τ = mg = ℓα
  ⇒ mg        =          α ⇒ α=
Acceleration of centre of mass
=α
w=
46)
47)
The maximum velocity for a banked road with friction is given by,
v2 = gr
⇒ v2 = 9.8 × 1000 ×
⇒ v =172 m/s
48)
By using Δθ = ωt + × t2
                0
  120 = (3 + 3t )4+ (3)(4)2
  t0 = 7 sec.
49)
Initial KE =
             = × 2 × (20)2 = 400
        Final KE = 0
50)
CHEMISTRY
54)
59)
60)
(A)
(B) SF4
(C)
(D) Br F3
      62)
                  (µ = 0)
78)
82)
89)
91) Fact.
      93) Kp = Kc (RT)Δng
      If Δng = 0 Kp = Kc
BOTANY
101)
NCERT Pg. # 42
107)
NCERT-XI, Pg # 35
     108)
NCERT-XII, Pg. # 35
115)
NCERT Reference:
Biology-XI, Page No.40
128)
Module 71
139)
148)
NCERT-XI, Pg. # 39
ZOOLOGY
151)
152)
153)
154)
Allen module
     155)
156)
157)
NCERT(XI) Pg # 285
158)
160)
161)
162)
163)
NCERT XI Pg # 281
164)
NCERT pg no.284
165)
166)
167)
168)
NCERT-XI, Pg # 284,285
170)
173)
Allen module.
Hyaluronic acid, hemicellulose, pectin, heparin are heteropolysaccharides.
174)
176)
177)
178)
179)
NCERT Pg#194
180)
181)
     183)
NCERT, Pg # 284
185)
187)
188)
NCERT Pg # 144
189)
NCERT Pg # 144
190)
191)
192)
194)
195)
NCERT, Pg # 286
196)
NCERT XI Pg.143
197)
NCERT, Pg # 287
     198) Pg. No. 287, 288_XI NCERT
199)