Movement of water molecules across the cell membrane can be through:

It is primary fuel for respiration:

An enzyme that requires highly basic pH for its proper functioning is:

Bacteria form spores during _________ phase of growth:

Highest degree of regeneration is present in sponges because of

It is a type of photosynthetic pigment present in all photosynthetic eukaryotes:

Which of the following event occurs during life cycle of HIV?

Net production of ATP during Glycolysis is:

Each ________ consists of a light gathering antenna complex and reaction center.

Cyclic flow of photosynthesis produces:

Immediate product formed after CO2 fixation in Calvin cycle is:

The inner membrane of mitochondria forms extensive infoldings called:

Which one of the following is the formula structure of D ( $$\alpha$$  ) glucose?

Secondary structure of proteins is found in:

Phosphodiester bond is:

An enzyme requires Mg++ to catalyze the substrate. The Mg++ is best identified as:

Which one of the following graphs shows how the rate of reaction of pepsin is affected by pH?

All viruses can reproduce within living organisms only, so they are known as:

Taenia is an endoparasite of human, pig and cattle which belongs to phylum:

In radial symmetry all body parts are arranged around the central axis. Radial symmetry represents ___________ mode of life.

Pseudocoelomates have a body cavity but it is not true coelom. Which one of the following is included in the group?

Out of the given option, choose the one which shows the structures found only in plants:

The basic structure of plasma membrane is provide by:

Structures for attachment in Fasciola are:

_________ is a good example of polymorphism:

Which of the following is a blood born disease?

Treatment by using attenuated cultures of bacteria is called:

Which of the following contains peptidoglycan cell wall?

Endoplasmic reticulum contains a system of flattened membrane-bounded sacs which are named as:

____________ is the most abundant carbohydrate in nature:

Keratin protein shows:

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

All coenzymes are derived from:

Which one of the following diseases is caused by enveloped RNA virus and spread in epidemic form?

The structure which contain the gene for drug resistance in bacteria are:

Mesosomes are infoldings of the cell membrane and are involved in:

The nervous system develops from which of the following layer during embryonic development in animals?

Schistosoma is a parasite that lives in the ________of its host:

In human, Escherichia coli is involved in the formation of:

Food is stored in form of glycogen in:

All of the following are true about lipids except

Form of lipids that can be stored in our body as energy reserves are:

All of the following types of nitrogenous bases are found in nucleic acids except:

All of the following are connected through covalent bond except:

____________ C in deoxyribose is devoid of ‘OH’ as compared to ribose sugar.

At unlimited substrate concentration, if concentration of enzyme is increased, rate of reaction:

During formation of phosphodiester linkage, water is released. It takes OH from:

It is the factory for ribosome synthesis:

Occurrence of which process do not need presence of oxygen:

It is a function performed by both RER and SER

‘Cisternae’ are present in:

Organelles mainly responsible for formation and release of glycoproteins are:

Bacterial cell membrane does not contain:

Type of transportation that occurs through carrier proteins is:

During translation, ribosomes are attached to mRNA through:

How many centrosomes are there in typical, non-dividing animal cell?

Capsid of polio virus is:

Vascular lesions in epithelial layer of ectodermal tissue are formed in:

Cocci forming irregular clusters are:

Peptidoglycan is not present in cell wall of:

Chemotaxis and motility is not shown by most of:

All of the following are true about cell wall of Gram positive bacteria except:

These are coelomates:

Secondary host of liver fluke is:

The effect caused by Ancylostoma duodenale is:

Yeasts ferment glucose to:

All of the following insects are useful to humans except:

Correct Boiling point trend of glycol, Ethanol and water is

100 cm³ of water was freezed, the volume of ice will be

The crystals of ________ are not non polar molecular solids

Total number of moles of anions in one formula unit of sodium chloride are

Which organic compound has lowest vapor pressure

In combustion analysis, water absorbed by Mg (ClO ₄)₂ is ________

Volume of one mole of an ideal gas will be 22.414 dm³ at

How many number of moles of electrons are present in 0.01Kg of Ca

Which of the following specie contains same number of all fundamental particles

If temperature of water decreases from 25°C to 0°C then its density will be

The value of quantum number for the valence electron in fluorine atom is

If the rate of reaction is doubled by doubling [A] and rate remain same by doubling [B], then overall order of reaction is A+B →P

Minimum bond angle is associated with

All of the following metals lie below the SHE except

What is oxidation state of chlorine in Mg(ClO₄)₂

Lattice energy of NaCl is -787 kJ/mol and $$\Delta$$  Hf is -411 what is $$\Delta$$  Hx for NaCl

The products of electrolysis of dilute aqueous silver nitrate are

60 kJ mol^-1 is the activation energy for the forward reaction X→ Z ΔH = +20 kJ mol^-1. The activation energy for the reverse reaction will be

In which of the following compounds, oxidation state of Oxygen is +1?

