UHS MDCAT 2017

The low partial pressure of oxygen in tissues favours _ of oxyhaemoglobin.

Respiratory tubules are termed as bronchioles when they attain the diameter _ or lesser:

Elastic fibres are absent in the walls of _.

A type of blood cell that produces heparin is _.

The thoracic lymph duct of the lymphatic system opens into _.

Select the part of nephron which is NOT permeable to water and stops its outflow:

Vessels which carry blood to the glomerulus are called:

In ECG, QRS wave represents:

When water content in body becomes high, what will happen:

The major factor in producing hypertonic urine is:

What is the least selective process during urine formation:

The nerve impulse which jumps from node to node in myelinated neurons is called as:

The CNS is protected by:

White matter of spinal cord is made up of:

There are evidences that high levels of aluminum can lead to the onset of:

_ is the structure in female reproductive system in which fertilization takes place:

Which of the following directly develops into sperms?

FSH stimulates the production of oestrogen hormone which has two targets _; and _:

Select the organelle which is only present in animal cells:

S_yphilis is a sexually transmitted disease and can also damage:

Spongy bone is always surrounded by:

Bone matrix is hardened by the:

The number of bones forming skull in man is:

The spine consists of linear series of:

Which of the following changes occurs when skeletal muscles contract:

The thyroxine hormones of thyroid glands act directly on:

All the hormones released by the anterior pituitary are tropic hormones except:

Which of the following is endocrine as well as exocrine?

Ovulation is suppressed by progesterone via:

The antibody molecule consists of _ polypeptide chains.

_ cells survive for a few days and secrete a huge no. of antibodies in blood, tissue fluids or lymph.

The intermediate protection from infection of snake bite can be obtained by:

Chlorophyll molecule contains:

The tail of chlorophyll molecule is embedded in:

Carotenoids absorb light of:

Chlorophyll 'a' and chlorophyll 'b' differ in one of the functional groups… Chlorophyll 'a' has:

Glycerate-3-phosphate in the presence of ATP and reduced NADP from light dependent stage is reduced to:

Restriction enzyme EcoR1 cuts DNA to produce:

Restriction endonucleases are produced by:

DNA segments of different lengths can be separated by a process of:

The is the 1st heat stable component used in PCR:

Patients of cystic fibrosis (CF) produces thick mucus because of faulty:

Chemicals used for destroying agricultural competitors are known as:

How denitrification does occur in soils?

Process by which unrelated species evolve to functionally resemble each other is called:

Which of the following shows evidence from evolution through molecular biology?

Large population size, random mating, no mutation and no emigration or immigration are the postulates of:

Pure breeding lines of pea were taken regarding seed shape —Round and wrinkled and were crossed with no intermediate between parents. All offspring were found to be round. These results show:

Base substitution, deletion and insertion are examples of:

The condition in which the heterozygote has a phenotype intermediate between contrasting homozygous parents is called as:

The interaction between different genes occupying different loci is:

Locus stands for:

Self fertilization of F-1 dihybrids, following independent assortment of alleles result in:

As a result of cross-fertilization of a pure breeding pea plant having purple coloured flowers; with that of white coloured flowers, the offsprings will have flowers with:

The gene for red-green color blindness is present on:

Which of the following structures is present in both plant and animal cells but is absent in prokaryotic cells?

Cilia and flagella are absent in:

Nucleoid is a structure not found in:

Cell wall structure of a cell of unknown origin was studied and was found to contain a polysaccharide chain linked with short chains of amino acid.What do you think it can be?

Ribosomes present in prokaryotes are:

Functionally mesosomes can be compared with:

Students were asked to give a guess about a unicellular organism with darkly stained nucleus.Which of the following can be straight away excluded from the list:

Binary fission is a characteristic cell division NOT found in:

_ are the specific structures related to monosaccharides:

_ are the major site for storage of glycogen in animal's body.

The number of amino acids that have been found to occur in cells and tissues are:

Most proteins are made up of _ type of amino acids.

If in lipids there is a higher proportion of unsaturated fatty acids then it will be:

When X-rays are passed through crystalline DNA, it shows helix making one twist every:

Following is the structure of:

All enzymes are _:

The reactants on which enzyme works are:

Which of the following comprises inorganic ions?

Which of the following is a non-cellular infectious entity?

The viruses can reproduce:

The life cycle in which the phage kills the bacteria is known as:

In which of the following shapes, gut living symbiont Escherichia coli is found?

