The phase angle between two points in a medium is 3π/4. If the distance between these points is 20 cm, then the wavelength of the wave is?

NUMS Mock 4
Physics
Wave Motion and Sound
A) 8/15 m
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B) 15/8 m
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C) 8/15 cm
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D) 15/8 cm
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Electrons are emitted in the production of X rays by:

NUMS Mock 4
Physics
Atomic Spectra
A) Conduction
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B) Convection
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C) Thermionic emission
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D) None of these
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Heavy nucleus of atoms go through fission so that they can:

NUMS Mock 4
Physics
Nuclear Physics
A) absorb low amount of energy
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B) absorb high amount of energy
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C) reduce their binding energy nucleon
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D) increase their binding energy per nucleon
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Mutual inductance has a practical role in performance of:

NUMS Mock 4
Physics
Alternating Current
A) AC generator
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B) Radio choke
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C) DC generator
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D) Transformer
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A wire of resistance R is bent in the form of a circle the resistance between two points on the circumference of the wire and at the end of the diameter of circle is

NUMS Mock 4
Physics
Current Electricity
A) R/4
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B) R/2
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C) R
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D) 2R
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Is it possible to separate north pole only from bar magnet?

NUMS Mock 4
Physics
Magnetism and Electromagnetic Induction
A) Yes
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B) No
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C) In some cases it is possible
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D) None of these
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1 kilowatt hour =

NUMS Mock 4
Physics
Work, Power and Energy
A) 1.6 x 10-19 J
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B) 3.6×106 J
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C) 9.1 x 1031J
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D) 1.67x 10-27 J
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If the unit vectors i, j, k are perpendicular to each other therefore

i.i = j.j = k.k = ______.

I.j = j.k = k.i = ______.

NUMS Mock 4
Physics
Scalars and Vectors
A) 0 … 1
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B) 1 … 0
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A shock wave is produced due to an earthquake which makes the buildings move in the direction of the shock wave. Which progressive wave would this be?

NUMS Mock 4
Physics
Wave Motion and Sound
A) Longitudinal wave
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B) Transverse wave
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C) Material wave
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D) Particle wave
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A proton is about 1840 times heavier than an electron. When it is accelerated by a potential difference of 1kV, its kinetic energy will be:

NUMS Mock 4
Physics
Magnetism and Electromagnetic Induction
A) 1840 keV
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B) 1/1840 keV
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C) 1keV
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D) 920 keV
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The area under the extension-load graph Of an elastic material whose elastic limit has not been exceeded gives its:

NUMS Mock 4
Physics
Work, Power & Energy
A) Stress
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B) Strain energy
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C) Strain
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D) Young modulus
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Electric conduction is high in:

NUMS Mock 4
Physics
Physics of Solids
A) Solid nuclei
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B) Sugar solution
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C) Solid graphite
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D) None
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If both inputs “A” and “B” are ON and the output is also ON. This type of gate is known as:

NUMS Mock 4
Physics
Electronics
A) OR Gate
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B) AND Gate
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C) NAND Gate
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D) NOR Gate
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An object is thrown vertically upward with a velocity of 20 m/s. How much time it will take to reach the highest point?

NUMS Mock 4
Physics
Motion in Two Dimensions
A) 2 sec
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B) 4 sec
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C) 1 sec
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D) Insufficient information
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A stone of mass 2.0 kg is dropped from a rest position 5.0 m above the ground. What is its velocity at a height of 3.0 m above the ground?

NUMS Mock 4
Physics
Forces and Motion
A) 12.5 m/s
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B) 6.3m/s
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C) 9.3 m/s
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D) 16.0 m/s
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Kirchhoff’s first law is manifestation of:

NUMS Mock 4
Physics
Current Electricity
A) Law of conservation of momentum
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B) Law of conservation mass
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C) Law of conservation of energy
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D) Law of conservation of charge
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A body moving on a fluid will experience:

NUMS Mock 4
Physics
Fluid Dynamics
A) Drag force
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B) Centripetal force
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C) Centrifugal force
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D) Tabular force
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The deviation of I-V graph from straight line is due to:

NUMS Mock 4
Physics
Current Electricity
A) Decrease in temperature and decrease in resistance
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B) Increase in temperature and increase in resistance
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C) Decrease in temperature and increase in resistance
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D) Increase in temperature and decrease in resistance
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A car of mass 1200 kg initially at rest has been accelerated to a speed of 8 m/s in 16 meters. Average acceleration of the car is ______ m/s2? And force is _____ N?

