UHS MDCAT 2018

The thickest chamber of the human heart is:

The enzymes required for the Kreb cycle are found in _.

Coccyx vertebrae are located in:

Cell-mediated immune response is given by:

Crossing over takes place during _ of meiosis.

During breathing, air from pharynx enters to:

Gradual breakdown of the alveolar wall leads to which type of disease in a smoker?

Which of the following holds the alpha helix of protein in its place:

If the molecule can bind to another site of the enzyme rather than the true active site, it is referred to as:

_ is the site of light-independent reaction.

When a nerve impulse jumps from one node of Ranvier to the next in a myelinated neuron, it's called _.

The ability to distinguish between two separate points/objects is:

The term “Loss of appetite” refers to disease:

They serve as a scaffold for formation of higher order chromatin structure:

Salivary Amylase begins to digest Starch to shorter polysaccharides and then to:

The chemical nature of primers used in the PCR process is _.

In viruses, a combined structure formed by core (Nucleic Acid) and capsid is:

Skull, vertebral column, ribs, and sternum forms:

S_ynthesis of microtubules increases in:

The region of the chromosome or, more specifically, the length of the DNA molecule, which has a particular function is called _.

Urea cycle helps in the the detoxification of:

Chitin which makes the exoskeleton in insects is further hardened by:

Number of salivary glands found in the human oral cavity.

Following group is the example of acoelomates:

Glycosidic bond is formed by the:

Which of the following statements is correct about the respiratory pigments?

Conversion of ammonium into nitrates is:

An area previously supporting life is made barren, the subsequent recolonization is called _.

In human female, the egg is fertilized in:

Which hormone is released in females in response to FSH from the pituitary gland?

In cross-section each centriole consists of nine (each in triplets) of:

In immunoglobulins / antibodies, Two light chains and two heavy chains are linked to each other by:

In the nervous system chemical messengers are called _.

The first part of the large intestine is:

Scapula is a:

A complete turn of the double helix of DNA comprises of:

The enzymes required in Glycolysis are present in:

Which lipid is hydrophilic and soluble?

Ribosomes are made up of _ and _.

A non-protein part which is essential for proper functioning of enzyme is called:

DNA made by joining pieces from two or more different sources is called:

The hormone which controls the uptake of Sodium ions in kidney and its maintenance in blood plasma is:

A. ATP synthesis is seen in bothB. Outer membrane has more surface area in bothC. Circular naked DNA, RNA and 70 ribosomes are seen in bothD. O_xidative phosphorylation occurs in both Which of the following statements are true for mitochondria and chloroplasts?

The capillaries of glomerulus rejoin to form an _.

How many sodium ions are pumped out in response to two potassium ions transported into the membrane?

Chance of a crossing over between two loci is directly proportional to their:

Process ensuring the survival of species over long periods of time, even though individual members of the species die.

Phages which show lysogenic cycle are known as:

Organs specialized to perform different functions but structurally alike are:

B_y PCR we mean:

If lipopolysaccharides did not appear in the wall of bacteria on staining then it will be known as _.

The low levels of surfactant produced by alveolar epithelium causes:

Deficiency of enzyme _ causes combined immunodeficiency syndrome.

Site of protein synthesis in cells are:

Keeping correct balance of ions and water in our body is called as:

There are _ number of linkage groups in humans.

The actual or preserved remains of the organisms that lived in the ancient past are called:

Which one of the following cells does not have nucleus:

These structures are involved in the breakdown of old organelles:

Which combination is the example of ball and socket joints:

In aerobic respiration which of the following is correct?

Yeasts, the unicellular fungi belongs mostly to the group:

The enzyme used by the bacteria to cut the DNA of the invading virus for its protection is:

The number and sequence of amino acids along a polypeptide chain is called _ structure of a protein.

Rod-shaped bacteria are known as _

_ is the exact position of a gene on the chromosome.

Parathormone production is controlled by the blood:

Which one of the following act as a PACEMAKER in heart:

Single ringed pyrimidines are:

Which one of the following is Multiple allelic characters?

Which statement is correct about atrial systole?

Growth in the larva of young arthropods is restricted by:

At the last step of Glycolysis, which of the following compound is formed:

NADP, nicotinamide adenine dinucleotide phosphate, is a carrier of:

When filtration is completed the waste products through distal tube of Nephrons empties to:

Blood solute potential is controlled by the following hormone.