Chitin, a chemical found in exoskeleton of arthropods is also found in cell wall of:

Snails are the intermediate hosts in:

_ is an intestinal parasite of man belonging to phylum Nematoda.

Food is diverted in the esophagus by:

Label 'a' in the following diagram:

Enzyme pepsin acts on:

Following is the structure of gastric glands in stomach wall where 'x' is:

Label the part 'Y' in the following diagram:

Which of the following is a respiratory disorder related to malnutrition:

In NO₃^- the oxidation number of N is:

The E₀ value of the standard copper half cell is 0.34, measured when it is connected withthe SHE i.e. Standard H_ydrogen Electrode. In this case the half cell reaction taking place atSHE is:

Consider the following reversible reaction: Initial concentrations:

CH₃-CH₂-OH) = 1 mol.dm^-3(CH₃-COOH)= 1 mol.dm^-3(CH₃-CH₂-O-CO-CH₃)= 0 mol.dm^-3(H₂O)= 0 mol.dm-3

Equilibrium concentrations:(CH₃-CH₂-OH) = 0.33mol.dm^-3(CH₃-COOH)= 0.33 mol.dm^-3(CH₃-CH₂-O-CO-CH₃)= 0.66 mol.dm^-3(H₂O)= 0.66 mol.dm^-3

K_c= 4 at temperature 100

What are the new equilibrium concentrations of all species if 1 mol.dm^-3 of CH₃-CH₂-OH and CH₃-COOH are added to this equilibrium mixture? (Apply Le-Chatelier’s principle)(Temperature and K_c remain constant)

For which of the following equilibrium reaction, Kc has no units:

Choose the type of catalyst in the following reaction:

2SO_3(g) (in the presence of NO_3(g)) 2SO_2(g)

Which of the following graphs is the representation for more rapidly catalysed reaction?

The following graph shows a physical property along the period 3 elements. Which physical property is shown in the graph?

The following sketch shows the melting point of eight elements with consecutive atomic numbers. Which element is Silicon?

6NaOH + 3Cl₂ 5NaCl + NaClO₃+3H₂O

In the above disproportion reaction, the oxidation state of chlorine is changed from zero to _ and _.

Which noble gas is alpha emitter?

Scandium has the atomic number 21, which one will be its electronic configuration?

Violet color of [Ti(H₂O)₄]⁺is due to:

Nitrogen gas reacts under _ conditions.

Liquid Ammonia has become an important fertilizer for direct application to soil. It contains _Nitrogen.

SO₃ formed in the contact process is absorbed in _% H₂SO₄.

The balanced chemical equation to manufacture ammonia by Haber’s Process is:

Which one of the following is used as a typical catalyst for catalytic cracking?

The type of structural isomerism which arises due to the differences in nature of carbon chains or carbon skeletons is:

Which one of the following is the best name according to IUPAC system for the compound with the formula shown below?

Cl

|

H₃C - CH - CH₂ - CH - CH₃

|

CH₂

|

CH₂CH₃

Immediate product formed when propanoyl chloride reacts with benzene is:

Which of the following are 3,5 (meta) directing groups when second group is induced in them:i) -NH₃

ii) -CHO iii) -COOH iv) -CH₃

When benzene reacts with acetyl chloride (CH₃COCl) in the presence of AlCl₃, acetophenone is formed. The electrophile in this reaction will be:

The reaction of bromine with benzene in the presence of FeBr3 follows the mechanism of:

Which of the following is Halothane?

The non-stick lining of pans is:

In the elimination reaction, alcoholic KOH is used. OH^- in this case, will act as:

During the SN₁ reactions, the fast reaction involves:

Alcohol reacts slowly with Na metal compared to water because it has low concentration of H⁺ ion which suggests that it is:

CH₃—CH₂—OH + PCl₅ CH₃—CH₂—Cl + POCl₃ + HClFormation of HCl is the test for the presence of _ in a compound.

What will be the exact product?

C₂H₅OH + CH₃COOH (in presence of sulfuric acid) ?

Choose the correct type for this reaction from the following:

C₂H₅-SO₃H + H₂O C₂H₅-OH + H₂SO₄

Ethanol reacts with HCN to form cyanohydrin. This is an example of:

The reactions of aldehydes and ketones with ammonia derivative G-NH₃ to form compounds containing >C=N-C and water is known as _ reaction.

Which one of the following compounds will give iodoform test on treatment with aqueous iodine?

What will be the product of the reaction given below?

CH₃

\

C = O + HCN (in presence of NaCN /HCl) Y?

