MCAT 2021

Q1) Which of the following has the main role in homeostasis of body temprature?

Q2) It is completely reabsorbed at the level of PCT:

Q3) Four metabolic processes are listed below:

1- synthesis of plasma proteins

2- regulation of fat metabolism

3- storage of vitamin A

4- manufacturing of digestive enzymes

Q4) podocytes are cell found in

Q5) Which cannot be the cause of kidney stone formation?

Q6) Amount of blood pumped by the heart into the body per minute is called:

Q7) At the time of diastole, heart is filled with?

Q8) --------- inactivate inflammation producing substances and attack parasites:

Q9) If an artery supplying blood to the brain bursts as a result of high blood pressure, i will lead to:

Q10) In a menstrual cycle of 24 days, which of the following will be day of ovulation?

Q11) Sperm production in humans is :

Q12 ) Epididymis is

Q13) Oviduct in females opens into:

Q14) Peak level of LH(Luteinizing hormone) corresponds with:

Q15) The end or complete stop of the menstrual cycle is called:

Q16) Release of FSH and development of primary follicles starts:

Q17) Follicular atresia is the degeneration of:

Q18) Bones protect critical internal organs like:

Q19) Knee joint and elbow joint are examples of:

Q20) Which of the following is not a function of bones

Q21) During Diabetes insipidus, body fluids become:

Q22) Iodine is required for synthesis of:

Q23) Glucagon increases blood glucose level by all means except:

Q24) Scientist who first time presented concept of evolution with evidences:

Q25) Which of the following is not a vestigial organ in human body?

Q26) Many identical copies of genes can be produce by

Q27) Recombinant DNA technology is popularly known as

Q28) Naturally restriction endonucleases cut:

Q29) central cutting of gene of interest is a accomplished by:

Q30) All are biotechnological products produced by transgenic bacteria except

Q31) All the alleles present in the gametes of a sexually producing population are known as the population’s :

Q32) An interaction between two alleles having single locus for a single trait can be labeled as :

Q33) X linked gene in the male is expressed by

Q34 Chances for a man to be affected by hemophilia C is

Q35) Which of the following cannot be source of mutation?

Q36) It is an example of chromosomal aberration:

Q37) A woman can suffer from hemophilia A. If she is :

Q38) Edwards syndrome is

Q 39. Which of the following statement is false?

Q 40. Flagella and pilli are made of  

Q 41. Extension of the plasma membrane in prokaryotes is a/an

Q 42. In prokaryotes mitochondria are absent, Krebs cycle occurs in 

Q 43. A prokaryotic bacterial cell does not posses a  

Q 44. The rRNA is synthesized by 

Q 45. Sodium and potassium pumps are examples of

Q 46. Centrioles take part in the formation of  

Q 47. An organelle that mainly serves as a packaging area for molecules that are distributed across the cell and are called 

Q 48. The cell theory is not applicable to

Q 49. Identify the structure of plant cell which is non living from the given list 

Q 50.Which cell organelle doesnot contain DNA 

Q 51. Which of the following phylum of the animal is characterized by jointed legs 

Q52. The animals having soft bodies with she’ll as a cover belongs to

Q 53. The active site of an enzyme is situated in its amino acids 

Q54. Which of the following statement about enzyme are true 

Q 55 Enzymes are mainly composed of  

Q 56  Which enzyme hydrolyse triglyceride to faty acid and glycerol 

Q57. A coenzyme is

Q 58.Which of the following is produced with the combination of apoenzyme and co enzyme 

Q59. Which one among them is example of competitive inhibition of an enzyme 

Q60. Hydrophobic interaction play key role in 

Q 61. C₂H₅NO₂ represents

Q62. Ionic bonding would be present in

Q63. Smallest type of RNA

Q 64. Protein coat of a virus that encloses nucleic acid is called 

Q 65. The tobbaco mosaic virus is approximately -------- in size 

Q66. In AIDS , HIV kills 

Q67. Net yield of water in photosynthesis

Q68. Cellular respiration is essentially a/an process 

The SI unit for angular displacement is: 

The angle subtended by a semi circle at the center is:

The direction of centripetal acceleration is

Angular speed for daily rotation of earth in radian/hour is:

The dimensions of angular acceleration are:

Centripetal force performs:

How many electrons per second constitute a current of one micro ampere?

A steady current is flowing in a conductor of non-uniform cross-section. The charge passing through any cross-section per unit time is:

In the case of gases, the charge carriers are:

What is meant by 5 A?

Slope of graph between “V” on axis and “I” on the Y-axis is: 

In the circuit shown, there is a current of 3 A in the 2 Ω resistor:

What are the values of current I delivered by and voltage V across the power supply?