The temperature that promotes the maximum activity of enzymes is referred to as:

Divergent evolution produces:

Tonoplast bounds which organelle:

Antivenom given after a snake bite venom is an example of:

The cisternae breaks up into vesicles from _ , _ of Golgi complex.

Which hormone causes the contraction walls of the uterus during the process of birth?

Which of the following is Unsaturated “Fatty Acid”?

When we extract Carotenoids from its source we see that it is:

When two or more alleles do not show complete dominance or both the alleles are expressing independently in heterozygotic conditions. Such a condition is called:

Taste buds on the tongue are example of:

Which of the following hormones acts on the uterus wall for thickening?

If concentration time graph of a reactant indicates a constant half life, then the order reaction with respect to that reactant is:

Which of the following catalysts is used in the below reaction?

Halothane is a halo derivative of:

The species which are produced by heterolytic bond breaking and can act as electron pair donors are known as:

The product of the concentrations of each ion in a saturated solution of a sparingly soluble salt at 298 K, raised to the power of their relative concentrations is:

The catalyst used for the manufacture of H₂SO₄ by contact process is:

Ligands having two lone pair of electrons for donation to the central transition metal ion are known as:

The stability in the following structure is due to the:

Which is the structure of polyvinyl chloride (polychloroethane)?

Nylon-6,6 is also called:

Which compound will be produced by the oxidation of ethanal by acidified K₂Cr₂O₇ ?

Alcohol in which carbon atom bonded to OH group is further attached with three alkyl group is:

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?

The standard electrode potential of hydrogen is arbitrarily taken at 298 K is _

The potential difference of an electrochemical cell is measured by:

Which of the following acts as a nucleophile in the reaction of alkyl halide with alcoholic / aqueous ammonia?

The liquid in the container has a temperature of 70°C. What will be the temperature on the Kelvin scale?

The formula which shows the simplest whole number ratio for the atoms of different elements in a compound is:

Which one will act as a strong acid?

The shape of [Co(NH₃)₆]³⁺ complex is:

Amino acids react with each other such that -COOH group of one amino acid reacts with the -NH₂ group of another amino acid to give a condensed structure as shown below: What is the name of the circled part of this structure?

3.0 mole of Calcium will contain _ g of Calcium.

Which of the following is the correct equation to calculate the relative molecular mass of a gas?

Reaction of water with quicklime results in the rise in the temperature of the system. Using the concept of an energy change, indicates the nature of the reaction?

Which one of the following compounds act as a catalyst when alcohols react with carboxylic acids.

In Period 2 and Period 3 maximum melting point shown by elements:

Which one of the following reagents is used to distinguish between aldehydes and ketones?

Gas is enclosed in a container of 20 cm³ with a moving piston. According to the kinetic theory of gases, what will be the effect on freely moving molecules of the gas if the temperature is increased from 20 to 100?

Which of these pollutants is produced by burning of coal and causes acid rain:

Role of a catalyst in a chemical reaction is to:

The essential property of a fertilizer is that is should be:

Which option shows all the molecules with bond angle 109.5 degrees:

Down the group acid-base behaviour of metallic oxides of group 2 elements changes to:

Butane molecules can have a maximum number of isomers.

Select one which is alcohol.

Which is the correct electronic configuration of Chromium ?

Which one of the following is the structure of Teflon?

Which one of the following enthalpy changes is always exothermic?

While finding the relative atomic mass, which of the following standard is used to compare the atomic mass of chlorine (35.5 amu):

Which compound is obtained by the elimination of bromopropane?

Which product is formed by the reaction of carboxylic acid with alcohol?

In an aqueous solution, amino acids exist in an ionic form as shown below:This ionic form of amino acid is known as:

Reaction mechanism of alkanes with halogens is known as;

Why is it necessary to distill aldehyde formed from oxidation of primary alcohol through acidified potassium dichromate (VI) solution or acidified sodium dichromate (VI) solution?

Electron affinity of the atom is the energy released when:

Which mechanism of reactions is shown by carbonyl compounds?

Which of the following compounds is solid at room temperature?

Halogens are being used as fire extinguishers, mild antiseptic CFCs and many other organic chemicals, Which of the following halogen is used to kill the bacteria in drinking water.

Which of the following acts as an electrophile in the electrophilic substitution of benzene with bromine?

According to Lowry - Bronsted Acid & Base Concept, H₂O is:

Which one of the following compounds is known as tertiary alcohol?

