Sindh MCAT NTS 2013 LUMHS

Which cells become memory cells in the immune response?I B-lymphocytesII T-lymphocytesIII Phagocytes

Which of the following is mismatched?

Which is the correct sequence of passageways through which air travels during inhalation?

A species of rose plants can be purchased as red, white, or pink flowering plants. Assuming that large petals is a dominant trait, which is the genotype of a plant with pink flowers and large petals? [ W = white flowers, w = red flowers, L = large petals, I = small petals]

Which type of molecule is the end product of translation?

Which features enable an organism to be identified as a prokaryote?I Cell wallII Circular DNAIII NucleusIV Ribosomes

Pheretima posthuma is the biological name for _________.

What occurs when sucrose is broken down to monosaccharides?

Which of the following is constructed from 5’ to 3’?

Which of the following associations between the hormone and its role is FALSE?

Which part of the central nervous system controls the body’s water balance?

It is an example of palindromic sequence:

The diagram shows a process involving DNA. What is the name of the process and the stage in the cell cycle at which it occurs?

Which features enable the aorta to withstand ventricular systole?

Which bones meet at the elbow joint and what kind of movement do they allow?

On which date is a woman most likely to ovulate if the first day of menstrual loss was 1 February?

What is the ecological definition of the term community?

Why is yeast used in bread - making?

Cell bodies of ______ neurons are always located inside the CNS.

After the starch is ingested, in which order do these processes occur?

What causes the observed change in skin temperature on exposure to cold air?

The diagram shows a cell of an organism formed by reduction division. What is the diploid number for this organism?

Common to the Krebs cycle and glycolysis in eukaryotes is:

Class of annelida whose members are exclusively marine?

Of the following, which one best describes phenylketonuria?

Select the correct statement:

According to normal genetic prediction a color blind girl (Xc Xc) must have had a father whose genetic makeup was:

Some chemicals, used to stop tumour growth, work by preventing the DNA double helix from uncoiling and separating. During which stage of the cell cycle would they act?

Which statement concerning transpiration is correct?

Which pair contains organisms of different phyla?

The pair that yields the same gaseous product on reaction with water:

Alkyl halides are more reactive than alkanes. The reason being:

Which of the following values of heat of formation indicates that the product is most stable?

Which of the following represents the correct structure for para-nitrotoluene?

A limiting reactant is the one which:

A property of a system that depends only on the state of a system is called a:

Which of the following has hydrogen bonding?

The oxidation numbers of sulphur in S8 , S2F2 , H2S, respectively are:

Which of the following pairs has similar empirical formula?

A 8 grams of O2 gas contains:

The following reaction sequence is typical of SN1 reactions. Identify the rate limiting step(s).

Interstitial compound is formed by:

Hydrogen diffuses six times faster than gas A, The molar mass of gas A is:

What is the correct order of the boiling points of the following compounds?I n - hexaneII 2 - methylpentaneIII 2,2 - dimethylbutaneIV 3- methylpentane

Which of the following will have the largest ionic radius?

What functional groups ore present in the compound below ?

Which substance has diffused melting point?

Chlorine - type laundry bleaches are aqueous solutions of:

When HNO3 is dropped into the palm and washed with water it turns into yellow. T shows the presence of:

The amount of energy required to remove the most loosely bound electrons from an isolated gaseous atom from an element is known as:

The correct I.U.P.A.C name of diethyl acetylene is:

A reactant in a chemical reaction is non-conductor to electricity, colourless and non-responsive towards plane polarised light but can absorb ultraviolet rays. Then the best technique for the determination of initial rate of such a reaction:

In the figure below, what is the correct name for the molecule shown in the Haworth projection?

In the reaction: H2(g) + I2(g) -> 2HI(g) ΔH = +12.40KJ/mole represents:

With increase in the value of Principal Quantum Number (n), the shape of the s-orbitals remains the same although their sizes:

Chloroform (CHCl3) is miscible with acetone (CH3COCH3) due to:

Fats and oils are liable to spoilage and give a peculiar odour of an aldehyde, It is mainly due to the:

If an alkali is added to an aqueous solution that contains both dichromate and chromate ions in equilibrium the reaction will shift towards:

The reaction of 1 mole of diethyl ether with excess hydrobromic acid results in the production of:

Which of the following principles limits the maximum number of electrons in an orbital?

A refrigerator has to transfer an average of 263 J of heat per second from -10 C to 25 C. Calculate the average power consumed. Assume that the refrigerator is ideal.

When X-rays are scattered by electrons their wavelength increases. This phenomenon is called:

In metallic conductors, there is always a large number of _______ detached from their parent atom, which constitutes a kind of electron gas.Free electronsDispersed electronsInactive electrons

The material consisting of the fissionable isotope is called as:I ModeratorII Reactor fuelIII Coolant

A car is traveling with uniform acceleration along a straight road. The road has marker posts every 100 m. When the car passes one post, it has a speed of 10 m/s and when it passes the next one, its speed is 20 m/s. What is the car's acceleration?

The ratio of limiting friction to the normal reaction acting between two surfaces in contact is called:

A solenoid is a coil of insulated copper wire wound on a ___________.