For reaction, rate = k[A]²[B]¹. If rate is 0.04 moldm^–3 s^–1, concentration of A is 0.2 M and concentration of B is 1 M. The value of rate constant ‘k’ would be

Which of the following reaction is the fastest?

The total number of electrons present in the sub-shells having l = 0 in ₂₉Cu

Number of electrons in M-shell and N-shell of ₂₄Cr

The number of total atoms in 4.4g of CO₂ is

In a container pure water is boiled maintaining the external pressure is less than 14.7 Psi. The boiling point will be

Among which of the following factor the rate constant of 1st order reaction depends upon

In air at STP, the average kinetic energy of

In the reaction

3Br₂ + 6CO₃^2- + 3H₂ O → 5Br^- + BrO^-₃ + 6HCO^-₃

The enthalpies of combustion of carbon and carbon monoxide are –393.5 and –283 kJ mol^–1 respectively. The enthalpy of formation of carbon monoxide per mole is

The solubility product of a salt having general formula MX₂ in water is 4×10^–12 the

concentration of M²⁺ ions in the aqueous solution of the salt is

How many number of hydrogen atoms are in 7.5 gram of CH₂O

Which of the following have lowest heat of vaporization

How much O2 is required for the combustion of 5cm³ of C₅H₁₂

What temperature would be required to change 6dm³ of gas at 1 atm pressure and 27°C to 10dm³ at 0.8 atm pressure

After 3 half-lives of a chemical reaction, the percentage fraction of the amount

disintegrated is

The pK_a of a weak acid is 3.8 what should be the ratio of log [salt] / [acid], if a buffer of pH = 5.8 is required?

If pressure and temperature of 1000cm³ of carbon dioxide gas is doubled, then the

volume of carbon dioxide gas would be

The energy of activation (Ea) of an exothermic reaction is 101.210kJ/mol. The activation energy for reverse step may be

Which statement is incorrect regarding 22g of CO₂

Which gas has maximum root mean square velocity at STP

During which process the particles come so close to each other that empty spaces

between them are minimum

The different substances are given below with their boiling points in the following table

Select substance having strongest intermolecular forces

Ionic solids are mostly of high density due to

Vapour pressure of liquids is inversely proportional

How many electrons are present in penultimate shell (second last shell) of O^-2

The correct set of quantum number is

The Cl^– ion present at the corner of the unit cell is NaCl crystal, contributes

Select correct statement

Maximum number of electrons in an orbital of sub-shell having l = 1

The number of hydrogen molecules present in the 0.2g is

Purification of table salt (NaCl) by passing HCl gas through its saturated aqueous

solution is an example of

The lowest value of lattice energy which one of these ionic compound has

________reactions will be favoured in forward direction by increase in pressure at equilibrium

Point out the false statement

In a uniform circular motion:

A bullet penetrates a wooden block and loses its velocity by a half. What is the ratio between the initial kinetic energy of the bullet and kinetic energy when the bullet leaves the block?

A simple pendulum hangs from the roof of a train. The string is inclined towards the

rear of the train. What is the nature of motion of the train?

When an ideal diatomic gas is heated at constant pressure, the fraction of the heat energy supplied which increases the internal energy of the gas is

The equation of state corresponding to 8 g of O₂ is,

An iron sphere of mass 10 kg has the same diameter as an aluminium sphere of mass is 3.5 kg. Both spheres are dropped simultaneously from a tower. When they are 10 m above the ground, they have the same.

If a body starts its S.H.M from its positive extreme position its initial phase is

The displacement of particle executing SHM is given by y = 5 Sin 20πt. Its frequency is

What will be the ratio of KE to that of PE of mass spring vibrating system at the mean position?

Normal Human body Temperature is

Total energy of a mass attached to a spring with amplitude X_⁰ is

A particle of mass 1 kg is moving along a straight line. Its velocity-time graph is as

shown in Fig. Work done by the resultant of all forces acting on the particle from t = 0 to t = 8 s is:

Car A has a mass of 1000 kg and a speed of 60 km/h, and car B has a mass of 2000 kg and a speed of 30 km/h. The kinetic energy of car A is _______.

The specific heat of a gas

A particle of mass m is moving in a horizontal circle of radius R with uniform speed

v. When it moves from one point to a diametrically opposite point its

The velocity of sound in air is 332 ms^–1. The length of a closed pipe whose frequency of second overtone is 332 Hz, will be:

A particle executes SHM with a time period of 2s and amplitude 5 cm. Maximum magnitude of its velocity is

The projection of uniform circular motion along any diameter called as

A 0.5 kg ball moves in a circle of radius 0.4 m with a velocity of 4 ms^-1. The centripetal force on the ball is

What is the average power required to lift a mass of 100kg to a height of 50m in 50 Seconds?

A car has a linear velocity v on a circular track of radius r. If its speed is increasing at a rate of a m/s², then its resultant acceleration will be

Which of the following graphs best represents graphical relation between momentum P and kinetic energy K for a body in motion?

