FMDC MDCAT 2016

Match the hormones listed under column I with their functions listed under the column. Choose the answer which gives the correct combination of the alphabets of the II columns.

When 1 gram of atmospheric water vapor condenses in the air, it results in:

The epiglottis is to trachea as the lower esophageal (cardiac) sphincter is to the:

The rate of breathing is controlled by involuntary centers in the:

Organisms that live in the intertidal zone might have which of the following characteristics?i.Ability to conduct photosynthesisii.Tolerance of periodic droughtiii. Tolerance of wide range of temperatures

Which of the following are found in the nose to detect smell?

Epiblast later on develops into:

Arthropods can be characterized by all of the following EXCEPT:

The usual duration of luteal phase in the menstrual cycle of human female is:

Duckbill platypus and spiny anteater have internal fertilization and are:

The correct order of the structures through which air passes isI. Nasal cavityII. BronchiIII. LarynxIV. Air sacsV. Trachea

The diameter of a tree is reduced slightly during the day and increased at night. Which of the following changes in environmental conditions cause the greatest reduction in diameter?

Which of the following is an example of feedback inhibition in a metabolic pathway?

Response to plants to touch is called:

The liver:

A secretion that digests both carbohydrates and proteins is:

Which of the following is NOT an echinoderm?

Earthworm belongs to which of the following phylum?

The stage of meiosis at which sperm cell precursors contain two sister chromatids.

The joints that allow movement in two directions are called:

In floral formula “K” stands for:

Which of the following is an acceptable nitrogen base composition for double stranded DNA?

Which of the following substances is non-digestible by man?

Which change contributes to the lowering of the blood sugar level, if a person is injected with insulin?

In the 𝐹 generation of a dihybrid cross between yellow, round seeded and green, wrinkled seeded pea plants, 17 out of 254 seeds were green and wrinkled other seeds were:Yellow and roundGreen and roundYellow and wrinkledWhat do these results indicate?

The characteristic feature of sponges is:

In the course of glycolysis:

The family tree shows the inheritance of a skin condition. What is the genetic basis of the skin condition?

A nerve cell that transmits impulses from a sense organ to the nervous system is known as a(n):

“Hordeum vulgare” is the botanical name of:

Which of the following is not a carbohydrate?

An amino acid molecule has the following structure (shown in picture) Which two of the groups combine to form a peptide link?

Premature birth or miscarriage is usually caused by the disturbance in secretion of which of the following hormone?

Which of the following is mismatched?

Why is there no glucose present in the distal of a nephron?

What prevents molecules with a molecular mass greater than 68000 passing from the glomerular capillaries into Bowman’s capsule?

Which of the following does the autonomic nervous system control?

All of the following statements about arteries are true except:

Butterfly belongs to which of the following class of Phylum Arthropoda?

A mammalian cell is undergoing mitosis; the amount of DNA in its early prophase is X. After completion of mitosis, what should be the amount of DNA in the daughter cell?

___________ accepts hydrogen from malate

If 2 kilojoules of heat are added to 500 grams of water at 100 C and standard pressure, after 2 minutes, the temperature of the water will be:

At which two points of the menstrual cycle are the levels of oestrogen heights?

Venous blood enter route from the kidneys to the heart must pass through the:

Special structures for the absorption of digested food in the small intestine are called:

The role of decomposers in the nitrogen cycle is to:

The rate of breathing is controlled by the:

An organelle that is visible only with the aid of an electron microscope is the:

When the muscle is required to contract, then calcium ions bind with which molecule and cause them to move slightly?

Which of the following best describes the residual volume of the lungs?

Select the false statement:

In mitosis, _____ begins when sister chromatids are suddenly separated and pulled towards opposite poles as kinetochore, microtubule shortens, and at the same time polar microtubules elongate.

Photosynthetic product from leaves to all parts of plant are disturbed through:

Which of the following is the stage of meiosis during which pairs of homologous chromosomes align at the center of the cell?

If gastric juice is tested with a pH meter, the pH is most likely to be about:

The elasticity of the plasma membrane demonstrates that it is made up of:

Which of the following occurs in the cell nucleus?I. RNA synthesisII. Protein synthesisIII. DNA synthesis

Starch is hydrolyzed into maltose by:

Black coat color in horses is caused by a dominant allele, while white coat color is due to the recessive allele. Two black horses produce a foal with a coat, if they were to produce a second foal, what would be the probability of the second foal having a black coat?