NUMS Mock 4
Physics
Forces and Motion
A) 1.5 and 1500
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B) 2.5 and 2400
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C) 3.5 and 3500
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D) 2 and 2400
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In SHM the kinetic energy of the body is maximum when:

NUMS Mock 4
Physics
Oscillations and Simple Harmonic Motion
A) The body is at mean position
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B) The body is at extreme position from the mean
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C) The body is exactly half way down between mean and extreme position
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D) The body is somewhere between mean and extreme position
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A cathode ray oscilloscope is displaying an AC signal. If one wave is completed in 2 cm along X- axis and time-base setting is 10 ms/cm, then frequency of AC signal will be:

NUMS Mock 4
Physics
Wave Motion and Sound
A) 100 Hz
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B) 50 Hz
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C) 20 Hz
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D) 10 Hz
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E) 200 Hz
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Which of the following particles has greater wavelengths having the same velocity?

NUMS Mock 4
Physics
Optics, Nature of Light and Optical Instruments
A) Proton
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B) Neutron
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C) Electron
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D) Alpha particle
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A current of 2A is passing through an inductor of 2mH. Energy stored by it is:

NUMS Mock 4
Physics
Magnetism and Electromagnetic Induction
A) 8 mJ
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B) 10 mJ
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C) 6 mJ
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D) 4 mJ
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Laser beam can be used to generate three dimensional objects in a process called:

NUMS Mock 4
Physics
Optics, Nature of Light and Optical Instruments
A) Iconography
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B) Holography
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C) Logography
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D) Photography
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A man throws a ball vertically upward in the compartment of an accelerated train. The ball will fall:

NUMS Mock 4
Physics
Motion in Two Dimensions
A) ln front of him
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B) In his hand
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C) Behind him
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D) Beside him
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An element whose atomic number is same but mass number is different is called:

NUMS Mock 4
Physics
Nuclear Physics
A) Isomer
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B) Isobar
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C) Isotope
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D) Isotones
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When the output power equals to one-half of the input power, efficiency of the transformer becomes:

NUMS Mock 4
Physics
Work, Power and Energy
A) 0%
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B) 100%
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C) 50%
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D) 200%
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A pipe open at both ends has a length of 5m. The second harmonic frequency is _____. Velocity of sound in air = 340 m/s.

NUMS Mock 4
Physics
Wave Motion and Sound
A) 17 Hz
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B) 34 Hz
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C) 68 Hz
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D) 306 Hz
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When interference between thin films occurs, the path difference between two interfering rays is 2t. If ‘n’ is the refractive index of the medium, the bright circles are obtained when ________ with m = 0, 1, 2, 3, …

NUMS Mock 4
Physics
Electromagnetic Waves
A) (2m + 1) λ = 4nt
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B) (2m + 1) λ = 2nt
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C) 2m = nt
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D) mλ = 2nt
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E/m of an electron is given by the relationship.

NUMS Mock 4
Physics
Magnetism and Electromagnetic Induction
A) e/m2(VB2r2)
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B) e/m=(V/Br)2
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C) e/m=V.r/B
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D) e/m=V/Br
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If frequency of incident light is increased beyond threshold frequency, keeping light intensity constant, then:

NUMS Mock 4
Physics
Dawn of Modern Physics
A) Stopping potential increases
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B) Stopping potential decreases
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C) Stopping potential remains constant
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D) Stopping potential becomes infinite
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A mass of 20 kg is lifted from the floor to a height of 2m in 4.9 sec. Calculate the power in Watts.

NUMS Mock 4
Physics
Work, Power and Energy
A) 60 W
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B) 80 W
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C) 100 W
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D) 120 W
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In Doppler effect, if listener moves towards a stationary source then:

NUMS Mock 4
Physics
Wave Motion and Sound
A) Observed frequency is greater than original frequency
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B) Observed frequency is less than original frequency
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C) Observed frequency is equal to original frequency
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D) Observed frequency is independent of original frequency
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The chemical properties of elements depend on ________.

NUMS Mock 4
Physics
Nuclear Physics
A) Atomic number only
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B) Mass number only
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C) Atomic number and mass both
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D) Neither atomic number nor mass number
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A body moving with velocity V can be stopped by a force F in direction of it. The same body moving with velocity 5 V can be stopped by a force 5F in distance equal to:

NUMS Mock 4
Physics
Forces and Motion
A) X
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B) 5X
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C) 10X
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D) X/2
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Which of the following is the pair of isobars?

NUMS Mock 4
Physics
Nuclear Physics
A) 1H1 and 2H1
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B) 30H15 and 30Si14
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Two point charges of +5 C and -12 C attract each other with a force of 1.48 N. charge of -5 C is added to each of these charges. Now the force will be:

NUMS Mock 4
Physics
Magnetism and Electromagnetic Induction
A) 1.48 N (attractive)
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B) 1.48 N (repulsive)
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C) 2.96 (repulsive)
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D) Zero
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For a simple harmonic motion the acceleration of the body is _______ to displacement and always directed towards ________.