/

C₂H₅

In the reaction below “?” represents which one of the following products:

Compounds having the –CN group are called:

Select the correct acidic strength order of chloro substituted acids:

The phenoxide ion is more stable than ethoxide ion as:

Acidic character of amino acid is due to:

The IUPAC name of alanine is:

The amide linkage in Nylon-6,6 has the structure:

The monomers needed to make ‘Terylene’, i.e. a polyester are:

Which one of the following are the main functions of DNA?

_is the major source of acid deposition in the atmosphere.

The energy from ultraviolet light is sufficient to break the _ bonds in CCl₂F₂.

There are almost 200 million people alive in Pakistan. If you were to distribute 100 to each Pakistani in the form of 5 Rupee coins, how many moles of coins are you required to have?

A researcher has prepared a sample of 1-bromopropane from 10g of 1-propanol. After purification he had made 12g of product. Which of the following is percentage yield?

Which of the following has the same number of molecules as there are in 11g of CO₂?

A sample of an organic compound consisting of carbon, hydrogen and oxygen was subjected to combustion analysis. 0.5439g of this compound gave 1.039g of carbon dioxide and 0.63469g of water vapours. The empirical formula of this compound is:

28g of N₂ at STP will occupy a volume of:

Study the following graphs for the boiling points of some substances: Which of the above graph shows that some members of the graph have hydrogen bonding?

What is the number of electrons in the following ion?

Ga³⁺

Isotonic symbol of the ion of Sulphur-33 is shown below. How many protons and neutrons are present if the number of electrons are 18?

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

In the modern periodic table, the elements in Group II-B are:

Chromyl Chloride test is performed to confirm:

The charge on one gram of electrons is:

The quantities which can be measured accurately are:

An observer notes the reading of scale from different angles (parallax) while measuring the length of the wire, what type of error is possible:

The ratio of displacement along the diameter of the circle and the total distance along the circle is:

Arshad is driving down 7th street, he drives 150m in 18s. Assume he does not speed up or slow down, what is his speed?

The distance travelled by a moving car with velocity 15 ms^-1 in 2s, decelerates at 2ms^-2 is equal to:

In the shown figure, calculate the total work done : -

Work done will be zero if angle between force and displacement is:

If mass 'm' is dropped from height 'h' vertically, 'f' is the force of friction during downward motion and 'v' is the velocity at bottom, following will hold:

A body moves in a circle with increasing angular velocity, at time 't'=6s the angular velocity is 27 rad/s… What is the radius of circle where linear velocity is 81cm/s:

A moon rotates about its axis. In the future, scientists may wish to put a satellite into an orbit around the moon such that the satellite remains stationary above one point on moon surface, the period of rotation of moon about its axis is 27.4 days, what is the radius of required orbit? Mass of the moon =7.35x10²²kg

In mass spring system mass 'm' is attached with spring of spring constant 'k' with time period 'T₁'. Then the mass is replaced by '2m' with same spring, what is the time period 'T₂'

A body performing SHM with displacement x=x_osin(wt+Ⲫ), when t=0, x=x_o.Then what is the phase angle of Ⲫ?

Angular displacement of a point moving in a circle of 10 cm when displacement of projection of this point a long vertical diameter of circle is 8.66cm will be:

A wave travelling with speed of 130m/s having a wavelength of 5m. What is its frequency:

A metallic wire of length 2m hooked between two points has tension 10N. If mass per unit length is 0.004kg/m, their fundamental frequency emitted by wire on vibration is:

Coherent lines emerge from two fine parallel slits 'A' and 'B' as shown in figure: If 'P' is the position of nth dark fringe from centre of interference, then phase difference between wave train 'A' and 'B' is:

The wavelength of light which produces second order spectrum on diffraction grating on which 5000 lines/cm are ruled at an angle of 30° will be:

Estimate pressure of air molecules at 273 K, if mean square speed is 500 m²s^-2 and density of air is 6 kgm^-3:

1 mole of a gas occupies volume 1.00 x 10^-2 m³ in a gas cylinder whose pressure is equal to 2.50 x 10⁵ Pa. The temperature of cylinder is:

The value of pressure and volume of fixed mass of gas in thermometer at triple point of water P_f = 1.00 x 10⁵ Pa and V_f = 1 x 10^-3 m³. When P=1.1 x 10⁵ Pa and V=1.2 x 10^-3 m³. Then temperature of gas is:

Isobaric processes occur at:

The Coulomb's force between two point charges q₁ = 1C and q₂ is 2N. Where the distance between them is 3m, the charge q₂ is:

Electric field strength at position vector caused by point charge placed at origin is:

2.00 x 10⁶ e passing through a conductor in 1 millisecond. Electric current through conductor is:

A carbon resistor connected to a battery of 50V and 2A current is passing through it. If voltage is increased to 75V then current will be:

The effective resistance between the points A and B in the figure is

Electric current is flowing through the circuit as shown in the figure. What will be the direction of the magnetic lines of force?

