UHS MDCAT 2013

The simplest independent unit of life is known as:

The process by which unwanted structures within the cell are engulfed and digested within the lysosome is known as:

The plants having foreign DNA incorporated into their cells are called:

Pasteurization technique is widely used for preservation of:

The production of genetically identical copies of organisms by asexual reproduction is called:

The _ model of plasma membrane suggests that proteins are embedded in lipid bilayer.

The function of nucleolus is to make:

The enzymes of lysosomes are synthesized on:

Centrioles are made up of _ microtubules:

Which of the following structures is absent in higher plants and found in animal cells:

The soluble part of cytoplasm or fluid that remains when all organelles are removed is known as:

The outer membrane of the nuclear envelope is at places continuous with the:

Down's syndrome is a result of non-disjunction of_ pair of chromosomes that fails to segregate:

_ is most abundant carbohydrate in nature.

Which of the following is a keto sugar:

Amino acid in which the R-group is hydrogen is:

Acyl-glycerols like fats and oils are esters formed by condensation reaction between:

Which of the following is purine:

If the co-factor is covalently or tightly and permanently bonded to enzyme then it will be called:

Optimum pH value for the working of pancreatic lipase is:

The view that active site of an enzyme is flexible and when a substrate combines with it, cause changes in enzyme structure is known as:

All coenzymes are derived from:

Reverse transcription is used to make DNA copies of:

Antibiotics are produced by fungi and certain bacteria of group:

Which of the following bacteria have more lipids in their cell wall?

Fungi which cause thrush in humans:

When beef which is not properly cooked is consumed by humans, they become infected by:

Sleeping sickness in humans is caused by:

Schistosoma is a parasite that lives in the _ of the host.

The cavity between body wall and alimentary canal is:

The layer which forms the lining of digestive tract and glands of digestive system is:

Which one of the following vitamins is produced by microflora of large intestine?

_ is activated to_ by Enterokinase enzyme secreted by the lining of duodenum:

Which of the following are absorbed in the large intestine?

Saliva is basically composed of water, mucus, amylase and:

The total inside capacity of lungs is _ for man.

The average life span of red blood cell is about:

The lymphatic vessels of the body empty the lymph into blood stream at the:

Right atrium is separated from right ventricle by:

Sites of filtration in nephron are:

Antidiuretic hormone increases the reabsorption of:

Active uptake of_ in the ascending limb or thick loop of Henle is promoted by the action of aldosterone:

The process through which the body maintains the internal environment from the fluctuations of external environment is called as:

Active pumping out of Na+ occurs at which part of nephron:

The structures which respond when they are stimulated by impulse coming through motor neuron are:

Thalamus and cerebrum are the part of:

There is also EVIDENCE that high levels of _ may contribute to the onset of Alzheimer's disease.

L-DOPA or Levodopa is used to get some relief from?

Spermatogonia differentiate directly into

Treponema pallidum causes

What is the location of interstitial cells in testes?

A type of cells in human testes which produce testosterone are called

The hormone produced from corpus luteum is:

The length of myofibril from one Z-band to the next is described as:

The Ca++ ions released during a muscle fiber contraction attach with:

The joint that allows the movement in several directions is called:

Where can we find H zone in the figure of fine structure of skeletal muscle's myofibril?

First vertebra of cervical region of vertebral column is known as:

Chemically, insulin and glucagon are:

Hormones secreted by anterior pituitary and which controls the secretion of hormones of other endocrine glands are known as:

Alpha cells of Islets of Langerhans secrete hormone called:

Which of the following is the function of glucagon hormone?

In passive immunity which of the following components are injected into body?

Which part of the antibody recognizes the antigen during immune response?

Two identical light chains and two identical heavy chains in antibody molecule are linked by:

Antibodies are produced against invading cells by:

In the structural diagram of an antibody molecule which portion is occupied by variable chains?

