UHS MDCAT 2012

The part of neuron fibre which conducts nerve impulses away from the cell body is:

The number of cranial nerves in human is:

The part of brain which controls breathing, heart rate and swallowing is:

Syphilis is a sexually transmitted disease which is caused by:

Discharge of ovum or secondary oocyte from ovary or from Graffian follicle is called:

Second meiotic division in the secondary oocyte proceeds as far as :

Which one of the following differentiates directly into mature sperm?

Uterus opens into the vagina through:

Each muscle fibre is surrounded by membrane which is called:

When calcium ions are released from the sarcoplasmic reticulum, they bind with _ during muscle contraction.

Human and mammalian skeleton can be divided into two parts, axial skeleton and :

Last four vertebrae in humans are fused to form a structure called:

How many bones are involved in the formation of each half of pelvic girdle?

Ductless glands are known as:

Gastrin is the hormone which is produced by the:

β-cells of pancreas (changed from liver) secrete a hormone that is called :

Vasopressin (ADH) and oxytocin are released from the:

Antigen is a foreign protein or any other molecule which stimulates the formation of :

Antibodies are produced by which of the following lymphocytes?

T-lymphocytes become mature and competent under the influence of :

Skin and mucous membranes are part of the body defense system and they form the:

Snake bite is treated with which type of immunization?

The product(s) of cyclic photophosphorylation is/are:

Total NADH formed by one glucose molecule during Krebs’s C_ycle are:

The terminal electron acceptor in electron transport chain is:

One molecule of FADH2 is produced in Krebs’s cycle during conversion of:

In recombinant DNA technology _ are tools for manipulating DNA.

In the DNA finger printing process, the use of _ produces a distinctive pattern on autoradiography or X-ray film.

In the recombinant DNA technology plasmids are used as:

In which process, multiple copies of the desired genes are produced?

The enzyme adenosine deaminase is missing in a person suffering from:

What is the niche of an organism in an ecosystem?

The distinct levels or links of food chain are called

A relationship between two or more organisms of different species in which all partners get benefit is called

Bacteria and fungi are examples of

The cause of acid rain is

When the presence of a gene at one locus suppresses the effect of a gene at another locus, the phenomenon is called

The gene for ABO-blood group systems in humans is represented by symbol

When a single gene affects two or more traits, the phenomenon is called

The comparative embryology of all vertebrates shows the development of

In men, sex-determination depends upon the nature of

Population of different species (plants and animals) living in the same habitat form a:

The part of the body which forms a structural and functional unit and is composed of more than one tissue is called

A method in which pests are destroyed by using same living organisms or natural enemies is called

Chemicals produced by microorganisms which are capable of destroying the growth of microbes are called:

Plastids are only found in the:

Plasma membrane is chemically composed of:

The endoplasmic reticulum contains a system of flattened membrane-bounded sacs which are named as

Lipid synthesis/organisation takes place in which of the following organelle?

Ribosomes exist in two forms, either attached with RER or freely dispersed in the:

E_xchange of segments between homologous chromosomes is called:

If a person has 44 autosomes + XXY, he will suffer from:

The ribosomal RNA is synthesized and stored in

In which stage of Interphase, there is an increase in cell size and many biochemical are formed:

In Down’s syndrome, which one of the following pair of chromosome fails to segregate?

Carbohydrates are organic molecules and contain three elements

Which one are intermediates in respiration and photosynthesis both?

Which of the following is a peptide bond?

Which of the following is an unsaturated fatty acid

Which of the following combination of base pair is absent in DNA?

The type of inhibition in which the inhibitor has no structural similarity to substrate and combines with the enzyme at other than the active site is called:

The inhibitors that bind tightly and permanently to enzymes and destroy their globular structure and catalytic activity are:

Enzyme succinate dehydrogenase converts succinate into:

If the detachable co-factor is an inorganic ion then it is designated as

In HIV viruses, reverse transcriptase converts single-stranded RNA into double-stranded viral DNA. This process is called

Mesosomes are infoldings of the cell membrane and are involved in

Most widespread problem of the antibiotics misuse is the

Which of the following components is found in the cell wall of fungi?

The male reproductive parts of the flower are called:

Fasciola is the name given to

Ascaris is

During development, in an animal, mesoderm layer gives rise to

Polymorphism is characteristic feature of

The muscles of the stomach walls thoroughly mix up the food with gastric juices and the resulting semi-solid/semi-liquid material is called:

Trypsinogen is converted into trypsin by the activity of

In large intestine vitamin K is formed by the activity of:

Goblet cells secrete:

Mature mammalian red blood cells do not have

In a normal person plasma constitutes about _ by volume of blood:

Which vein has oxygenated blood?

What is the residual volume of air which always remains inside the lungs of human?

In nephron, most of the reabsorption takes place in the

Detection of change and signaling for effector’s response to the control system is a:

What are the three components of mechanism of homeostatic regulations?

Blood enters the glomerulus through

Which portion of nephron is under the control of ADH?