Molds and yeast are classified as:

A student is trying to determine the type of membrane transport occurring in a cell. She finds that the molecules to be transported are very large and when transported across the membrane, no ATP is used. Which of the following is the most likely mechanism of transport?

Nematocysts are characteristics of:

The tricuspid valve prevents backflow of blood from the

Under appropriate conditions, NH4Br and KNH2 react as follows:NH4Br + KNH2 -> KBr + 2NH3 How is the reaction best classified?

Which of the following combinations of liquids would be expected to have a vapor pressure higher than the vapor pressure that would be predicted by Raoult’s law?

Which of the following is most acidic?

The following system obeys second-order kinetics.2NO2 -> NO3 -> +NO (slow)NO3 + CO -> NO2 + CO2 (fast)What is the rate law for this reaction?

Which of the following electronic transitions would result in the greatest loss in energy for a single hydrogen electron, assuming that its ground state is n = 1?

The value of the enthalpy change for the process represented by the equation Na--->Na+1 + e is equal to :

Which statement about one mole of metal is always correct?

As the atomic number increases in a group, the chemical properties:

Which reagent gives a colorless homogeneous solution when added tp phenol?

Which property of a gas affects the rate at which it spreads throughout a laboratory?

At 100 C, 0.1 mole of N2O4 is heated in a one dm3 flask. At equilibrium concentration of NO2 was found to be 0.12 moles. Calculate Kc for the reaction.

In which of the following situations is it impossible to predict how the pressure will change for a gas sample?

Bleaching powder is a good:

How many atoms of carbon are present in 18 g of glucose, 𝐶6 𝐻12 𝑂6?

When dilute hydrochloric acid is added to aqueous solution of a compound X, a colourless gas is evovled which rapidly decolourises acidified, aqueous potassium manganate (VII). Which of the following compounds could be X?

One mole of an organic compound is completely burnt in oxygen. Which compound produces exactly three moles of water?

What is the product of the reaction between benzaldehyde and an excess of ethanol (C2H5OH) in the presence of anhydrous HCl? Choose correct option.

The crystals formed as a result of vander der Waals interactions are:

Which gaseous hydride most readily decomposes into its elements on contact with a hot glass rod?

Which substances has tetrahedral geometry?

The following reaction is first order with respect [P] and zero order with respect to [Q].P + Q -> productsIf the rate constant doubles for each 10 C rise in temperature, which of the following sets of conditions will give the greatest rate of reaction?Choose correct option.

Aldehydes and ketone react with primary amines to form:

How many isomers are possible for the compound having molecular having molecular formula C3H5Br.

The haloform test is not given by:

An alcohol on oxidation is found to give CH3COOH and CH3CH2COOH. The alcohol is:

The reaction between fat and NaOH is known as:

Which statement shows that diamond and graphite are allotropes of carbon?

One mole of an organic compound X is reacted with an excess of PCl and two moles of hydrogen chloride are formed. Which of the following compounds could be X?

Select one which is alcohol.

Which of the following has two significant figures?I.0.034II.0.0034III.0.00034

When formaldehyde is heated with concentrated ammonia a solid substance is formed. What is it?

Common name of the following compound is:

Which of the following processes is endothermic?

Which statement describes the electrical potential difference between two points in a wire carrying a current?

A convex lens of focal length 40 cm is in contact with a concave lens of focal length 25 cm. the power of the combination in dioptres is:

A rock is dropped from a high bridge at the end of 3 seconds of free fall the speed of the rock in cm/s:

If an object is released 19.6 metres above the ground, how long does it take the object to reach the ground? (g=9.8 𝑚/𝑠^2)

The vector which only specifies the direction of a given vector is called:

A car travelling at a constant speed of 90 km/h rounds a curve of a radius 100m. What is its acceleration?

Find the time period of a simple pendulum whose length is 88.2 cm. The value acceleration due to gravity is 9.8 m/𝑠 2 at the place where experiments is performed?

The kinetic energy of a projectile at the highest point is half of its kinetic energy. The angle of projection is

Consider two equal resistors wired in parallel. What is the equivalent resistance of the two?

