Sindh MCAT NTS 2015 DUHS and JSMU

The diagram shows a section through the human brain.

5 different amino acids, numbered 1, 2, 3, 4, and 5, below from the following sequence in the path of a polypeptide chain:  1-2-3-4-2-5-3 Messenger RNA codon, which correspond to the amino acids, are: amino acid 1 UGU amino acid 2 GAU amino acid 3 CAC amino acid 4 UAG amino acid 5 AAG Which one of the following DNA bases sequences could provide the code for the given section of the polypeptide?

The following sequence of events occurs at the neuromuscular junction. nerve impulse -> release of V -> end plate potential -> W produced in muscle fibre -> X release from sarcoplasmic reticulum -> Formation of Y -> muscle contraction.Which one of the following shows the correct sequence from V -> Y?

The diagram shows some similarities between golgi apparatus, mitochondria and suicide sacs. Which one is correct?

The diagram shows a simplified nitrogen cycle. During which stage does decomposition start?

Identify the bones in which the connecting joints are freely movable joints?

A short piece of DNA 30 base pairs long was analyzed to find the number of nucleotide bases in each of the polynucleotide strands. Some of the results are shown below. How many nucleotides containing guanine were present in strand 1?

The diagram shows part of a flower after it has been pollinated:

Dietary fibre passes through several structures after leaving the stomach. In which order does the dietary fibre pass through the structures?

The scientific name of Thorn Apple is:

Consider the following statements regarding blood pressure:1. It is the pressure exerted by the blood on the walls of any vessel.2. It decreases in the arteries as the distance from the heart increases.3. It is lower in the capillaries than in the arteries.4. It is usually lower in women than in men.Choose the correct statements.

The diagram shows a cell at anaphase 1 of meiosis. Which diagram shows a normal gamete that could be produced from this cell?

The following statements are about enzymes: 1. They are globular proteins except riboenzyme2. They can be inhibited3. They are formed in the smooth endoplasmic reticulum 4. There are only found attached to Plasma membranes in the cell  Which statements are correct for all enzymes?

During the formation of an ovum non-disjunction 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?

Antheridia and archegonia are _____ organs in bryophytes.

Class Elasmobranchi have an outer covering of?

Which one of the following types of cell are found in secondary xylem of angiosperms?

Which one of the following combinations of statements is true of saccharides in living organisms?

The diagram shows a molecule. Which substance might include the above molecule?

The following observations refer to evolution:   Inherited variations that are favoured in a particular environment are passed on. There is a struggle for existence. Across time, inherited variations may accumulate, causing gradual changes in the organism.   Although populations tend to overproduce, they remain more or less constant in numbers from generation to generation. In what sequence should the statement be placed to support the Darwin theory of evolution?

The egg of a chick is laid at one of the following stages:

The diagram shows some of the muscles and bones of the human arm.

What happens to the volume of the thorax and the air pressure in the lungs during breathing in?

Which of the following is correct for the given structure?

Which of the following statements is true about Savannah?

Which diagram illustrates the process of active transport?

The diagram shows the inheritance of haemophilia in a family. What is the genotype of person 7?

An example of passive acquired immunity is?

The floral formula of family caesalpiniaceae or casia family is:

Four words are shown below: Facultative obligate saprophytes parasites These words can be used in the basis of P Q R and S to complete the sentence below.  Organisms that depend on living plants and animals for the nutritional requirements are known as…. P… Parasites, which depend on the nutrition entirely on other living organisms, are known as...Q... or total parasites and those which depend for these requirements partially on other living organisms are called...R...or partial parasite on the other hand the plants which depend on dead or rotten organic remains of plants and animals are called...S…

The ionization of Hydrogen atom gives:

Magnesium oxide is used in:

When methylbenzene is treated with bromine in the presence of a catalyst, a mixture of two monobromo isomers is formed. What are the structures of these two isomers?

The Balmer series lies in which region of the electromagnetic spectrum?

What are the major products of the reaction shown below?

Physical properties of Ethyne is/are:

Which of the following best describes the emission spectrum of atomic hydrogen?

Bond energy between nitrogen atoms in N₂ molecule is:

What is the major product of the nitration reaction below?

Which is most basic in character?