NUMS Mock 4
Physics
Oscillations and Simple Harmonic Motion
A) Directly proportional ; maximum position
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B) Inversely proportional ; maximum position
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C) Directly proportional ; mean position
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D) Directly proportional ; minimum position
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The phenomenon by which light travels in an optical fibres is:

NUMS Mock 4
Physics
Optics, Nature of Light and Optical Instruments
A) Reflection
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B) Refraction
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C) Total internal reflection
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D) Transmission
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Work done, due to centripetal force, for circular motion will be:

NUMS Mock 4
Physics
Circular Motion and Momentum
A) Reduced
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B) Zero
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C) Maximum
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D) Half
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Transition Elements usually show:

NUMS Mock 4
Chemistry
d and f Block Elements
A) Para magnetism
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B) Diamagnetism
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C) Ferromagnetism
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D) Both Ferromagnetism and Paramagnetism
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Which one of the following is not an isotope of hydrogen:

NUMS Mock 4
Chemistry
Atomic Structure
A) Deuterium
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B) Tritium
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C) Ortho hydrogen
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D) None of these
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Which one of the following alkaline earth metal carbonates is thermally the most stable?

NUMS Mock 4
Chemistry
s and p Block Elements
A) BaCO3
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B) MgCO3
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C) CaCO3
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D) SrCO3
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Which of the following indicate the correct variation of electronegativity?

NUMS Mock 4
Chemistry
Chemical Bonding
A) F > N > O > C
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B) F > N C
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C) F < N < O O > N > C
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Which of the following compounds is solid at room temperature?

NUMS Mock 4
Chemistry
Alcohols, Phenols and Ethers
A) Ethanol
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B) Butane
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C) Methanol
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D) Phenol
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Which of the following are the fundamental ways of transferring energy?

NUMS Mock 4
Chemistry
Thermochemistry
A) Pressure and work
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B) Volume and pressure
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C) Heat and work
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D) Pressure and heat
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Choose the correct statement:

NUMS Mock 4
Chemistry
States of Matter – Gases, Liquids and Solids
A) Diamond is the hardest and graphite is softest
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B) Graphite is the hardest while lamp black is softest
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C) Coal is the hardest and coke is softest
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D) Diamond is the hardest and coke is softest
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The value of surface tension of isopropyl alcohol is?

NUMS Mock 4
Chemistry
Chemical Bonding
A) Less than water
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B) Less than ethylene glycol
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C) less than methyl alcohol
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D) same as ethyl alcohol
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The spectrum of He is expected to be similar to that of:

NUMS Mock 4
Chemistry
Atomic Structure
A) Hydrogen
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B) Sodium
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C) Oxygen
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D) Li+
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The formula which shows the simplest whole number ratio for the atoms of different elements in a compound is:

NUMS Mock 4
Chemistry
Stoichiometry
A) Ionic formula
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B) Structural formula
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C) Empirical formula
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D) Molecular formula
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The reduction of nitrile produced a compound of formula C3H7NH2. Which one of the following compounds would be produced if the same nitrile was hydrolyzed by heating with dilute hydrochloric acid?

NUMS Mock 4
Chemistry
Alkyl Halides and Amines
A) CH3CONH2
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B) CH3CH2NH2
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C) (CH3)2CHCO2H
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D) CH3CH2CO2H
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What is formed by a series of complex reactions of ozone with water in the troposphere that are driven by sunlight?

NUMS Mock 4
Chemistry
Environmental Chemistry
A) O radical
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B) H radical
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C) OH radical
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D) H3O radical
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H2 and O2 are diffusing under the same condition how much H2 gas will diffuse?

NUMS Mock 4
Chemistry
States of Matter – Gases, Liquids and Solids
A) 4
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B) 16
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C) 32
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D) 0.5
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Which one of the following molecules has sp3 hybridization?

NUMS Mock 4
Chemistry
Chemical Bonding
A) CH4
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B) C2H4
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C) CO2
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D) C2H2
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The correct increasing order of electron affinity value of atoms is:

NUMS Mock 4
Chemistry
Chemical Bonding
A) I

The shielding effect of inner electrons is responsible for:

NUMS Mock 4
Chemistry
Atomic Structure
A) Decreasing ionization energy
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B) Having no effect on ionization energy
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C) Increasing ionization energy
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D) Increasing electronegativity
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Which of the following is least polarizable?