The atomic number of an atom is the number of:

A 2,500 kg car traveling at 20 m/s crashes into a 6, 000 kg truck that is originally at rest. What is the speed of the truck after the collision, if the car comes to rest at the point of impact? (Neglect the effects of friction.)

A line of force is an imaginary line drawn in such a way that the direction of the tangent at any of the points is the same as _______ at that point.

A current of 8 amperes is flowing in a wire. How many electrons pass a given point in the wire in one second, if the charge on an electron is 1.6 x 10-19 coulomb?

Which of the following quantity/ies is/are not vector?

A ball is projected vertically upwards from the ground with a velocity of 20 m/s. How high will it go? (Take g = 10 m/s2)

A capacitor is charged to a potential difference of 12 V. It delivers 40% of its stored energy to a lamp. What is the final potential difference across the capacitor?

A coil of 1200 turns is threaded by a flux of 12 x 10-5 Webers, if this flux is reduced to 3 x 10-5 webers in 0.015 seconds. The average induced e.m.f is:

A body of mass 2kg, initially at rest, is acted upon simultaneously by two forces, one of 4 N and the other of 3 N acting at right angles to each other. Find the kinetic energy of the body after 20 seconds.

In an adiabatic compression process, the internal energy of the gas:

Find the maximum speed at which a car turns around a curve of 30 m radius on a level road if the coefficient of friction between the tires and the road is 0.4.

An astronaut weighs 700 N on Earth. What is the best approximation of his new weight on a planet with a radius that is two times that of Earth, and a mass three times that of Earth?

Two springs fixed at one end are stretched by 5 cm and 10 cm, respectively, when masses 0.5 kg and 1 kg are suspended at their lower ends. When displaced slightly from their mean positions and released, they will oscillate with time periods in the ratio

When the magnification of a lens is less than 1, it means that the image is actually:

In the application of projectile motion, the small-angle produces _____ trajectory and the large angle produces ____ trajectory.

A raindrop of mass m is falling vertically through the air with a steady speed v. The raindrop experiences a retarding force kv due to the air, where k is a constant. The acceleration of free fall is g. Which expression gives the kinetic energy of the raindrop?

A diffraction grating has a spacing of 1.6 x 10-6 m. A beam of light is incident normally on the grating. The first order maximum makes an angle of 20 degrees with the undeviated beam. What is the wavelength (approx) of the incident light? (sin20 = 0.342)

A child of mass ‘m’ stands on a board of mass ‘M’ which lies on a frictionless horizontal surface. The child starts walking with a speed ‘v’ with respect to the ground. With what speed does the board recoil?

Initially, four identical uniform blocks, each of mass m and thickness h, are spread on a table.How much work is done on the blocks in stacking them on top of one another?

Bragg’s equation is used to find out the spacing ‘d’ between atomic similar parallel planes of a crystal. Which option gives the correct formula?

Identify the use/s of radiation: Identify the use/s of radiation:I PolymerizationII Sterilization and Food PreservationIII Radiography

When a relaxed human eye produces an image of a distant object behind the retina, this abnormality is known as:

A sound wave of frequency 400 Hz is traveling in a gas at a speed of 320 ms-1 . What will be its wavelength?

Identify the word or phrase that needs to be changed for the sentence to be correct: I am to busy to take you to the theatre this evening. No error

Identify the word or phrase that needs to be changed for the sentence to be correct: You can’t fight a dual nowadays; you are behind the times. No error.

Older people often affirm that the modern world is suffering from too much entertainment, or at least from too much ready-made entertainment. Instead of doing things for ourselves, the tendency nowadays is to sit and listen to, or watch, a few artists and athletes doing things for us. The gramophone, the radio, the cinema and the television are recent inventions which have entirely changed the pattern of entertainment in the modern world. Modern means of travel, too, have made it possible for large numbers of people to assemble in one place at one time to watch open-air sporting events. Is this altogether a good thing? In the old days people had to provide their own amusements.According to the author the pattern of entertainment changed because of: Old people’s views about modern entertainmentNovel interventionsPeople becoming lazyModern means of travel

Choose the word most similar in meaning to the following word:CRUEL

Choose the lettered word or phrase that is most nearly opposite in meaning to the following word:ENORMOUS

Older people often affirm that the modern world is suffering from too much entertainment, or at least from too much ready-made entertainment. Instead of doing things for ourselves, the tendency nowadays is to sit and listen to, or watch, a few artists and athletes doing things for us. The gramophone, the radio, the cinema and the television are recent inventions which have entirely changed the pattern of entertainment in the modern world. Modern means of travel, too, have made it possible for large numbers of people to assemble in one place at one time to watch open-air sporting events. Is this altogether a good thing? In the old days people had to provide their own amusements It can be inferred from the passage that old people are:

Choose the word most similar in meaning to the following word:.PORTER

I like our professor’s lectures because he ________ the really important points clearly.

Choose the lettered word or phrase that is most nearly opposite in meaning to the following word:BRIGHT

New _________ have brought to pass amazingly rapid changes in our means of communications.