If r = 1m and θ= 1 degree then what is the value of S

A ball of mass 0.25 kg attached to the end of a string of length 1.96 m is moving in

a horizontal circle. The string will break if the tension is more than 25 N. What is

the maximum speed with which the ball can be moved?

A particle is projected at 60° to the horizontal with a kinetic energy K. The kinetic

energy at highest point is ...

An object is projected up wards with velocity of 100 m/sec. it will strike the ground in approximately (g=10 m/sec²)

Velocity–time graph of a particle of mass 2 kg moving in a straight line is as shown in figure. Work done by all the forces on the particle is:

An aeroplane moving horizontally with 50 ms^–1 drops a packet at 490 m height. Its time of flight is

Time taken by an engine of 10 kW to lift a mass of 2 kg to a height of 5m is

Time rate of change of position vector is called

As shown in the figure a particle moves from 0 to A, and then A to B. Find pathlength (distance) and displacement.

At maximum height in projectile motion $$\overrightarrow{v}$$  and $$\overrightarrow{a}$$  are

A small motor requires 50 W of electrical power in order to produce 40 W of mechanical energy output. The efficiency of the motor is:

If θ > 90⁰ work is said to be

Work done by gravity when P.E of body is increased is

Range of projectile is same as that for θ and 2θ. The value of θ is:

If linear momentum of body is increased by 1.5%, its kinetic energy increases by.......%

Two bodies of mass 10 kg and 5 kg moving in concentric orbits of radii R and r

such that their periods are the same. Then the ratio between their centripetal

acceleration is

If s represents distance and $$\overrightarrow{S}$$   represents displacement, then $$\left|\overrightarrow{S}\right|$$ /s is.

A shell initially at rest explodes into two pieces of equal mass, then the two pieces will

A bullet hits and gets embedded in a solid block resting on a horizontal frictionless table. What is conserved?

It is possible to distinguish between transverse and longitudinal waves form the property of

The velocity of sound in air would become double than its velocity at 0°C at temperature

Doppler effect applies to

What kind of wave is formed in organ pipes?

At antinodes produced in sound waves:

The frequency of the first harmonic of a string stretched between two points is 100HZ. The frequency of the third overtone is

Consider the standing wave pattern shown below. A wave generated at the left end of the medium undergoes reflection at the fixed end on the right side of the medium. The number of antinodes in the diagram is

The ratio of phase difference and path difference is:

Two light waves being produced by two sources S₁ and S₂. Both sources have zero phase difference and have wavelength λ. The destructive interference of both the waves will occur of point P if (S₁P – S₂P) has the value

A system is provided with 200 cal of heat and the work done by the system on the

surrounding is 40 J. Then its internal energy

An ideal gas undergoes four different processes from the same initial state. Four

processes are adiabatic, isothermal, isobaric, and isochoric. Out of 1, 2, 3 and 4 which one is adiabatic?

In an isochoric process if T₁=27^oC and T₂=127^oC, then P₁/P₂ will be equal to

When heat is given to a gas in an isothermal change, the result will be

Spot the error:

He is the only one of the persons on the staff who affect me emotionally; however ,everyone else I know is wonderful and easy.

Spot the error:

To cope with all the ships bringing the cargoes and other eatables were not easy.

Spot the error:

About 33% of deaths from major operations was due to bacteria in pre-Listerian days.

Choose the correct sentence.

Spot the error:

I followed him down the little path between the pasture along with the meadow.

Spot the Error:

After five years, she switched to ambulatory dialysis, which she could do at home and tried to live as full a life that possible.

Choose the correct sentence.

Spot the error:

He would ask the new boys that if they had any family connections at Brookfield.

Choose the correct sentence.

Choose the correct sentence.

Spot the error:

Rumours that he had been suspended had swept across the center two weeks ago, but the shopping center’s management company refused to admit or deny the claims

Some people passed, stopped, turned to look, and some stood watched.

Choose the correct sentence.

Simplification of the language was urgent necessary, for Turkish had been a mixture of Turkish, Arabic, and Persian

Choose the correct sentence.

Choose the correct sentence.

Choose the correct sentence.

Spot the error:

 I stopped here twenty-four years ago because I decided I wasn't looking for something anymore.

Find the wrong term

2,5,10,17,26,37,50,64

Statements:

All aeroplanes are trains. Some trains are chairs.

Conclusions:

I. Some aeroplanes are chairs.

II. Some chairs are aeroplanes.

III. Some chairs are trains.

IV. Some trains are aeroplanes

Tanya is older than Eric.

Cliff is older than Tanya.

Eric is older than Cliff.

If the first two statements are true, the third statement is

Anam, Mehwish Raju, Laraib and Dua are five cousins. Anam is twice as old as Mehwish. Raju is half the age Mehwish. Anam is half the age of Dua and Raju is twice the age of Laraib.

Who is the youngest?

Ali starts walking in the North direction and travels 5 km then he turns to his left and walks 10 km and he again he turns to his left and walks for 5 km. How far is he from his starting point?