Every molecule of NADH, fed into ETC produces:

The end product of anaerobic respiration in humans and other mammals is:

A biochemical process which occurs within a cell to breakdown complex compounds to produce energy is called:

Which part of chlorophyll molecule absorbs light?

The DNA molecule formed from messenger-RNA by reverse transcriptase is called?

The agent which separates the two strands of DNA in PCR is?

C_ystic fibrosis patients lack a gene that codes for trans-membrane carriers of?

The phage commonly used as a vector in genetic engineering is?

Restriction endonucleases are naturally occurring enzymes of:

In an ecosystem mycorrhizae are an example of:

As a result of destruction of ozone layer there is significant increase in:

Higher rate of a biological activity in a nutrient rich pond water is called:

Living part of ecosystem is:

A living association between two living organisms of different species which is beneficial to both the partners is called:

When a gene suppresses the effect of another gene at another locus the phenomenon is termed as:

Phenylketonuria is an example of:

A situation in which one gene affects two or more unrelated characters is called:

The mutation which causes change in the sequence of DNA at a given position is called:

Hydrogen burns in chlorine to produce hydrogen chloride. The ratio of masses of reactants in the chemical reaction is:H₂ + Cl₂ → 2HCl

A sample of Neon is found to exist as 20Ne, 21Ne, 22Ne. Mass spectrum of ‘Ne’ is as follows: What is the relative atomic mass (Ar value) of Neon?

The coordination number of Na⁺ in NaCl crystal is:

There are four gases H₂, He, N₂ and CO2 at 0 °C. Which gas shows greater non-ideal behavior?

Number of electrons in the outermost shell of chloride ion (Cl^-) is:

According to valence shell electron pair repulsion theory, the repulsive forces between the electron pair of central atom of molecule are in the order:

In crystal lattice of ice, each O-atom of water molecule is attached to

Reactants have high energy than products in:

If 18.0 g of glucose is dissolved in 1 kg of water, boiling point of this solution should be:

Molal freezing point constant of water is:

In the figure given below, the electron flow in external circuit is from:

B_y considering Arrhenius equation, the graph between ‘1/T’ and ‘log K’, which of the following graph represents the relationship between log K and 1/T?

Which one of the following is a redox reaction?

The chemical substance, when dissolved in water, gives “H⁺” is called:

The 'pH' of human blood is:

In zero order reactions, the rate is independent of:

What is the trend of melting and boiling point of the elements of short periods as we move from left to right in a periodic table?

Alkaline earth metal oxides react with water to give hydroxides. The solubility of alkaline earth metal oxides in water increases as we move from top to bottom in a group. Which of the following alkaline earth metal oxides is least soluble in water?

The electronic structure of carbon monoxide is represented as:

Which one pair has the same oxidation state of ‘Fe’?

Oxidation state of ‘Fe’ in K₃[Fe(CN)₆] is:

The nature of an aqueous solution of ammonia (NH₃) is:

Unpolluted rain water has a pH of:

In comparison with oxygen gas, a strong triple bond is present between two nitrogen atoms in a molecule and therefore nitrogen gas is:

The catalyst used in the Haber’s process is:

The cis-isomerism is shown by:

Select the nucleophile from the following examples:

What is the product formed when propene reacts with HBr?

The order of reactivity of alkyl halides towards nucleophile is:

Consider the reaction given below: Which statement is true?

In the following reaction, what product(s) may be formed?

C₂H₅OH + PCl₅ → ?

The name of the following compound is:

Which group gives a yellow precipitate of triiodomethane when warmed with alkaline aqueous iodine?

Aqueous phenol decolorizes bromine water to form a white precipitate. What is the structure of the white precipitate formed?

The relative strength of carboxylic acid, water, ethanol, and phenol has the following order of increasing acid strength:

What is the structure of alcohol which on oxidation with acidified Na₂Cr₂O₇ gives:

The formation of ester from acetic acid in presence of acid and ethanol is a:

Methyl cyanides, on boiling with mineral acids or alkalis yield:

The amino acids which largely exist in dipolar ionic form are:

Refer to the question below.