NUMS Mock 4
Chemistry
s and p Block Elements
A) Ne
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B) He
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C) X
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D) Kr
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What is the measure of activation energy in an endothermic reaction?

NUMS Mock 4
Chemistry
Thermochemistry
A) The energy of activation of backward reaction is less than that of forward reaction
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B) The energy of activation of backward reaction is more that that of forward reaction.
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C) The energy of activation of forward reaction is less than that of backward reaction.
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D) The energy of activation of forward – backward reaction is same.
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The carbonates of alkali metals are soluble in water except:

NUMS Mock 4
Chemistry
s and p Block Elements
A) K2CO3
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B) Li2CO3
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C) Na2CO3
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D) Rb2CO3
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The mass of proton is ______ times heavier than ______.

NUMS Mock 4
Chemistry
Atomic Structure
A) 1889, electrons
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B) 1886, electrons
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C) 1836, protons
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D) 1836, electrons
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Catalytic hydrogenation of alkenes exhibits:

NUMS Mock 4
Chemistry
Hydrocarbons
A) Substitution reaction
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B) Elimination reaction
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C) Addition reaction
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D) Condensation reaction
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Which of the following compounds undergoes racemization when treated with a chiral base?

NUMS Mock 4
Chemistry
Fundamental Principles of Organic Chemistry
A) 1-Butanol
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B) 2-Propanol
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C) 1-Phenylethanol
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D) 2-Methyl-2butanol
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Which of the following statements is true?

NUMS Mock 4
Chemistry
s and p Block Elements
A) Alkali metal hydroxides are stable to heat except LiOH
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B) CaOH is a stronger base than NaOH
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C) When NaOH is made the gas released at the cathode is C12
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D) NaOH is named as caustic soda because it reacts with fats to form soap.
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From the following, only one amino acid has two identical groups attached to its central atom. Which amino acid out of the following matches the description given above.

NUMS Mock 4
Chemistry
Chemistry of Life
A) Valine
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B) Alanine
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C) Glycine
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D) Cysteine
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The following sketch shows the variation in a physical property of third period elements against their atomic numbers:

What physical property is plotted in this sketch?

NUMS Mock 4
Chemistry
Periodicity in Elements
A) Ionization energy
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B) Melting point
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C) Ionic radius
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D) Atomic radius
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The dilute solution of ______ is called vinegar.

NUMS Mock 4
Chemistry
Acids, Bases and Salts
A) Formic acid
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B) Oxalic acid
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C) Benzoic acid
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D) Acetic acid
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Which of the following has the highest electrical conductivity?

NUMS Mock 4
Chemistry
Solution and Colloids
A) Aqueous sugar solution
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B) Solid graphite
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C) Solid sodium chloride
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D) Gaseous carbon dioxide
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Thermochemistry is very important to learn about _______.

NUMS Mock 4
Chemistry
Thermochemistry
A) Chemical Equilibrium
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B) Chemical Bonding
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C) Heat contents of a compound
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D) AlI of these options are correct
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Which is the correct electronic configuration of Chromium (24Cr)?

NUMS Mock 4
Chemistry
d and f Block Elements
A) 1s2, 2s2, 3s2, 2p6, 3p6, 4s2, 3d6
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B) 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d4
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C) 1s1, 2s2, 2p6, 3s2, 3p6, 3d6
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D) 1s2, 2s2, 2p6, 3s2, 3p6, 4s1, 3d5
Show Explanation

All the collisions between the particles of gases are elastic in nature. What is meant by “Elastic Collisions”?

NUMS Mock 4
Chemistry
States of Matter – Gases, Liquids and Solids
A) No change in the total kinetic energy
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B) The velocity of the molecules changes
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C) No change in potential energy during the collisions
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D) No change in mass during the collisions
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The osmotic pressure of equimolar solutions of BaCl2, NaCl and sucrose will be in the order:

NUMS Mock 4
Chemistry
Solution and Colloids
A) Sucrose > NaCl > BaCl2
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B) Sucrose > BaCl2 > NaCl
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C) NaCl > BaCl2 > Sucrose
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D) BaCl2 > NaCl > Sucrose
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Linear combination of atomic orbitals (LCAO) results in the formation of:

NUMS Mock 4
Chemistry
Chemical Bonding
A) Sigma bond
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B) Pi bond
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C) Bonding molecular orbitals only
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D) Bonding and antibonding molecular orbitals
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All of the following substances can act as Lewis acids except:

NUMS Mock 4
Chemistry
Acids, Bases and Salts
A) BF3
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B) H+
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C) AlCl3
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D) H2O
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The average atomic mass of Boron is 10.8. It has two isotopes of masses 10 and 11 respectively. What is the percentage of isotope with the average mass of 10?