Which of the following molecules has the largest number of shared pairs of electrons?

Which of the following gas, when ignited, burns with a blue flame and is not very soluble in water?

The dilute solution of _ is called vinegar.

Percentage of nitrogen by volume in air is:

Bromination of alkene is shown in the following reaction. This reaction is used for:

The correct order of increasing reactivity of the following alkyl halides, (I) CH₃​CH₂​CH₂​Cl

(II) CH₃​CH₂​CH₂​CH₂​Br

(III) (CH₃​)₂​C(Cl)CH₂​CH₃​

(IV) CH₃​CH₂​CH(Br)CH₃​

Towards SN​₂ displacement is:

Which of the following would react with ozone in the atmosphere?

A 5 watt LED bulb converts 80% of the power into light photons wavelength 660 nm. What is the number of photons emitted from the bulb in one second.

If C_v = 5/2 R, C_p will be:

What is the instantaneous power dissipated through a resistor of resistance 10 ohm if it is connected to an AC source of frequency 15 Hz at 1/180 sec if peak value is 20 V?

A signal of -80 mV is applied to the inverting terminal of the amplifier while the non-inverting terminal is grounded. The gain of the amplifier is 25 using Rin(R₁) equal to 3 ohms and Rf(R₂) equal to 75 Ohms. What would be the value of the output signal?

When the frequency of the applied force becomes equal to one of natural frequencies of body then the body oscillates with maximum displacement this phenomenon is called:

Force is a derived quantity, its derived unit can be expressed in terms of the base units as:

E/m of an electron is given by the relationship.

Lenz’s law in electromagnetic induction is the direct consequence of the principle of conservation of:

Which material will follow the below stress-strain curve?

A wheel starts rotating from the result with an angular acceleration of 2 rads-2 till its angular speed becomes 6 rad/s. The angular displacement of the wheel will be equal to:

Coulomb's law is given by the formula:F=kq1 q2 / r2The magnitude of k having the unit of Nm2 C-2 for free space is equal to:

Simple Harmonic Motion of a body is described by which statements mentioned below:K: K.E is maximum when displacement x = 0L: P.E is maximum when x = 0M: P.E is maximum when x = ± x0

Which of the following gives the relationship between linear velocity and angular velocity?

A torch is rated 2.2 V 0.25 A. Calculate the charge passing through the bulb in one second and energy transferred by the passage of each coulomb of charge.

If one mole of an ideal gas is heated at constant pressure, then the first law of thermodynamics can be written as:

The de Broglie wavelength of an electron travelling with a speed of 1.0 x 107m/s is equal to, (h=6.6 x 10-34 Js and me= 9.1 x 10-31 kg)

Find the mean translational kinetic energy of ideal hydrogen gas at 17 degrees Celsius.

Calculate the activity (decaying atom per unit time) of radioactive strontium - 90 having 6.7 x 1021 atoms at t = 0. Decay constant of strontium - 90 is 8.3 x 10-10 s-1

If the time period of the oscillation is 20 micro-sec, then what will be the frequency of that oscillating body?

In photo-emission from a metal, if light of λ is replaced by light of wavelength λ / 4 , the maximum kinetic energy of the photoelectrons.

A cyclist is travelling at 15 ms^-1, she applies brakes so that she doesn't collide with the wall in front of her at a distance of 18 m. Calculate the magnitude of deceleration.

In a practical transformer mutual induction between primary and secondary coils takes place. In such transformer what can be deduced about the power.

If slope of velocity time graph is not constant at different points then body is moving with:

Electric potential due to 2uC charge at distance of one meter is equal to:

Kirchhoff's first law is manifestation of:

Light photons, each of energy 3.5 x 10-19J falls on the cathode of a photocell. The current through the cell is reduced to zero by taking the cathode to a potential +0.25 V relative to anode. The work function of the cathode is:

A diffraction grating has 500 lines per mm, its grating element d is equal to:

Calculate the half life of Bismuth-214 which has a decay constant of 4.3 x 10-4 s-1:

What is the main feature required by the optical fiber for the propagation of light in an optical fiber?

Two long, parallel conductors which are free to move are arranged 1.0 cm apart. A steady current of 20 A flows in each of the conductors in the same direction. The conductors:

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?