The reaction:

gives a product called dipeptide molecule which is represented by:

Two or more amino acids condensed to form protein by a peptide linkage which is present between two atoms:

α-amino acids are compounds having carboxylic acid as well as amino functional groups attached to:

The formula of 'Zwitter ion' is represented by:

What is the name of amino acid where ‘R’ is a CH3 group?

Polyvinyl acetate (PVA) is colourless and non-toxic resin used as an adhesive and as a binder for making:

Both ribose and deoxyribose are monosaccharides containing _ carbon atoms.

Polyvinyl chloride is an example of:

The increased quantities of cholesterol in blood make plaque like deposits in the arteries causing:

Collagen is a fibrous protein present most abundantly in:

Animals store glucose in the form of glycogen in:

Aerobic decomposition of organic matter i.e. glucose by bacteria in water sediments produces?

The yellowish-brown color in photochemical smog is due to the presence of:

What will be the relation for the speed of electron accelerated towards the target in the X-ray tube by applying potential difference ‘V’, taking the mass of electron ‘m’ and charge on electron ‘e’?

The wavelength ' λ' of a wave depends on the speed 'v' of the wave and its frequency 'f'. Decide which of the following is correct?

Name the quantity which can be measured by using the base unit kgm²s^-3 :

The ratio of moment of inertia of two objects 'A' and 'B' is 2:3. Which one of the following is the ratio of torques of 'A' and 'B' respectively if both are being rotated with constant angular acceleration?

Due to some mechanical fault, a lift falls freely from the top of a multistory building. Which of the following is the apparent weight of a man inside the lift, if the mass of the man is 80 kg while the value of 'g' is 10 ms^-2?

Stokes' Law is given as:

The product of cross-sectional area of the pipe and the fluid speed at any point along the pipe:

A small leak is developed in a large water storage tank. If the height of water above the leakage is 10 m, then find the speed of efflux through the leak:

The minimum distance from the eye at which an object can be seen clearly without strain is called:

In the diffraction of light around an obstacle, the angle of diffraction is increased then:

An object 15 cm from a lens produces a real image 30 cm from the lens. What is the focal length of the lens?

What is the formula for critical angle in case of light through two media having refractive indices n1 and n2 such that n1 > n2?

For a vibrating mass-spring system, the expression of kinetic energy if x=0 is given by:

The speed of sound through a gas is measured as 340 m/s at pressure P₁ and temperature T₁. What will be the speed of sound if the pressure of a gas is doubled but the temperature is kept constant?

The stress-strain graph deduced the following limits successively:

Variation of amplitude with respect to time for an oscillation object is shown in the figure. Identify the oscillation:

A 4.0 m long wire is subjected to stretching force and its length increases by 40 cm. The percent elongation which the wire undergoes is:

A gas sample contains three molecules each having speeds 1 ms^-1, 2 ms^-1, and 3 ms^-1. What is the mean square speed?

What will be the mathematical form of the first law of thermodynamics for a system whose variation of volume by pressure is shown?

For a heat engine ‘A’ the ratio of Q₂ to Q₁ is 2/3 while for that of heat engine ‘B’, the ratio of Q₂ to Q₁ is 1/3. What is the value η_A: η_B ?

What is the charge stored on a 5 μF capacitor charged to a potential difference of 12 V?

12-volt battery is applied across 6-ohm resistance to have a steady flow of current. What must be the required potential difference across the same resistance to have a steady current of one ampere?

A solenoid is cut into two halves. Magnetic induction due to the same current in each half will be:

A long straight current-carrying conductor has current directed from bottom to top when held vertically. What will be the direction of magnetic field lines when observed from below the conductor?