A frictionless heat engine can be 100% efficient only its exhaust temperatures is:

An object that’s moving with constant speed travels around a circular path. Which of the following is/are true concerning this motion?I The displacement is zeroII. The average speed is zeroIII. The circulation is zero

A 1000 kg car can accelerate from rest to a speed of 25 m/s in 10s. what average power (in kilowatts) must the engine of the car produce in order to cause this acceleration? Neglect the friction loss.

A small and a large raindrops are falling through air

A candle 2 cm long is placed upright in front of a concave spherical mirror whose focal length is 10 cm. The distance of the candle from the mirror is 30 cm.The radius of curvature of the mirror is:

‘’If there is no external force applied to a system, then the total momentum of that system remains constant”. This known as:

A simple pendulum suspended from the ceiling of a train has a period ‘T’ when the train is at rest. When the train is accelerating with a uniform acceleration, the time period of simple pendulum will:

A container is divided into two equal portions. One portion contains an ideal gas at pressure P and temperature T while the other portion is a perfect vacuum. If a hole is opened between two portions:

Two cars are travelling towards each other on a straight road at velocities 15 m/s and 16 m/s respectively. When they are 150 m apart, both the drivers apply the brakes and the cars decelerate at 3 m/s 2 and 4 m/s2 until they stop. Separation between the cars when they come to rest is:

A region around a charge body in which another charge experiences an electric force is called:

A 100 kg man runs up a hill through a height of 4m in seconds. How much work does he do against gravitational force?

A boy on a 20 m high cliff drops a stone. One second later, he throws down another stone. Both the stones hit the ground simultaneously. Find the initial velocity of the second stone. (g=10/𝑠 2)

A detector with a surface area of 1 square meter is placed 1 meter from an operating jackhammer. It measures the power of the jackhammer’s sounds as being 10−3 W and finds the intensity of the jackhammer.

A system absorbs 80 J through heating while doing 100 J of external work, what is the change in the internal energy of the system?

A body rolling freely on the surface of the earth eventually comes to rest because:

An elevator, in which a man is standing is moving upward with a constant speed of 10 m/𝑠 2. If the an of the drops a coin from a height of 2.5 m, find the time taken by it to reach the floor of the elevation (g=9.8 m/𝑠 2)

Lenz’s law states that:

Two capacitors 𝐶1 = 2𝑢 F and 𝐶1 = 4𝑢 F are connected series across a 100 V supply. Find the effective capacitance.

Ultraviolet light is more likely to cause a photoelectric effect than visible light. This is because photons of ultraviolet light:

Two tuning forks are sounded, one has a frequency of 250 Hz while the other has a frequency of 245 Hz. What is the frequency of the beats?

A vibrating diaphragm sets up strong vibrations at the mouth of a horizontal tube containing air and a small amount of fine powder. The powder becomes arranged in piles 1 cm apart, and the speed of sound in air is 330 meters.The wavelength of this sound in air is:

A ball is thrown vertically upward with velocity of 196 m/s. How high does the ball rise?

A light bulb has resistance of 150 ohm, find the voltage while the current is 1.5A?

Our flight was _______ from Lahore to Islamabad airport.

I am ______ forward to our picnic scheduled in next month.

Pakistan________from voting against Iran in the United Nations.

Which is not a past from of a verb.

Choose the incorrect word:I use a bike both to ride to school and going to market.

Which one of the following four options is nearest in meaning to the word in capitals? ASTOUND

Which one of the following four options is nearest in meaning to the word in capitals?ECCENTRIC

Which contains an adjective?

Which one of the following four options is nearest in meaning to the word in capitals?WALLOW

He was ____:

The presence of armed guards ____________ us from doing anything disruptive.

Which is not correct?

Choose the incorrect word:The hormone insulin controls over the amount of sugar in the blood which provides energy for the body.

Which one of the following four options is nearest in meaning to the word in capitals?WISP?

Do not lose heart, it is just a ______ in the tea cup.

Which one of the following four options is nearest in meaning to the word in capitals?BOULDER

My advice had no ______________ on him.

Choose the incorrect wordShark differ from other fish in that Their skeleton are made of cartilage instead bone

Which contains an adverb?

Which one of the following four options is nearest in meaning to the word in capitals?CONNOISSEUR