Cause of Parkinson’s disease is death of brain cells that produce:

In the below reaction the nucleophile which attacks the carbon atom of acid is:

Organic compound containing both amino and carboxyl group is known as:

The skeletal formula of dipeptide formed between aspartic acid and phenylalanine is given below: How many functional groups are present in its formula?

In basic conditions, amino acid exists in which of the following forms?

The following dipeptide is called:

The principal energy storage carbohydrate in animals is:

Starch is a polymer of:

The reaction between fats and caustic soda is called:

Adipic acid and hexamethylene diamine both of which have _ carbon atoms:

Lactose is a sugar present in milk. It is an example of:

Macromolecules are described as large molecules built up from small repeating units called:

The increase in the concentration of oxidizing agents in smog like H₂O₂, HNO₃, PAN, and ozone in the air is called:

Which is the metal, whose elevated concentration is harmful to fish as it clogs the gills thus causing suffocation?

An organic compound has the empirical formula C₃H₃O if the molar mass of the compound is 110.15 gmol^-1. The molecular formula of this organic compound is: (A, of C=12, H=1.008 and O=16)

When 8 grams (4 moles) of H₂ react with 2 moles of O₂ , how many moles of water will be formed?

The number of molecules in 22.4 dm³ of H₂ gas at 0°C and 1 atm are:

Correct order of boiling points of the given liquids is:

The relative energies of 4s, 4p and 3d orbitals are in the order:

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

The angle between unhybridized p-orbital and three sp2 hybrid orbitals of each carbon atom in ethene is:

In ‘H-F’ bond electronegativity difference is ‘1.9’. What is the type of this bond?

The lattice energy of an ionic crystal is the enthalpy of:

As the number of solute particles increases, the freezing point of the solution:

Boiling point constants help us to determine:

In electrolysis of aqueous CuCl₂, the metal deposited at the cathode is:

In MgCl₂, the oxidation state of ‘Cl’ is :

The formation of NH₃ is a reversible and exothermic process, what will happen on cooling?

A buffer solution is that which resists/minimizes the change in:

In some reactions, a product formed acts as a catalyst. The phenomenon is called:

The reaction rate in forwarding direction decreases with the passage of time because:

Which one remains the same throughout a period?

Alkaline earth metal hydroxides decompose on heating. Which of the following reactions is a correct representation of this decomposition?

Carbon has the unique ability to form long chains by bonding with other carbon atoms. This property of self-linking in carbon is known as:

O_xidation state of ‘Mn’ in KMnO₄, K₂MnO_4, MnO₂ and MnSO₄ is in the order:

Which pair of transition elements shows abnormal electronic configuration?

The acid rain water has pH:

In the Contact Process for manufacturing sulphuric acid, Sulphur trioxide (SO₃) is not absorbed in water because:

In modern Haber Process Plants, the temperature maintained during the process is:

In the Haber process for manufacturing of ammonia, Nitrogen is taken from:

Ethene on polymerization gives the product polyethylene. This reaction may be called as:

In the following, which one is a free radical?

The introduction of the following group in benzene is called:

O

||

R - C -

The alkaline hydrolysis of bromoethane shown below gives alcohol as the product H₃C―CH₂―Br → H₃C―CH₂―OH. The reagent and the condition used in this reaction may be:

In substitution reactions, dihaloalkane or secondary halogenoalkane give / show:

The dehydration of ethyl alcohol with concentrated H₂SO₄ at 140°C gives:

Ethanol can be converted in to ethanoic acid by:

The following structure is of a:

H

|

R - C - OH

|

R

When ethanol is warmed with ethanoic acid in the presence of a strong acid catalyst, an ester ethyl ethanoate is formed. CH₃CH₂OH + CH₃CO₂H → CH₃CO₂CH₂CH₃ During this reaction:

Primary alcohols usually give us aldehydes when oxidized in the presence of Na₂Cr₃O₇, what will the product be, when the secondary alcohols are oxidized in the same conditions?

Iodoform test will not be positive with:

When CH₃-CH₂-OH is oxidized in the presence of K₂Cr₂O₇ and H₂SO₄, the product formed is:

The diagram shows a small magnet hanging on a thread near the end of a solenoid carrying a steady current ‘I’. What happens to the magnet as the iron core is inserted into the solenoid?

A 10 cm long solenoid has 100 turns. What will be the magnetic field inside it along its axis if one-microampere current is passed through it?

Two long straight parallel wires held vertically have equal but opposite currents as shown in the figure. Which of the following effects will be observed?

The kinetic energy K.E. with which the electron strikes the target is given by:

LASER is an acronym for:

X-rays can be produced by bombardment of _ on target metal:

Laser light is monochromatic which means:

If an electron in the ‘K’ shell is removed and an electron from the ‘L’ shell jumps to occupy the hole in the ‘K’ shell, it emits a photon of energy:

Which of the following properties must be there in a substance so that it can be used as a target in an X-ray tube?

Which of the following can be used to produce population inversion for the emission of a Laser?