Ethyl alcohol when treated with excess concentrated H2SO4 may give:

The IUPAC name for the structure below ends with what suffix?

Oxygen does not react with:

Strontium lies between calcium and barium in Group II A in the Periodic Table. Which of the properties could be predicted for strontium?

Atomic number of carbon is 6 and hydrogen is 1, How many electrons are present In 1.6 grams of methane?

Commercial hydrogen is obtained from:

H₂O has higher boiling point than HF because?

How many electrons can have the values n=2, l=1, and s=+½ in the configuration 1s2, 2s2, 2p3?

The Unit cell with crystallographic dimensions a=b≠c , α=β=γ=90 degrees is:

If uncertainty in the position of an electron is zero, the uncertainty in it's momentum is?

Which of the molecules shown below are aromatic?

NH3 (amine) is an example of:

The hybridization of atomic orbitals of N₂⁺, NO₃^-, and NH₄⁺ are, respectively:

The compound in which carbon uses only its sp³ - hybrid orbitals for bond formation is?

A bottle of cold drink contains 200 ml liquid in which CO2 is 0.1 molar. Suppose carbon dioxide behaves like an ideal gas, the volume of dissolved carbon dioxide at STP is?

The table shown below gives the bond dissociation energies of single covalent bonds of carbon atoms with elements A, B, C, and D. Which of the following has the smallest atom?

How will the equilibrium of the following reaction be affected if additional nitrogen is added?N2(g) + 3H2(g) ⇌ 2NH3(g)

The dipole moments of the given molecules (BF₃, NF₃, NH₃) are such that:

The solubility product for BaSO4, at 18-25°C is:

Surface tension in a liquid is caused by?

Calculate the final kinetic energy when a shop keeper pushes a fruit crate, initially at rest, towards another shopkeeper by exerting a constant horizontal force F of magnitude 5N through a distance of 1 meter.

Kelvin is the unit of thermodynamic temperature, which is ________ of the thermodynamic temperature of the triple point of water.

mλ=2dsin(θ) this relation is called as

A 20.0 cm wire carrying a current of 10.0 A is placed in a uniform magnetic field of 0.30 T. If the wire makes an angle of 40° with the direction of the magnetic field, find the magnitude of the force acting on the wire? ( sin 40° = 0.642)

What will be the gravitational force of attraction between two balls each weighing 5 kg when placed at a distance of 0.33 m apart. (G = 6.673 x 10-11 Nm2/kg2 )

Consider the following examples of motion: I. The daily motion of the earth about its own axis. II. The motion of planets around the sun. III. The sugar cane crushing machine is run by a camel that moves in a circular path around the machine. IV. Rotation of flywheel about its axle. Which of the following is correct?

An apple is thrown at a speed of 30 m/s in a direction 30° above the horizon. Find out its horizontal range. (g= 9.8 m/s2)

A 1000 kg vehicle is turning around a corner at 10 m/s as it travels along an arc of a circle. If the radius of the circular path is 10 m, how large a force must be exerted by the pavement on the tires to hold the vehicle in the circular path?

A microscope has an objective of 10 mm focal length and an eyepiece of 25 mm focal length. What is the distance between the lenses if the object is in sharp focus when it is 10.5 mm from the objective?

A gas is enclosed in a container fitted with a piston of cross-sectional area of 0.10 m2. The pressure of the gas is maintained at 8000 N/m2. When heat is slowly transferred, the piston is pushed up through a distance of 4.0 cm. If 42 J heat is transferred to the system during the expansion, what is the change in the internal energy of the system?

Two capacitors C₁ (6μF) and C₂(12μF) are in series across a 180 volts d.c. supply. Calculate the potential difference across each capacitor (C₁ and C₂).

The potential difference between the terminals of a battery in an open circuit is 2.2 V. When it is connected across a resistance of 5.0 Ω, the potential falls to 1.8 V. What is the internal resistance of the battery?

A train is approaching a station at 90 km/h sounding a whistle of frequency 1000 H_z. What will be the apparent frequency heard by the listener sitting on the platform if the train moves away from the station at the same speed? (speed of sound= 340 m/s)

A particle carrying charge of 2e falls through a potential difference of 3.0 V. Calculate energy acquired by it.