NUMS Mock 4
Chemistry
Stoichiometry
A) 20%
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B) 60%
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C) 80%
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D) 50%
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Activation of the benzene ring in aniline can be decreased by treating with:

NUMS Mock 4
Chemistry
Hydrocarbons
A) Dil HCL
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B) Ethyl alcohol
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C) Acetic acid
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D) Acetyl chloride
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If concentration time graph of a reactant indicates a constant half life, then the order reaction with respect to that reactant is:

NUMS Mock 4
Chemistry
Reaction Kinetics
A) Zero order
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B) Half order
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C) Second order
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D) First order
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An ionic compound is most likely to be formed when:

NUMS Mock 4
Chemistry
Chemical Bonding
A) Ionization energy of A is high but electron affinity of B is low
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B) The ionization energy of A is low but electron affinity of B is high
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C) Both ionization energy of A and electron affinity of B are high
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D) Both ionization energy of A and electron affinity of B are low
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Which one of the following enthalpy changes is always exothermic?

NUMS Mock 4
Chemistry
Thermochemistry
A) Enthalpy of combustion
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B) Enthalpy of formation
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C) Enthalpy of atomization
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D) Enthalpy of solution
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Which derivative of benzene shows maximum reactivity in electrophilic substitution reactions?

NUMS Mock 4
Chemistry
Hydrocarbons
A) Benzoic acid
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B) Methyl benzene
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C) Benzaldehyde
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D) Nitrobenzene
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The word opposite in the meaning to path is:

NUMS Mock 4
English
Key Vocabulary
A) Blockage
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B) Aisle
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C) Lane
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D) Accidental
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Select the nearest correct meaning of the given word: GAUDY

NUMS Mock 4
English
Key Vocabulary
A) Bawdy
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B) Haughty
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C) Sober
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D) Garish
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Which of the following is grammatically correct?

NUMS Mock 4
English
Grammar and Punctuation
A) In the end, they found there money over they’re by the ATM.
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B) In the end, they found they’re money over their by the ATM.
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C) In the end, they found their money over there by the ATM.
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D) In the end, they found there money over their by the ATM.
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In the following sentence choose the word/phrase from the underlined options which is grammatically incorrect.

NUMS Mock 4
English
Grammar and Punctuation
A) Option A
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B) Option B
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C) Option C
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D) Option D
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In the following question, four alternative sentences are given. Choose the CORRECT option.

NUMS Mock 4
English
Grammar and Punctuation
A) After breaking the glass, Ruby said “Please don’t tell on me”.
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B) After breaking the glass Ruby said: “Please don’t tell on me.”
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C) After breaking the glass, Ruby said: “Please don’t tell on me.”
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D) After breaking the glass Ruby said: please don’t tell on me.
Show Explanation

Which of the following sentences contains a grammatical error?

NUMS Mock 4
English
A) I am going to the store to buy bread, milk, and eggs.
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B) Sarah’s favorite book is “Pride and Prejudice” by Jane Austen.
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C) The dog chased it’s tail in circles.
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D) We went to the beach yesterday and had a picnic.
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The word opposite in the meaning to presume is:

NUMS Mock 4
English
Key Vocabulary
A) Disbelieve
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B) Pretend
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C) Figure
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D) Conjecture
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By the next month, we shall ____ (have) the project.

NUMS Mock 4
English
A) Have
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B) Have had
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C) Has
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D) Having
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Select the best word to complete the sentence.

The ant marched quickly back to ____ home.

NUMS Mock 4
English
Fill in the blank
A) Its
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B) It’s
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C) Their
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D) its’
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Choose the correct answer:

NUMS Mock 4
English
Grammar and Punctuation
A) A friend of him told us the sad news of his father’s demise.
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B) Friend of him told us the sad news of his father’s demise.
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C) A friend of his told us the sad news of his father’s demise.
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D) A friend of him told the sad news of his father’s demise.
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Demonstrate the correct use of articles and prepositions:

Gold is _______ precious metal.

NUMS Mock 4
English
Grammar and Punctuation
A) A
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B) An
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C) The
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D) No article is needed
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The parents were stunned when they saw that children had created complete _____ in the bedroom.

NUMS Mock 4
English
Fill in the blank
A) Knack
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B) Groggy
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C) Dank
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D) Mayhem
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Synonym of Rookie will be:

NUMS Mock 4
English
Key Vocabulary
A) An old man
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B) A new recruit
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C) A fighter
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D) A wrestler
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Select the nearest correct meaning of the given word:

CHURN:

NUMS Mock 4
English
Key Vocabulary
A) Freeze
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B) Gum
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C) Overcast
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D) Froth
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Father must _____________ left his briefcase at the office.