What is the charge on alpha particles emitted during the phenomenon of radioactivity?

A radioactive nuclide decays by emitting an alpha particle, a beta particle, and a gamma ray photon, the change in the nucleon number will be:

The half-life of sodium-24 is _ which is used to estimate the volume of blood in a patient.

Which of the following is the unit of absorbed dose?

In a radioactive phenomenon observation is shown in the figure where α deviates less than β in some electric or magnetic field (not shown in the figure). What is the reason for less deviation?

The isotope of Iodine-131 is used in the treatment of:

Which of the following effects is observed due to the emission of β- during the phenomenon of radioactivity?

Electric charge on an object is measured as 5 micro-coulombs. The value of this charge can be expressed in terms of base units as:

If ‘m’ is the mass, ‘c’ is the velocity of light and x = mc2, then dimensions of ‘x’ will be:

A force ‘F’ is acting at point ‘P’ of a uniform rod capable of rotating about ‘O’. What is the torque about ‘O’?

An object of mass ‘m’ is suspended in an elevator moving downward with acceleration equal to acceleration due to gravity. What is the apparent weight of object?

Stokes’ Law for steady motion in a fluid of infinite extent is given by:

If the speed of efflux through a small hole in a large tank is 9.8 m/s. Find the height at the fluid above the hole:

Flow speed of the fluid through a non-uniform pipe increases from 1 m/sec to 3 m/sec. If change in P.E. is zero, then pressure difference between two points will be: (density of the fluid = 1000 kg/m3).

Polarization of light exhibited the nature of light as:

The concentration of a sugar solution can be determined by:

The information from one place to another can be transmitted very safely and easily by:

The image of an object placed inside the focal length of a convex lens will be largest and clearest when it is at the:

A simple harmonic oscillator has a time period of 10 seconds. Which equation rotates its acceleration ‘a’ and displacement ‘x’?

When the length of a simple pendulum is doubled, the ratio of the new frequency to the old frequency is:

In the diagram below, the displacement of an oscillating particle is plotted against time. What does the length ‘PR’ on the time axis represent?

When the source of sound moves towards the stationary observer, the value of apparent frequency is:

The ratio of tensile stress to tensile strain is called:

A wire is stretched by a force ‘F’ which causes an extension ∆l, the energy stored in the wire is:

H₂ and O₂ both are at thermal equilibrium at temperature 300 K. Oxygen molecule is 16 times massive than hydrogen. Root mean square speed of hydrogen is:

Which of the following is the expression of mean square speed of ‘N’ gas molecules contained in a cylinder?

If ‘Q’ is the amount of heat supplied to a system and ‘W’ is the work done, then change in internal energy can be defined as:

A heat engine operating according to the second law of thermodynamics rejects one fourth of the heat taken from a high temperature reservoir. What is the percentage efficiency of a heat engine?

First law of thermodynamics under adiabatic conditions can be mathematically written as:

What is the logic symbol for a NOT Gate?

The voltage that is applied across X-plates is provided by a circuit called:

What will be the effect on the capacitance of a capacitor if the area of each plate is doubled while the separation between the plates is halved?

10 V potential difference is applied across the plate of the 1 µF capacitor. What is the energy stored in the capacitor?

Which one of the following is I-V curve of a junction diode?

He had a heart attack and all attempts to _ him failed.

The _ stench of dead animals and plants made Mumtaz ill.

While going up the hills by bus, she felt _ inside.

The craft statesman manipulated the situation by making false promises and declaring sport festivities a _ to fool the public.

Select the incorrect segment:

Select the nearest correct meaning of the given word:

Dissonance

Select the nearest correct meaning of the given word:

Trifle

Select the nearest correct meaning of the given word:

Murky

Select the nearest correct meaning of the given word: Faux

Select the nearest correct meaning of the given word:

Myriad

Select the nearest correct meaning of the given word:

Facile

Select the nearest correct meaning of the given word:

Magnum

Select the NEAREST CORRECT MEANING of the given word: SIDLE

Select the nearest correct meaning of the given word: Plethora

Select the nearest correct meaning of the given word: Vertex

Choose the word that best fits in with the meaning of the sentence as a whole. Indolence gives vent to _ disposition in human life.

Choose the word that best fits in with the meaning of the sentence as a whole. The Quaid’s _ enthusiasm led the Muslims Indo-Pak to independence.

Choose the word that best fits in with the meaning of the sentence as a whole. He _ the incident to the back of his mind.

Choose the word that best fits in with the meaning of the sentence as a whole. She managed to _ a ticket for the cricket match.

Only twice my father stopped to wipe the sweat from his eyes.

A tree slid down the slope, leaned against and settled heavily to the ground.

The latter continued: “You see how is it- Ralston filled the place up with young men.”

The delegates in Anatolia could transfer their activities to Istanbul, put Mustafa Kamal’s ideas into practice and yet not longer stand in opposition to the Padishah.

Female workers are entitled 56 days rest on full salary before giving birth to children.

There is nothing interesting in mathematics. I — read grammar.