A circuit in which there is a current of 10 amperes is changed so that the current falls to zero in 0.5 seconds. If an average e.m.f. of 400 volts is induced, what is the self-inductance of the circuit?

Identify the instrument/s which is/are used for the measurement of resistance:I. Wheatstone BridgeII. Meter BridgeIII. Post office BoxIV. Ohmmeter

The resultant of two forces has magnitude of 20N. If one of the forces is of magnitude 20√3 N and makes an angle of 30o with the resultant then, the other forces must be of magnitude:

In a certain circuit, a transistor has a collector current of 10mA and a base current of 40μA. What is the current gain of the transistor?

X-rays are also known as:

The total outward flux over any closed hypothetical surface called _____ is equal to the total charge enclosed divided by ε irrespective of how the charge is distributed.

A simple pendulum completes one oscillation in 4 seconds. Calculate its length when g= 9.8 m/s2, as the time period of a simple pendulum is given by T = 2 π √(l/g)

0.75 A current flows through an iron wire when a battery of 1.5 volts is connected across its ends. The length of the wire 5.0 m and its cross-sectional area is 2.5 x 10-7 m2. What is the resistivity of iron?

A particle of mass 5 mg moves with a speed of 8 m/s. Calculate its de Broglie wavelength (h = 6.63 x 10-34 J s).

When we measure the nuclear masses and compare them with the masses of the constituent nucleus in free states, the mass of the nucleus is always less than the mass of the constituent nucleons. The difference in mass is known as:

________ are very high-energy electromagnetic radiations of the extremely short wavelength emitted from the nuclei of radioactive atoms originating from the high energy transitions of the nucleons in the nuclei.

A 100 kg golf ball is moving to the right with a velocity of 20 m/s. It makes a head on collision with an 8 kg steel ball, initially at rest. The two balls get stuck together. What will the velocity of these two balls after collision?

Two bodies ‘x’ and ‘Y’ are attached to the ends of a string which passes over a pulley so that the two bodies hang vertically. If the mass of the body ‘x’ is 5 kg and that of body ‘Y’ is 4.8 kg. Find the acceleration?(g = 9.8 m/s^2)

Complete the sentences by choosing the most appropriate option, from the given lettered choices (A to D) below each. I was having a cup ___ tea when he knocked on the door.

Choose the word or phrase most nearly opposite in meaning to the capitalized one. CONVICT:

Read the passage and answer the following question:In earlier times, when every substance was believed to have its own qualities, there was no difficulty in believing that some substances were endowed with life, others not. Wood was wood, and water was water, and though transformations did occur, as in the disappearance of wood in the fire, they were not surprising in a world where the most miraculous changes were taking place under everyone’s every day. There was nothing but ‘doth suffer a sea-change into something rich and strange’. A seed put into the ground became in a short time a plant with leaves and flowers: the white and yolk of an egg turned into the flesh and bones and feathers of a chicken, which, no sooner was the shell cracked, jumped out and started running about.  There was nothing but ‘Doth suffer a sea-change into something rich and strange’ means:

Identify the word or phrase that needs to be changed for the sentence to be correct. The bus stopped too take up three or four people who were waiting by Post office. No error

Identify the word or phrase that needs to be changed for the sentence to be correct.If the children do their homework quickly, they will have time to watch television. No error

Choose the word most similar in meaning to the capitalized one. RELIEVED:

Choose the word or phrase most nearly opposite in meaning to the capitalized one.AMUSED:

Choose the word most similar in meaning to the capitalized one. BRUTAL:

Complete the sentences by choosing the most appropriate option, from the given lettered choices (A to D) below each. The milkman ____ many bottles of milk to our school every day.

Read the passage and answer the following question:In earlier times, when every substance was believed to have its own qualities, there was no difficulty in believing that some substances were endowed with life, others not. Wood was wood, and water was water, and though transformations did occur, as in the disappearance of wood in the fire, they were not surprising in a world where the most miraculous changes were taking place under everyone’s every day. There was nothing but ‘doth suffer a sea-change into something rich and strange’. A seed put into the ground became in a short time a plant with leaves and flowers: the white and yolk of an egg turned into the flesh and bones and feathers of a chicken, which, no sooner was the shell cracked, jumped out and started running about.  Some substances are alive, and some are not.Which of the following statements best describes this belief?