What is the output Boolean expression of logic diagram shown in figure below:

Three resistors each having value 'R' are connected as shown in the figure. What is the equivalent resistance between 'X' and 'Y'?

The diagram shows a wire, carrying a current ‘I’, placed between the poles of a magnet. In which direction does the force on the wire act?

X-rays from a given X-ray tube operating under specified conditions have a minimum wavelength. The value of this minimum wavelength could be reduced by:

Helium-neon lasers are used for the:

What is the type of characteristic X-ray photon whose energy is given by relation ‘hf =EM – EK’?

The kinetic energy of electrons by applying potential difference V₁ across the x-ray tube is (KE)1, while the V₂ potential difference produces kinetic energy equal to (KE)². What, will be the value of (KE)1:(KE)² if the ratio of potential difference V₁:V₂ = 2:3?

What does CAT stand for in X-ray technology?

During the production of LASER, when the excited state E₂ contains more atoms than the ground state E₁, the state is known as:

In a cloud chamber, the path of β-particles is:

Among the three types of radioactive radiation, which has the strongest penetration power?

The emission of alpha particles from a radioactive substance causes:

10 Joules of energy is absorbed by a 10-gram mass from a radioactive source. What is the absorbed dose?

Isotopes are those nuclei of an element that have:

Which one of the following emissions takes place in the nuclear reaction? 90Th234 → 91Pa232 + _ + 20n1

The emission of radiation from radioactive substances is:

In a simple harmonic motion with a radius xo, the velocity of the particle at any point is:

What is the value of universal gas constant?

Which of the following is the proper way to study the sinusoidal waveform of voltage?

Indolence gives vent to _ disposition in human life.

The Quaid’s _ enthusiasm led the Muslims of Indo-Pak to independence.

He _ the incident to the back of his mind.

He _ the day they had bought such a large house.

Identify the incorrect segment: Amjad was not conscious to the aberration he had committed in the public meeting. It was disliked by all and sundry.

Identify the incorrect segment: Late Agha Shahi was an outstanding genius in the international affairs. He was gifted of the acumen to judge the future events, judge the future events in advance.

Identify the incorrect segment: The old man was sitting quite bamboozled when the swindler deprived him from his pension money by his evil tricks.

Identify the incorrect segment: The prime minister fired a broadside at the opposition leaders. A few of his remarks were not up at the mark.

Identify the incorrect segment: Lucy is the diva which performance as an opera singer is peerless.

Identify the incorrect segment: The police report excused Anwar of all charges of corruption and job was also restored.

Select the NEAREST CORRECT MEANING of the given word:

HEINOUS

Select the NEAREST CORRECT MEANING of the given word:

ILLICIT

Select the NEAREST CORRECT MEANING of the given word:

MOTIF

Select the NEAREST CORRECT MEANING of the given word:

INCULCATE

Select the NEAREST CORRECT MEANING of the given word:

INIQUITY

Select the NEAREST CORRECT MEANING of the given word:

INTRANSIGENT

Select the NEAREST CORRECT MEANING of the given word:

LAMPOON

Select the NEAREST CORRECT MEANING of the given word:

MESMERIZE

Select the NEAREST CORRECT MEANING of the given word:

OBLITERATE

Select the NEAREST CORRECT MEANING of the given word: MALEVOLENCE

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. Social and economic progress, good governance takes time to establish.

SPOT THE ERROR: In the following sentences, 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.

Find errors in the following sentence:

Identify the errors and choose the correct option:

SPOT THE ERROR: In the following sentences, some segments of each sentence are underlined.We were ten miles up the highway when I happened to saw this classified advertisement in the newspaper.

Choose the correct spelling of the word:

Identify the word or phrase that needs to be changed for the sentence to be correct.When I go into a bank, I get frighten.

Identify the underlined segment in the following sentence, which contains the mistake that needs to be corrected.We wished today was sunny so that we could spend the day in the country communicating with nature.