The magnetic flux linked with a solenoid of area 'A', having 'N' turns at right angle to magnetic field is:

A charge projected with velocity of 10 m/s in a magnetic field of 10 T at an angle of 60°, if force exerted on charge is 2.78 x 10^-17 N, then value of charge is:

The value of magnetic flux is 10 Wb, when magnetic lines of force containing magnetic field strength of 1T passing through unit area of 10 m², then angle between magnetic field and unit area is:

A loop of 5 turns of wire is placed in uniform magnetic field of 0.5 T, then area of loop shrinks at a constant rate of 10 m²/s, the emf induced is:

The phase at negative peak of AC voltage is:

A 1.25 cm diameter cylinder is subjected to load of 2500 kg, stress on bar is:

Output voltage of rectifier is not smooth, it can be made smooth by a circuit known as:

A wire of length 2 m is attached with mass of 5 kg vertically, tensile strain of wire is 0.3 x 10^-3, the extension in wire is:

The relation between an alternative current voltage source and time in international system units is: V = 120 sin (100𝜋t) cos (100𝜋t) volt value of peak velocity and frequency will be respectively:-

If signal is applied to input of non-inverting amplifier through resistance of 100 kΩ, and the value of feedback resistance is 10 kΩ, the gain is:

The frequency of photon having momentum 4.42 x 10^-26 Ns is:

1 Gauss is equivalent to:

The momentum of wave where wavelength is 1.32 x 10^-9 m:

Ionization energy of hydrogen atom is:

What will be Z:

The quantity of uranium is 400g, the amount of uranium left after 3 half lives is:

The mass of Radium atom decreases by 8.6 x 10^-3 kg, mass defect equivalent to energy is:

She is intelligent enough to _ things to serve her own purpose.

She _ about the excitement of hearing the news of her sister’s wedding.

Everyone should be _ duties and assignments according to his/her abilities.

We were ten miles up the highway when I happened to saw this classified advertisement in the newspaper.

Identify the incorrect part of the given sentence “All is well what ends well”, said the father when he had finished the story.

Identify the incorrect part of sentenceRubber tubes upon which children had swing in backyards hung suspended like stopped clock pendulums in the blazing air.

Identify the incorrect part of the sentenceThe child was fully dressed and sitting in her father’s lap near the kitchen table.

Identify the incorrect part of the sentenceThe three Abdal Rahman, like his illustrious predecessor, was a young man of twenty-three when he took office.

Identify the incorrect part of the sentenceEnlarged and beautified by later Caliphs, Al-Zahra become the nucleus of a royal suburb whose remains partly evacuated in and after 1910, can still be seen.

Choose the correct sentence from the following options:

Select the NEAREST CORRECT MEANING of the given word:

DISDAIN

Select the NEAREST CORRECT MEANING of the given word:

SAGACITY

Select the NEAREST CORRECT MEANING of the given word:

FLAUNT

Select the NEAREST CORRECT MEANING of the given word:

URBANE

Select the NEAREST CORRECT MEANING of the given word:

DIASPORA

Select the NEAREST CORRECT MEANING of the given word:

IMPETUOUS

Select the NEAREST CORRECT MEANING of the given word:

VOCIFEROUS

Select the NEAREST CORRECT MEANING of the given word:

TRANSIENT

Select the NEAREST CORRECT MEANING of the given word:

PROWESS

Select the NEAREST CORRECT MEANING of the given word:

BEQUEATH

Identify the word or phrase that needs to be changed for the sentence to be correct:We are expecting to go abroad this summer.

M_y brother used to give me an advice but he has stopped doing so.

It is hoped to have everything in order for first performance at the end of November.

The faster you run to reduce your belly-fat, more likely it is to achieve the desired results quickly.

Our university building is now under construction on a hill side in north of Fukuoka.

Choose the correct one.

Choose the segment that contains an error.With the reunification of Germany, the Berlin became once again the capital of the country.

Smoking is a major contributor to many serious diseases, such as heart disease and the lung cancer.