Cytosol is a site of many metabolic processes like:

Secretory vesicles arise from_______ of Golgi apparatus:

Technically, autophagosomes are also known as:

An animal cell can have all organelles except:

In unit membrane model, the region of lipid bilayer attached to globular proteins is:

Which of the following is a feature of cancerous cells?

Immediate precursor of mature RBC that still has a nucleus is:

Water is essential for which of these reactions?

All of the following will produce similar units on breakdown except:

These compounds have lower proportion of oxygen:

Select the one which is found in semen:

Amino acid attaches itself with ____ end of tRNA:

Which of the following is not a nucleotide?

Keratin is a protein abundantly found in:

Which one is a product of conjugation in Golgi complex?

Nucleohistones are important because they:

In Insulin molecule, two chains are held together by:

Virus can recognize its specific host cell by:

An infectious agent which only contain ribonucleic acid:

E.coli is:

All are associated with plants except:

Which protist closely resembles with sponges?

Diploblastic animals have:

Stinging cell is a common name given to:

In molluscs, the respiratory pigment is:

These are on border line between aquatic and true terrestrial animals:

A pinworm is common name of:

All of the following act involuntarily during swallowing except:

Cartilage lid at the top of wind pipe in humans is:

Gastric glands that secrete gastric juice are composed of _______ main types of cells:

Volume of air which we take in and remove during breathing at rest is called:

If inflammation of liver is done it will be referred to as:

______ act as speed breaker of nerve impulse:

Volume of urine is regulated by:

Heart of heart is:

Nerve impulse is initiated by:

Parkinson’s disease is due to deficiency of:

Chondrocytes in cartilage are surrounded by non-living matrix of:

The joints which fix teeth into the jaws are:

The T-tubule and sarcoplasmic reticulum form:

Both urethra and vagina in human female are:

In oestrous cycle, estrogen production:

Deficiency of thyroxin in adult may cause:

In man the parathyroid glands are embedded in the ___________ of thyroid:

All of the following hormones are amino acid derivatives except:

Among plasma proteins, antibodies are manufactured in:

Cells involved in shutting down the immune response are:

Which of the following is a bacterial disease?

Anemia is:

Mycobacterium tuberculosis primarily affects:

The production of ATP in mitochondria is done by the process of:

How many molecules of oxygen are consumed during Krebs cycle?

What is the nature of Ribulose bisphosphate?

The form of anaerobic respiration that occurs in muscle cells is:

Myelin sheath is composed of:

Extra chromosomal DNA molecules having genes for resistance etc, were discovered for the first time in:

Which of the following are known as defense proteins in human body?

Which of the following is positively charged?

Oxidation of ammonia and ammonium ions in soil by bacteria is:

Plants used _____ energy for photosynthesis:

Smallest bone of human body is:

Origin of life is:

Principles of Geology is the work of:

The relation between wings of birds and that of insects is:

A person has blood genotypes L^ML^N, I^AI^B & Dd is married to a woman with genotypes L^ML^M, I^Ai & DD. Which phenotype will not be present at all in their children?

Interaction between two or more gene pairs which work in an additive way is:

Which of the following is associated with Lamarckism?

A real gas, at a very high pressure, occupies:

Greater the strength of intermolecular forces, lesser will be:

For a reversible reaction the value of KC is 10, if the concentration of products is reduced to half, then the value of KC for that reaction at constant temperature will be:

Which one of the following graphs is representation for more rapid catalyzed reaction?

6NaOH_(aq) + 3Cl_2(g) → 5NaCl_(aq) + NaClO_3(aq) + 3H₂O

In above disproportionation reaction the oxidation state of chlorine is converted from zero to _________ and __________:

Which of the following has neutral co-ordination sphere?

Mark the incorrect statement about cis-trans isomers:

The most typical reaction of a simple alkenes is:

The correct IUPAC name for the following compound is:

88g of CO2 reacts with 54g of water to produce carbonic acid as shown in the reaction:

CO₂ + H₂O → H₂CO₃

Which of the given statements is/are correct for above reaction?

Which of the following relations is not correct?

Study the following graphs of boiling points of some substances:

Which of the above graphs show that some members of the graph have hydrogen bonding?

Which of the following when dissolved in water and placed in the conductivity apparatus would cause the light to glow?

Which option shows all the molecules with bond angle 109.5^o:

Melting point of Na and Mg decreases down the group due to :

Which of the following statements applies to most of the non-metals? They have:

Which one of the following statements about class of organic compounds containing functional groups is incorrect?

Which of the following species are 3,5 (meta) directing groups when second group is introduced into the benzene ring: 2017

I = -NH₂ II = -CHO

III = -COOH IV = -CH₃

Select the correct acidic strength order of chlorosubstituted acids:

The rate of reaction for a reaction is 30 mol dm^–3s^–1, if the product of concentration of reactant is unity the specific rate constant is

The cathode in an electrochemical cell is the electrode that is:

Consider the following statements about synthesis of organic compounds?