NUMS Mock 4
English
Fill in the blank
A) Of
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B) Had
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C) Have
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D) Opt
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_______ is the storage form of carbohydrate in animals and humans which is equivalent to the _____ in plants.

NUMS Mock 4
Biology
Biological Molecules
A) Glycogen, cellulose
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B) Starch. cellulose.
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C) Glycogen, starch
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D) Starch, glycogen
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The autonomic nervous system controls all of the following activities except:

NUMS Mock 4
Biology
Coordination and Control
A) Digestion of food
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B) Heart beat
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C) Contraction of pupil of eye
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D) Thought
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Four events in the transmission of nerve impulses across synapses are:

I. depolarisation of the presynaptic membrane

II. propagation of postsynaptic action potential

III. reabsorption of the transmitter substance

IV. release of transmitter substance into the synaptic cleft

In which sequence do these events occur?

FIRST -> LAST

NUMS Mock 4
Biology
Coordination and Control
A) I, III, II, and IV
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B) I, IV, II and III
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C) IV, I, III and II
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D) IV, III, I and II
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Golgi complex is responsible for the formation of secretory granules in _____ cell.

NUMS Mock 4
Biology
Cell Structure and Function
A) Stomach.
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B) Liver.
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C) Pancreatic.
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D) Muscle.
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The Porifera are pore – bearing animals, commonly called:

NUMS Mock 4
Biology
Kingdom Animalia
A) Corals
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B) Sponges
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C) Hydras
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D) Anemones
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Which one of the following is common to all neurons?

NUMS Mock 4
Biology
Coordination and Control
A) A cell body which contains a nucleus
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B) A thick myelin sheath
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C) Presence of node of Ranvier
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D) Presence of Schwann cells
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Given figures shows:

NUMS Mock 4
Biology
Gaseous Exchange
A) Structure of Lenticel
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B) Hydathode showing gaseous vapour exchange
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C) Fungus reproducing by spore formation
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D) Algae reproducing by spore formation
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In genetics, the term locus refers to the ______ of the gene on the chromosome.

NUMS Mock 4
Biology
Chromosomes and DNA
A) Position
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B) Frequency
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C) Copy
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D) Inversion
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In the commercial manufacture of insulin, a human gene is inserted into which one of the following?

NUMS Mock 4
Biology
Biotechnology
A) A chromosome of a human cell
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B) A protein molecule in a yeast cell
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C) The DNA of a bacterium
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D) The nucleic acid in a virus
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Metaboric acid when heated produces:

NUMS Mock 4
Chemistry
Acids, Bases and Salts
A) B2O3
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B) HBO2
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C) H2B4O7
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D) H3BO3
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The animals that feed on organic debris from decomposing plants and animals are called:

NUMS Mock 4
Biology
Man and His Environment
A) Herbivores
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B) Carnivores
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C) Omnivores
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D) Detritivores
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Pick the correct option about Drosophila.

NUMS Mock 4
Biology
Variation and Genetics
A) The Male is larger with a pointed abdomen
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B) The female has sex combs on its front legs
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C) It has a generation time of just eight weeks
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D) Salivary gland cells have giant chromosomes in their nuclei
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Which of the following is correct in humans?

NUMS Mock 4
Biology
Reproduction
A) Both sperm and egg contain yolk
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B) All genetic information comes from sperm
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C) Sperm contains little cytoplasm
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D) Fertilization commonly occurs in the uterus
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The system responsible for fighting the pathogens is:

NUMS Mock 4
Biology
Biology and its Major Fields of Specialization
A) Muscular System
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B) Endocrine System
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C) Nervous System
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D) Immune System
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Which of these is not a reflex action?

NUMS Mock 4
Biology
Coordination and Control
A) Secretion of sweat.
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B) Salivation.
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C) Flexion due to needle prick.
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D) Blinking of eyes due to strong light.
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What do we call the cell surface membrane of a muscle fibre?

NUMS Mock 4
Biology
Support and Movement
A) Sarcolemma
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B) Plasma membrane
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C) Sarcoplasm
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D) Myofibrils
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Pseudopodia are:

NUMS Mock 4
Biology
Support and Movement
A) False feet developed in some unicellular organisms
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B) Small hairlike structures present on the unicellular organisms
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C) Long, tube like structures coming out of the mouth
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D) Suckers which are attached to the walls of intestines
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Which of the following RNA sequences would be transcribed from the DNA sequence ATGGCTAGGAC?