In case of half wave rectification the resistance of diode during negative half of A.C is:

Newton first law of motion is also known as:

When a potential difference is applied across the ends of a uniform wire of length l and radius r, a current I flows in the wire. If same potential difference is applied to the ends of another wire of the same material but of length 2l and radius 2r, the current in the wire is:

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?

A neutron having mass equal to a proton (mp = 1.6 x 10-27 kg) is moving in a magnetic field of intensity 1.20 x 10-3 T with a speed of 2.0 x 107 ms^-1 . What is the maximum force experienced by the neutron?

In SHM the kinetic energy of the body is maximum when:

The different magnitudes of same physical quantities are measured by comparing them to:

A metal rod of length 10.0 cm is moving at a speed of 0.5 ms^-1 in a direction perpendicular to a 0.20 T magnetic field. Find the emf produced in the rod.

Choose the BEST Option.That is just an example of what I complain _.

Choose the BEST Option.The region _ which they were passing was known as the Land of Thirst and Death.

Choose the BEST Option.I know how to _ a throat for inspection.

Choose the BEST Option.It is better for me to _ than to shed the blood of an innocent boy.

SPOT THE ERROR: In the following sentence some segments of each sentence are underlined. Your task is to identify that underlined segment of the sentence, which contains the mistake that needs to be corrected.The most important and the least difficult thing to achieve is a desire amongst individuals to limit the size of family.

SPOT THE ERROR: In the following sentence some segments of each sentence are underlined. Your task is to identify that underlined segment of the sentence, which contains the mistake that needs to be corrected.There is terror from the outset and there are all the components necessary to create a melodrama -- a dimly lit bus station, the storm accompanied by flashes of lightning and the promise of violent action or emotion.

SPOT THE ERROR: In the following sentence some segments of the sentence are underlined. Your task is to identify that underlined segment of the sentence, which contains the mistake that needs to be corrected.The king feels disturbed and on hearing these words he could not control his tears

SPOT THE ERROR: In the following sentence some segments of the sentence are underlined. Your task is to identify that underlined segment of the sentence, which contains the mistake that needs to be corrected.He had earned the reputation of being a great jester, and jests were expected from him.

SPOT THE ERROR: In the following sentence some segments of the sentence are underlined. Your task is to identify that underlined segment of the sentence, which contains the mistake that needs to be corrected.He glances back at the door, then turns his attention once more towards the paper and begins going through it casually. No error

SPOT THE ERROR: In the following sentence some segments of the sentence are underlined. Your task is to identify that underlined segment of the sentence, which contains the mistake that needs to be corrected.However, by being so long in lowest format I gained an immense advantage over the cleverer boys.

In the following question, four alternative sentences are given. Choose the CORRECT one.

In the following question, four alternative meanings of a word are given. You have to select the NEAREST CORRECT MEANING of the given word.ILK

In the following question, four alternative meanings of a word are given. You have to select the NEAREST CORRECT MEANING of the given word.

DUNCE

In the following question, four alternative meanings of a word are given. You have to select the NEAREST CORRECT MEANING of the given word.

HIATUS

In the following question, four alternative meanings of a word are given. You have to select the NEAREST CORRECT MEANING of the given word.BUFFERS

In the following question, four alternative meanings of a word are given. You have to select the NEAREST CORRECT MEANING of the given word.

ENCUMBER

In the following question, four alternative meanings of a word are given. You have to select the NEAREST CORRECT MEANING of the given word.

HECTOR

In the following question, four alternative meanings of a word are given. You have to select the NEAREST CORRECT MEANING of the given word.NEXUS

In the following question, four alternative meanings of a word are given. You have to select the NEAREST CORRECT MEANING of the given word.

PERPETUATE

In the following question, four alternative meanings of a word are given. You have to select the NEAREST CORRECT MEANING of the given word.AUGUST

In the following question, four alternative meanings of a word are given. You have to select the NEAREST CORRECT MEANING of the given word.LAMPOON

The dog sprang _ him.

I _ cricket every morning.

Demonstrate correct use of articles and prepositions Demonstrate correct use of subject-verb agreement Demonstrate correct use of writing conventions of spelling, capitalization and punctuation to clarify meaning:I advised her _ drink it.

M_y parents _ near Lahore.

The two machines _ considerably. One has an electric motor, and the other one runs on oil.

Which one has proper use of preposition?

Which of the following sentences is grammatically incorrect?

Which of the following is grammatically correct?

Pick the correct option: