Sindh MCAT NTS 2014 LUMHS

Which one of the following statements correctly describes the transcription of DNA?

Diptera refers to a(n):

The female gamete of a flower is formed in the:

he diagram below represents the structure of a chloroplast as seen in section. Which label A,B,C,D, or E indicates the site of light reaction of photosynthesis?

Blood pressure in the glomerulus is _______ because the diameter of efferent arteriole is _______ that of afferent arteriole.

In the given diagram, which is the first cell to undergo mitosis?

The diagram shows a flower in the longitudinal section. Before they had developed fully, a plant breeder removed the structures labelled X, as shown. What is the effect of removing these structures?

Living things that converted nitrogen-containing molecules into nitrates are:

The diagram shows a generalized animal cell, which structure would be involved in the final secretion of digestive enzymes from this cell? (Question canceled in original)

Which of the following deserts is an example of a cold desert?

Destruction of all beta cells in the pancreas would cause:

When a sensory receptor receives a threshold stimulus, it will do all of the following EXCEPT:

What role does pepsin play in digestion?

Chemosynthesis is a kind of nutrition requiring:

If the sperm cell of a fruit fly has 4 chromosomes, then the number of chromosomes in each body cell is:

What happens during the light phase of photosynthesis?

Which level of protein structure maintains the helix shape of enzymes?

The action for the roots of a tree growing into a drain pipe is an example of:

A woman with normal colour vision, whose father was red green colour blind, married a red green colour blind man. What is the probability of her born child being red green colour blind?

Identify the incorrectly matched pair:

Organisms that are included in the protoctista are:

The scientific name of gumtree is Acacia nilotica and that of the katha plant is Acacia catechu. This indicates that both gumtree and katha plants are members of the:

Which of the following is/are adaptation(s) for parasitic mode of life in platyhelminthes?

Vascular cambium produces:

The diagram below is of a cell from a gametophyte undergoing division. What is the type of division and the stage?

Which of the following ideas was not part of Charles Darwin’s theory of evolution by natural selection?

During the action potential:

Why do some root cells have root hairs?

Which of the following is NOT involved in cell mediated immunity?

In sickle cell animals, the abnormal hemoglobin, differ from normal hemoglobin in:

C25H31-COO-C16H33 is the formula of:

The addition reactions shown by alkenes are examples of:

Which one of the following bond is the longest?

The IUPAC name of the given compound is:

In which of the following reaction Kp and Kc will have the same numerical value?

Consider the following system, PCl5 ⇌ PCl3 + Cl2. The unit of Kc for this reaction is:

An inorganic compound forming an organic substance on heating is:

Fat soluble vitamins are mainly stored in:

Which of the following is required as the catalyst in the decomposition of laughing gas?

The rate law expression for the reaction N2 + 3H2 → 2NH3

On heating, gypsum gives:

Halogenations of benzene can be done by:

The following reaction is called:C2H5ONa + C2H5Br —> (C2H5)2O + NaBr

In a compound X, all the bond angles are exactly 109.28˚, X is:

Melting point of alkali metals decreases with:

Which of the following atom has an ionic radius that is larger than its atomic radius?

For the reaction 2HCl ⇌ H2 + Cl2 the Kc is 1.0 x 10-5 . If the equilibrium concentrations of H2 and Cl2 are 1.2 x 10-3 M and 1.2 x 10-4 M respectively, the concentration of HCl is:

IUPAC name of Butyric acid is:

The basic structure of a crystalline substance is called;

The term -d2x / dt in the rate expression refers to the:

Which of the following statements is wrong?

In the reaction: H2 + I2 → 2HI Δ=+12.40 kJ/mole represents:

A 5% NaCl solution by weight means:

The most reactive state of H2 is:

The radius of the second Bohr orbit is:

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

Polyvinyl acetate is the polymer of:

The rate of diffusion of a gas having molecular weight just double of N2 gas is 56 mL s-1 . The rate of diffusion of N2 will be:

Which of the following is a false statement concerning an ionic compound?

Which of the following series in H atom give spectral line of 4860 Å?

Gamma rays may lose only a part of its energy in an encounter with the electron of an atom, the phenomena is known as:

The velocity of the body moving in a straight line with a constant acceleration, is 10 m/s at a certain instant ‘t’. After 5 s the velocity become 20 m/s, the velocity 3 s before ‘t’ was:

A torque which produces counterclockwise rotation is considered to be _________ and that producing a clockwise rotation is taken as ________.

The radius of 14th Newton’s ring is 1 mm, when light of wavelength 5.89 x 10-7 m is used. The radius of curvature of the lower surface of the lens is used is:

While a person lifts a book of mass 2 kg from the floor to a tabletop, 1.5 m above the floor, how much work does the gravitational force do on the book?

The angular arrangement of the space positions of the atoms in a crystal is called;

The value 24.90 represents _______ significant figure/s.

Consider the series circuit shown in the figure below. R1 and R2 are 20 and 30 ohms respectively are connected in series. The potential difference is 100 V. What is the current through each resistor?

_______ is a useful device for quick measurement of resistance. It includes a sensitive galvanometer, adjustable resistor and a torch cell connected in series between two terminals.

A parallel-plate capacitor with air between its plates has a capacitance of 2 x 10-6 F. What will be the capacitance if the capacitor is fitted with a dielectric whose dielectric constant is 3?

One thousand watts of electric power are transmitted to a device by means of two wires, each of which has a resistance of 2 ohms. If the resulting potential difference across the device is 100 volts, the potential difference across the source supplying the power is:

The length of a measuring rod is 2 when it is at rest. What will its length be if it is moving with a velocity one third of the speed of light?

Equations like x= v0xt and y= v0yt - ½ gt2 are independent descriptions of motion: one involving coordinate x and the other the coordinate y, where x and y are both dependant upon a common variable, the time 't’. Such equations are called:

One of the two forces is double the other and their resultant is equal to the greater force. The angle between them is:

When a wave goes from one medium to another medium, which one of the following characteristics of the wave remains constant?

Identify the examples of kinetic energy A moving ball can break a glass window  A striking hammer can drive a nail  A stone thrown upward can lift itself against the force of gravity

A material consisting of fissionable (or fissile) isotope is called as:

Identify the example/s of Projectile motion;I. a missile shot from a gunII. a player making a long jumpIII. a ball rolling on smooth surfaceIV. a football kicked off by a player

Every point of the spinning object moves along an arc of the circle in a small interval of time and the centers of all these circles lie along a straight line. This straight line is known as:

An electron is situated midway between two parallel plates 0.5 cm apart. One of the plates is maintained at a potential of 60 volts above the other. The force on the electron is:

For call bells in houses, a tranformer may be used to step the voltage down from _____ volt.

The length of a simple pendulum is 88.2 cm. The value of acceleration due to gravity is 9.8 m/s2. Its time period is:

A 3-cm length of wire is moved at right angles across a uniform magnetic field with a speed of 2.0 m/s . If the flux density is 5.0 teslas, what is the magnitude of the induced e.m.f?

The speed of a train is reduced from 60 km/h at the same time as it travels a distance of 450 m. If the retardation is uniform, find how much further it will travel (approx) before coming to rest? (Question cancelled in the original. Couldn’t come up with a reasonable solution myself.)

A force of 200 N is required to keep an object sliding at a constant speed of 2 m/s across a rough floor. How much power is being expended to maintain this motion?

A particle travels in a circular path of radius 0.2 m with a constant kinetic energy of 4J. What is the net force on this particle?

A strong, fixed at both ends, supports a standing wave with a total of 4 nodes. If the length of the string is 6 m, what is the wavelength of the wave?

An object 8 cm high is placed 20 cm from the converging lens whose focal length is 40 cm, the magnification in this case is:

Identify the application/s of laser;I. as surgical tools for “welding” detached retinaII. for telephone communications along optical fiversIII. for precision cutting of metals and other materials

During each cycle, a heat engine absorbs 400 J of heat from its high-temperature source and discards 300 J of heat into its low-temperature sink. What is the efficiency of this engine?

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

Identify the word or phrase that needs to be changed for the sentence to be correct:It is fascinating to watch a potter making a lump of clay into a beautiful-vase.

Why did the English language never get planted in Wales and Scotland?

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

Complete the sentences by choosing the most appropriate option:She is grieving _____ for the loss of her child.

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

Complete the sentences by choosing the most appropriate option:The children are going ______ visit the museum this afternoon.

Identify the word or phrase that needs to be changed for the sentence to be correct:He is among the better novelists in this country today.

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