NUMS Mock 4
Biology
Chromosomes and DNA
A) TACGGATCCTG
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B) UAGCGAUCCUG
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C) AUGCCUAGGAC
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D) UACCGAUCCUG
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The finger like infoldings, which are formed by inner membrane of mitochondria, are called:

NUMS Mock 4
Biology
Cell Structure and Function
A) Ribosomes
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B) Matrix
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C) Porin
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D) Cristae
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At what point are two populations descending from the same ancestral stock considered separate species?

NUMS Mock 4
Biology
Evolution
A) When they can no longer produce viable, fertile offspring
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B) When they look significantly different from each other
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C) When they can interbreed successfully and produce offspring
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D) When their habitats are separated by a significantly large distance so that they cannot meet
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Arrange the following according to the level of protein structures:

a) lysozyme, b) haemoglobin, c) insulin, d) hairs.

NUMS Mock 4
Biology
Biological Molecules
A) c, d, a, b
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B) a, b, c, d
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C) d, c, b, a
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D) a, d, c, b
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The hormone which controls the uptake of Sodium ions in kidney and its maintenance in blood plasma is:

NUMS Mock 4
Biology
Coordination and Control
A) Somatotrophic Hormone
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B) Aldosterone Hormone
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C) Gonadotrophic Hormone
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D) Thyroxine Hormone
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How many fatty acid molecules are normally present in a fat or oil molecule?

NUMS Mock 4
Biology
Biological Molecules
A) 1
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B) 2
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C) 3
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D) 4
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In human gut, chylomicrons are formed by the combination of:

NUMS Mock 4
Biology
Nutrition
A) Proteins and carbohydrates
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B) Fats and proteins
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C) Fats and carbohydrates
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D) Vitamins and fats
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Which of the following diseases is sexually transmitted?

NUMS Mock 4
Biology
Bio-diversity | Variety of Life
A) Tuberculosis
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B) AIDS
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C) Dengue Fever
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D) Cholera
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Which artery supplies blood to the liver?

NUMS Mock 4
Biology
Transport
A) Pulmonary artery
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B) Hepatic artery
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C) Celiac artery
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D) Thoracic artery
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The movement of plants in response to touch stimulus is called:

NUMS Mock 4
Biology
Support and Movement
A) Hydrotropism
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B) Chemotropism
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C) Geotropism
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D) Thigmotropism
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The type of plastids found in roots of plants are _____.

NUMS Mock 4
Biology
Cell Structure and Function
A) Chloroplasts
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B) Chromoplasts
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C) Leucoplasts
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D) All of these options are correct
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Gel electrophoresis is a technique:

NUMS Mock 4
Biology
Biotechnology
A) Employed by forensic scientist to assist in the identification of the individuals by their respective type of DNA
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B) Collect all the genes found in one complete set of chromosome
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C) Is a technique to separate different sizeds fragment of charge bearing polymers (proteins, RNA or DNA)
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D) Grows single cell or a group of cells in a glass ware on artificial medium under aseptic conditions
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To overcome infertility, which technique is used?

NUMS Mock 4
Biology
Reproduction
A) In vitro fertilization.
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B) In vivo fertilization.
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C) Both Options A and B are correct.
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D) None of these options is correct.
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The structure of an enzyme is altered by which of the following inhibitors?

NUMS Mock 4
Biology
Enzymes
A) Reversible inhibitor.
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B) Competitive inhibitor.
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C) Non-competitive inhibitor.
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D) Irreversible inhibitor.
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The number and sequence of amino acids along a polypeptide chain is called _______ structure of a protein.

NUMS Mock 4
Biology
Biological Molecules
A) Quaternary
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B) Tertiary
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C) Primary
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D) Secondary
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In chemiosmosis, the proton (H+) moves from _______.

NUMS Mock 4
Biology
Bioenergetics
A) Stroma to Lumen
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B) Cytoplasm to Stroma
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C) Lumen to Stroma
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D) Stroma to cytoplasm
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The diagram shows the human urinary system.

Which substance is not found In the liquid at x In a healthy person?

NUMS Mock 4
Biology
Homeostasis
A) glucose
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B) salt
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C) toxins
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D) water
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The element in basic structure of proteins which differentiate them from carbohydrates is?

NUMS Mock 4
Biology
Bioenergetics
A) Carbon.
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B) Hydrogen.
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C) Nitrogen.
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D) None of these options is correct.
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Which trait is not sex-linked recessive:

NUMS Mock 4
Biology
Variation and Genetics
A) Haemophilia
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B) Colour blindness
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C) Hypophosphatemia
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D) TFM syndrome
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An enzyme that helps in the conversion of RNA to DNA is called:

NUMS Mock 4
Biology
Chromosomes and DNA
A) Transcriptase
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B) Polymerase
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C) Reverse transcriptase
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D) Synthetase
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The photosynthetic pigments of plants are arranged as clusters in thylakoid membranes. The reaction centers of these clusters consist of _____ molecules.