I This concept was put forward by a German chemist, Friedrick Wohler in 1828.

II According to the modern concept, organic compounds can be obtained not only by living organisms.

III They can also be synthesized in the laboratory.

IV With the help of this experiment he disproved the vital force theory concept.

Which of the above statements is/are correct?

The ester CH₃CH₂CH₂CO₂CH₃ is responsible for the aroma of apples. When this ester is hydrolyzed by acid in the stomach, what is the formula of the organic acid produced

There are almost 200 million people alive in Pakistan. If you were to distribute rupees 1000 to each Pakistani in the form of 5 rupee coin, how many moles of coins you must have?

Which diagram correctly describes the behaviour of a fixed mass of an ideal gas? (T is measured in K.)

Which of the following liquids has greater boiling point?

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

Which is the measure of activation energy in an endothermic reaction?

All of the following enthalpy changes (∆H^o) have only negative value EXCEPT

Which of the following sets constitutes of all the molecules and ions

of non-planar geometry?

The solubility of hydroxides of group IIA increases from Mg(OH)₂ to Ba(OH)₂ due to

Which of the following properties is not shown by transition elements?

Identify the incorrect statement:

An organic compound 'X' on treatment with acidified K₂Cr₂O₇ gives a ketone which reacts with I₂ and sodium hydroxide to form triiodomethane. The compound 'X' is:

Mark the incorrect statement about empirical formula:

In van der Waal’s equation for non-ideal gas, net force of attraction among the molecules is given by:

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

Which enthalpy change is relevant in the following process?

Na_(s)  → Na_(g) $$\Delta$$  H = +

Of the following, the element that does not react with hydrochloric acid to produce hydrogen gas is:

Which one of the following properties does not increase from top to bottom in IA group?

Consider the following statements about electronegativity:

I. It increases with the increase of effective nuclear charge

II. It increases with the decrease of atomic radius

III. It increases along the period

IV. It decreases down the group

Which of the above given statements is/are correct?

Markownikov’s addition of HBr is not applicable to:

Under what reaction conditions does the electrophilic chlorination of aromatic compounds usually occur?

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

Alcohol reacts slowly with Na-metal as compared to water because it has low concentrate of H⁺ ions which suggests it is:

The principal quantum number ‘n’ represents:

Crystalline solids have all of the following properties EXCEPT:

A buffer is prepared by mixing the solutions of equimolar acetic acid and sodium acetate. The pH should be equal to

The rate of a reaction

The standard reduction potentials of Ag, Cu, Co and Zn are 0.799, 0.337,-0.277-0.762V respectively. Which one is the best reducing agent?

Which mechanism of reactions is shown by carbonyl compounds?

Bonds present in CuSO₄.5H₂Ois

Name the compound, which shows geometric isomerism:

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

Which gas is filled in photocell?

If the velocity of electron entering in velocity selector is V < E/B , the electron

Which of the following electromagnetic radiations has photons with the greatest momentum?

The P.E gained by projectile when it reaches at maximum height is expressed by equation

The Laplace correction in the expression for the velocity of sound is needed because sound waves

The magnitude of electric field strength E such that an electron placed in it would experience an electrical force equal to its weight is given by

In a half wave rectifier, the frequency of the input is N, the frequency and form of the output will be

When a photon collides with an electron which of the following of photon increases?

A car of mass 1000 kg moving with 25 ms^–1 collide straight with stationary truck of mass 1500 kg, and start moving together. Find the velocity of truck.

Activity of a sample is initially 320 counts per second. At the end of 90 minutes it gives 40 counts per second. What is the half-life of the element in sample?

Two parallel metal plates are at potentials of +800 V and +1300 V. Which diagram best shows the electric field between the metal plates?

A neutron decays within the nucleus into

According to the equation $$_z^A$$  X → Y +3α particles, what are the atomic and mass numbers of ‘Y’?

A transmitter radiates 30 $$\mu$$  W at 6.63 mm wavelength. The number of photons emitted per second are:

The radial component of acceleration a is

A system exhibiting S.H.M must have

Three infinite straight wires A, B, and C carry currents as shown. The net force on the wire B is directed.