Two cars are moving in opposite directions with speed v. What is the magnitude of their relative velocity?

A man in a car moving with a velocity of 36km/h . His speed with respect to the car is?

A body can have a constant velocity when it follows a:

A ball is thrown with 30 m/s in a direction 30° above the horizon. Determine the height to which it rises.

Emf induced in a circuit according to Faraday's Law depend on:

Which of the following quantity remains same in transformer:

Transformer works on principle of:

Eddy Current is produced in a materials when it is

Weber is a unit of

A step up transformer has transformation ratio of 3:2 what is the voltage in the secondary if the primary voltage is 30V:

Waves transfer____ from one place to another?

Two sources of waves are coherent if:

Single wave is called

According to the Doppler effect, which of the following changes apparently ? 

In a stationary wave,

The interference phenomenon can take place

The phase difference between the displacement and acceleration of particle executing S.H.M. in radian

The P - V diagram of a system undergoing a thermodynamic process is shown in figure. Work done by the system during going from A→B→C is 30 J and 40 J heat is given to the system. The change in internal energy of the gas if the gas is directly taken from A to C  is:

Thermodynamics is the branch of science concerned with __ and ____ and their relation to energy and work. 

 C_p – C_v = R is valid for ______ gases?

33. Sound waves propagation in air exemplifies an ______ process?

When the heat transfer into a system is more than the work transfer out of the system, then

Tesla can also be written as

1.6eV means

Tick the correct relation:

For which of the following position of Simple harmonic oscillator its velocity will be maximum

Relative permittivity of air is

A thermistor is a resistor which is

μ₀ is called

In case of a motor, if V is the applied emf and ∈ is back emf, then net emf in the circuit is

Which one is a crystalline solid?

Elastic deformation is

Fission reaction is possible with

The work function of certain metal is 2.46Ev . If a photon 4.14eV strikes this metal, it will emit a photo electron of energy equal to:

Photo electrons are actually

One micro-coulomb per mega volt is called

The most commonly used diode for special purpose is

A metal rod of length 1m is moving at a speed of 1m/s in a direction making an angle of 30˚ with 0.57 magnetic field. The emf produced in the rod is

Magnetic induction is also called

Work done is moving a charge ΔQ up through the potential difference V is given by

Resistance of a wire is

Resistance of a wire is

Energy stored in the capacitor is in the form of

If maximum range of a projectile is 2000m then height attained will be

Size of the molecule depends upon

CuSO₄  is:

37 gram of aqueous solution of Ca(OH)₂ contains ___ moles of OH- ions.

The mathematical expression for charge to mass ratio of electron is:

Charge to mass ratio of cathod rays does not depend on:

Which of the following has the highest ionizing power?

Velocity of photon depends upon: 

Which of the following is not a possible energy state of hydrogen atom?

Which of the following is the correct order of colors on the basis of increasing wave number?

What are the possible sub-orbitals for an atom having n+1=4

The element which can extend octet rule is

Which of the following molecule has angular shape?

The hybridization of oxygen in ethe molecule is:

The number of alpha and pie bonds in Pent-1-ene-4-yne respectively are:

Which of the following species have the same bond order as that of N2-?

Which of the following gas has the lowest density at same temperature and pressure?

Which of the following is a polar molecule?

Which of the following have no cleavage plane?

Chemical equilibrium state is:

Which is the following is correct about the initial state f reversible reactions?

Which of the following is a strong Lewis base?

Which of the following is Henderson–Hasselbalch equation?

Which of the following is the unit of rate of reaction?

The solubility of HgCl₂ is highest in:

Which of the following cause highest colligative property?

Which if the following is a Colloid?

Which of the following enthalpy is always negative?

Which of the following have highest heat of hydration?

The oxides of beryllium (BeO) are

Li is different from its family members due to

 Sodium is not observed in +2 oxidation state because of its

The elements in which d or f orbitals are in the process of completion are

 The location of transition elements is in between

Hydrocarbons which burn with smoky flame are called

 Propene can exhibit

Only sigma bonds are present in

 In cyano group the carbon atom shows which kind of hybridization

What will be the products when reactants are alcohol & thionyl chloride in the presence of pyridine?

Which one is not a nucleophile?

During SN2 mechanism carbon atom changes its state of hybridization as

What is the order of kinetics in the SN1 mechanism?

Which one of the following is termed benzyl alcohol?

Which one of the following is also known as the lactic acid?

What is the percentage of lactose in human milk?

The dry mass of plant is composed of carbohydrates up to

When aldehyde reacts with tolen reagent

Alcohol contain 10% methyl alcohol in it is called

Which of the following will react faster with Lucas Reagent?