NUMS Mock 4
Biology
Bioenergetics
A) Chlorophyll
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B) ATP
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C) Carotenoids
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D) Glucose
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HIV is a:

NUMS Mock 4
Biology
Bio-diversity | Variety of Life
A) Virus
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B) Prions
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C) Viroid
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D) Venom
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Bones of the skull are joined by:

NUMS Mock 4
Biology
Support and Movement
A) Fixed joints
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B) Sliding joints
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C) Pivot joints
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D) Hinge joints
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As an essential element in living organisms, _______ ion is playing an important role in insulin secretion, the release of neurotransmitters, muscle contraction, and heartbeat regulation.

NUMS Mock 4
Biology
Coordination and Control
A) Sodium
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B) Potassium
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C) Calcium
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D) Chloride
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Among the following, which cellular organelle contains circular DNA, similar to those found in bacteria?

NUMS Mock 4
Biology
Cell Structure and Function
A) Lysosome
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B) Nucleus
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C) Nucleosome
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D) Mitochondria
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_________ is sometimes given by injection as an emergency treatment in cardiac arrest:

NUMS Mock 4
Biology
Coordination and Control
A) Acetylcholine
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B) Dopamine
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C) Serotonin
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D) Epinephrine
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A/An ______ is an organism that makes ATP by aerobic respiration if oxygen is present, but is capable of switching to fermentation if oxygen is absent.

NUMS Mock 4
Biology
Nutrition
A) Cellular anaerobe
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B) Respiratory anaerobe
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C) Obligate anaerobe
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D) Facultative anaerobe
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Which of the following photosystems is involved in cyclic photophosphorylation?

NUMS Mock 4
Biology
Bioenergetics
A) PS II
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B) PS I
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C) PS I and PS II
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D) PS III
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Select a method which causes the oxidation of chemical constituent of a bacterial cell:

NUMS Mock 4
Biology
Kingdom Prokaryote
A) Steam
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B) Dry heat
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C) Filtration
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D) Radiation
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Which of the following is not related to apoptosis?

NUMS Mock 4
Biology
Growth and Development
A) Loss of tail of developing humans embryos
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B) Loss of tissues between developing digits
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C) Controlling the number of neurons
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D) None of the given options
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DNA polymerase enzyme for PCR is isolated from bacteria, Thermus aquaticus, because;

NUMS Mock 4
Biology
Biotechnology
A) It can work at high speed.
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B) It can withstand high denaturation temperature.
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C) It can withstand low denaturation temperature.
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D) It can be used again and again.
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The gene which controls the ABO group has how many alleles in an individual?

NUMS Mock 4
Biology
Variation and Genetics
A) 1.
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B) 2.
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C) 3.
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D) 4.
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In the pedigree of a family shown above, brown eyes are indicated as white circles and blue eyes as dark circles. Javeria and Juhi are twins. From this chart, it can be determined that:

NUMS Mock 4
Biology
Variation and Genetics
A) Tahir and Mary are homozygous for brown eyes
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B) Jawaria and Juhi are identical twins
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C) Juhi is heterozygous for blue eyes
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D) Juhi is homozygous for blue eyes
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During the formation of an ovum nondisjunction of the sex chromosomes occurred the ovum was then fertilized by a normal Y-bearing sperm cell which one of the following shows the sex chromosome complement of the resulting zygote?

NUMS Mock 4
Biology
Cell Cycle
A) XO
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B) XXY
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C) XXXY
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D) XXYY
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High level of _____ and _____ in the blood and the contributing factors in the formation of kidney stones.

NUMS Mock 4
Biology
Homeostasis
A) Calcium, oxalate
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B) Calcium, magnesium
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C) Calcium, sodium
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D) Sodium, sulphate
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Which one of the following is a fish?

NUMS Mock 4
Biology
Kingdom Animalia
A) Flying fish
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B) Salmon
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C) Sea horse
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D) All of the above
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The scientific name of thorn Apple is?

NUMS Mock 4
Biology
Kingdom Plantae
A) Sycopodium phlogmaria
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B) Anthocoros fusiform
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C) Ginkgo biloba
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D) Datura alba
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At what phase the DNA content of a cell is doubled?

NUMS Mock 4
Biology
Cell Cycle
A) Prophase
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B) Interphase
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C) Anaphase
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D) Telophase
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The region of the chromosome or, more specifically, the length of the DNA molecule, which has a particular function is called _______.

NUMS Mock 4
Biology
Chromosomes and DNA
A) Kinetochore
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B) Locus
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C) Allele
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D) Gene
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