The half-life period of a radioactive sample depends upon

The ratio of fundamental wavelengths of one end close pipe to the both end open pipe having same lengths

Two ions having masses in the ratio 1:1 and charges 1:2 are projected into uniform magnetic field perpendicular to field with speeds in the ratio 2:3 the ratio of the radii of circular parts along which the two particles move is

On moving a charge of 20 C by 2 cm, 2 J of work is done, then the potential difference between the points is

The relationship between force and position is shown in the figure given (in one dimensional case). The work done by the force in displacing a body from x = 1 cm to x = 5 cm is

The angular velocity of a wheel increases from 100 rps to 300 rps in 10s. The number of revolutions made during that time is

Which type of wave is used in submarine navigation system

Two equal and opposite 5C charges are separated by a distance 10 cm. The electric potential at the midway between them is

The equation E = pc is valid

Instantaneous velocity of a body executing S.H.M at it mean position is

The ratio of radius of 3rd to 1st Bohr’s orbit is

The first resonance length in a closed pipe is 20 cm then second resonance occurs at

In a stationary wave, the particle velocity at the nodal points is

When a string of mass ‘m’ per unit length is stretched by a force ‘T’, its frequency is given by

In a stationary wave the distance between consecutive antinodes is 25 cm. If the wave velocity is 300 ms^–1, then the frequency of wave will be

A beam of electron pass between the poles of a magnet as shown, the beam will be deflected

The isothermal elasticity of a medium is E_i and the adiabatic elasticity is E_a. The velocity of the sound in the medium is proportional to

When velocity time graph is a straight line parallel to time axis then

Newtons laws do not hold good for particles

Which one is the correct relation for fundamental frequency of open and closed pipe?

The graph shows how the force acting on a body varies with time. Assuming that the body is moving in a straight line, by how much does its momentum change?

Kinetic energy of a body moving with speed of 10 ms^–1 is 30 J. If its speed becomes 30 ms^–1 then its K.E becomes

Two charges are placed at a certain distance apart in air. When a metallic sheet is placed between them, the electrostatic force between them will.

What is the value of current in a wire of 1cm long at right angle to a uniform magnetic field of 0.5 Wb/m². When the force acting on the wire is 5N.

A body of mass 2 kg is sliding with a constant velocity of 1m/s on a frictionless table. The force required to keep the body moving with same velocity

750 kW engine is generating full power. It is able to provide a 700 kg airplane a speed 2.5 ms^–1. Find the fraction of engine power used.

The angle described in 2sec by an object rotating at a rate of 600 rpm is

A wave transfers

Area under Q –V graph for a capacitor represents

A 100W, 200V bulb is connected to a 160V supply. The actual power consumption would be

$$\gamma$$  - radiations are emitted due to:

The time taken by a particle to travel between a trough and a crest in a transverse wave is

A body moves from point P (3, 4) to Q (5, 7). Its displacement vector would be

Which of the following quantities is non-zero at the mean position for a particle executing SHM?

A battery of emf E and negligible internal resistance is connected to two resistors of resistances R₁ and R₂ as shown in the circuit diagram.

What is the potential difference across the resistor of resistance R₂?

An electric field due to a positive charge is represented by the diagram. Which of the following points has higher potential?

The v₀ and v_t are speeds of sound in a gas at 0°C and t°C then " v_t/v₀" is _______

CHOOSE THE CORRECT SPELLING.

Though Majid prefers watching romantic films, he rented the latest spy thriller, and he enjoyed it very much. The given sentence is a:

CHOOSE THE CORRECT SENTENCE

Ask either of them. The underlined word is a/an:

The older models of car have now been superseded. The underlined word means:

Fill in the blanks.

I ______for the swimming classes tomorrow if I _____ from fever.

SPOT THE ERROR:

Prisoners have been holding hunger strikes in protest on their living conditions

It goes without saying that the interest at a loan company is higher than a bank.

A bouquet of yellow roses lend color and fragrance to the room.

Excitement as well as nervousness are the cause of her shaking.

A MSDS (material safety data sheet) was used to record the data.

The papers were lying neatly on his desk. The underlined verb is a:

Change the correct passive of the given statement.

They say that people live on distant planets.

Change the correct passive of the given statement.

The teacher said to the boys, “Work hard if you want to pass the exam.”

CHOOSE THE CORRECT SENTENCE

CHOOSE THE CORRECT SENTENCE

CHOOSE THE CORRECT SENTENCE

How much does it cost per kilo? The underlined word is a:

$$\frac{1}{3},\frac{3}{7},\frac{6}{13},\frac{10}{21},\frac{15}{31},?$$  

Statements:

All roads are waters. Some waters are boats.

Conclusions:

I. Some boats are roads.

II. All waters are boats.

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?

A tiger, when killing its natural prey, which it does either by stalking or lying-in wait for it, depends for the success of its attack on its speed and, to a lesser extent, on the condition of its teeth and claws. When, therefore, a tiger is suffering from one or more painful wounds or when its teeth are missing or defective and its claws worn down, and it is unable to catch animals it has been accustomed to eating, it is driven by the necessity to killing human beings.

Human beings are the natural prey of tigers.

Statement:

Japan is not likely to grant Pakistan's request for a $500 million fast disbursing loan for the current year.

Courses of action:

I) Pakistan should approach other countries to get a loan.

II) Pakistan should persuade Japan to grant the loan to meet its immediate demand of foreign exchange.

I. It is the aim of the city's civic authority to get the air pollution reduced by 20% in the next two months.

II. The number of asthma cases in the city is constantly increasing.