Which of the following reactant will give us SN2 reaction with highest rate?

The preparation of alkyl halide from alcohol and HCl needs catalyst

Alkane undergo nitration in the

The sigma bond to pie bond ratio in toluene is

Which of the following is more stable?

Which of the following general formula shows hydrocarbon that gives substitution reaction?

The rate of reaction is slowest when 2 butene react with

Which of the following is wrong about cycloalkane?

  I ______ all my childhood in gilgit.

I haven’t had breakfast yet

Pick the correct option

The word ‘LABYRINTH’ means

Choose the correct option

Choose the correct option

________ Oranges are grown in Hunza.

Anusha looks upset, I think she took the criticism _______ heart

Read the passage and answer the following questions:

1 The most beautiful humming birds are found in the West Indies and South America. The crest of the tiny head of one of these shines like a sparkling crown of coloured light. The shades of colour that adorn its breast are equally brilliant. As the bird flits from one object to another, it looks more like a bright flash of sunlight than it does like a living being.  2 But, you ask, why are they called humming birds? It is because they make a soft, humming noise by the rapid motion of their wings—a motion so rapid, that as they fly, you can hardly see that they have wings. One day when walking in the woods, I found the nest of one of the smallest humming birds. It was about half the size of a very small hen and lays egg, and it was attached to a twig no thicker than a steel knitting needle. It seemed to have been made of cotton fibres and was covered with the softest bits of leaf and bark. It had two eggs in it, and each was about as large as a small sugarplum.  3 When you approach the spot where one of these birds has built its nest, it is necessary to be careful. The mother bird will dart at you and try to peck your eyes. Its sharp beak may hurt your eyes most severely and even destroy your sight.

• You can hardly see the hummingbirds have wings because of the:

The most beautiful humming birds are found in the West Indies and South America. The crest of the tiny head of one of these shines like a sparkling crown of coloured light. The shades of colour that adorn its breast are equally brilliant. As the bird flits from one object to another, it looks more like a bright flash of sunlight than it does like a living being.  2 But, you ask, why are they called humming birds? It is because they make a soft, humming noise by the rapid motion of their wings—a motion so rapid, that as they fly, you can hardly see that they have wings. One day when walking in the woods, I found the nest of one of the smallest humming birds. It was about half the size of a very small hen and lays egg, and it was attached to a twig no thicker than a steel knitting needle. It seemed to have been made of cotton fibres and was covered with the softest bits of leaf and bark. It had two eggs in it, and each was about as large as a small sugarplum.  3 When you approach the spot where one of these birds has built its nest, it is necessary to be careful. The mother bird will dart at you and try to peck your eyes. Its sharp beak may hurt your eyes most severely and even destroy your sight.

• The mother bird will dart at you and try to peck your eyes when you:

Choose the correct option from the passage.

Choose the correct one

Choose the correct one

GIRDLE

NOURISH

PURIFIED

I look at everyone and everything around me in the sea of ______ colors vibrating in the room.

Brighten up and refresh your mobile phone with a new ____ , cover or housing.

We wish them a hearty and ______ welcome and long peaceful lives in our parish community.

All submitted data were carefully _____ and checked for completeness.

Which of the following statements are mutually inconsistent?

1. Mostly poets are not egoistic.
2. Mostly poets are humble.
3.  Some poets are egoistic.
4. Some poets are not non-egoistic.

If ‘no politician is dishonest’ is false, then the statement ‘some politicians are dishonest’ shall be:

Statement: According to a report, not even a single institution of higher learning in India has appeared in the top 200 institutions of the world.

Courses of action

1. Government should privatize higher education.
2. The regulatory agencies must do introspection and work hard to raise the standard of education in higher learning institutions.

Statement: A number of school children in the local schools have fallen ill after consumption of subsidized meals provided by the school authorities.

Courses of action

1. This kind of government scheme should be discontinued with immediate effect.
2. The government should put in place a more effective system to check the quality of meal provided to the students.

In a group of five person A, B, C, D and E one plays Tennis, one plays Chess and one Hockey. A and D are unmarried women and· play no game. There is a couple among them where E is husband of C. No women plays either Chess or Hockey. B is the brother of C and he neither plays Tennis nor Chess. Who plays Hockey here?

Points out the letter which represents Indians and historians but not politicians on the basis of these three' circles?

Which number should be the next number in the series 

48, 24, 12, _?_

Choose the correct cause and effect relation

1. All the colleges had to be kept closed in the city for three days a week.
2. Many students have left the local colleges

Which of the following is different from the others in the given diagram?

Which of the following shows correct cause and effect relation?