Red light is used in photographic dark room because of:

Federal MDCAT 2022
Physics
Elimination Tool:

A) More frequency, less wavelength
B) Less frequency, less wavelenght
C) Less frequency, more wavelenght
D) More frequency, more wavelength

Lenz’s law is also a state of the law of conservation of

Federal MDCAT 2022
Physics
Elimination Tool:

A) Charge
B) Energy
C) momentum
D) mass

The thermodynamic process during which volume of the system remain constant is called

Federal MDCAT 2022
Physics
Elimination Tool:

A) isothermal
B) isobaric
C) isochoric
D) adiabatic

1 Nms-1= —

Federal MDCAT 2022
Physics
Elimination Tool:

A) 1kwh
B) j/s
C) 1 watt
D) js-2

The unit of power in British engineering system is:

Federal MDCAT 2022
Physics
Elimination Tool:

A) Horse power
B) watt
C) j/s
D) Js

The increase in the speed of sound for each degree rise above 0 degree is

Federal MDCAT 2022
Physics
Elimination Tool:

A) 0.61 m/s
B) 0.51 m/s
C) 0.41 m/s
D) 0.31 m/s

Electric potential is defined as

Federal MDCAT 2022
Physics
Elimination Tool:

A) work per unit charge
B) force per unit charge
C) power per unit charge
D) force

Transformer works on the principle of:

Federal MDCAT 2022
Physics
Elimination Tool:

A) Lenz’s law
B) Faraday’s law
C) magnetic induction
D) Ampere’s law

The gradient of velocity time is equal to

Federal MDCAT 2022
Physics
Elimination Tool:

A) Distance
B) Force
C) Acceleration
D) Speed

The capacitance of a capacitor does not depend upon

Federal MDCAT 2022
Physics
Elimination Tool:

A) Area of plates
B) Medium
C) Distance between plates
D) Thickness

In fleming’s right hand rule the middle finger indicates:

Federal MDCAT 2022
Physics
Elimination Tool:

A) force
B) magnetic field
C) induced current
D) volt

A car of mass 800kg accelerates from 20ms-1 to 30ms-1. The increase in kinetic energy will be

Federal MDCAT 2022
Physics
Elimination Tool:

A) 2J
B) 200kJ
C) 200J
D) 2kJ

The ultrasonic waves have frequency higher than

Federal MDCAT 2022
Physics
Elimination Tool:

A) 20 hz
B) 20k Hz
C) 200 k Hz
D) 2000 kHz

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

Federal MDCAT 2022
Physics
Elimination Tool:

A) 0°
B) 45°
C) 60°
D) 180°

Which of the following is the angular speed in radians per hour of the daily rotation of our earth?

Federal MDCAT 2022
Physics
Elimination Tool:

A) 2pi
B) 4pi
C) pi/6
D) pi/12

The conversion of alternating current into direct current is called rectification and circuit is called rectifier. Which component of electronics act as a rectifier?

Federal MDCAT 2022
Physics
Elimination Tool:

A) Diode
B) Transistor
C) Transformer
D) Inductor

Which X-ray photon will have the longest wavelength?

Federal MDCAT 2022
Physics
Elimination Tool:

A) K alpha
B) K beta
C) K gamma
D) M

The efficiency of a full wave rectifier circuit is almost ——– than half wave rectifier circuit.

Federal MDCAT 2022
Physics
Elimination Tool:

A) Four times
B) same as
C) Sixteen times
D) double

Which one of the following series lies in the ultraviolet region?

Federal MDCAT 2022
Physics
Elimination Tool:

A) Balmer
B) Paschan
C) Lyman
D) Bracket

Which photons carry the most energy?

Federal MDCAT 2022
Physics
Elimination Tool:

A) Blue
B) Violet
C) Red
D) Green

The efficiency of the transformer is:

Federal MDCAT 2022
Physics
Elimination Tool:

A) 60
B) 70
C) 80
D) 90

Which of the following factor does not affect the speed of sound in air?

Federal MDCAT 2022
Physics
Elimination Tool:

A) pressure
B) density
C) temperature
D) medium

The centripetal force in terms of angular velocity is

Federal MDCAT 2022
Physics
Elimination Tool:

A) Fc= mrw
B) Fc= mrw2
C) Fc= mra2
D) Fc= mra

Two cars travelling on straight road in opposite direction with speed 70km/hr, 60km/hr their relative velocity will be

Federal MDCAT 2022
Physics
Elimination Tool:

A) 10km/h
B) 130km/h
C) 65 km/h
D) 5km/h

Two bodies having same mass undergo elastic collision then their velocities after collision will be

Federal MDCAT 2022
Physics
Elimination Tool:

A) vi = 0, v2 = vi
B) vi = v2, v2 = 0
C) vi = vi, v2 =v2
D) vi = v2, v2 = vi

The tension in the string at the top of the vertical circle is

Federal MDCAT 2022
Physics
Elimination Tool:

A) zero
B) mg
C) 2mg
D) 4mg

What is the velocity of a projectile at the highest point?

Federal MDCAT 2022
Physics
Elimination Tool:

A) vx= 0, vy=0
B) vx= 0, vy constant
C) vx= constant, vy= constant
D) vx= constant, vy=0

The half-life of Iodine-31 is

Federal MDCAT 2022
Physics
Elimination Tool:

A) 10 days
B) 8 days
C) 45 days
D) 60 days

The total resistance of wire is inversely proportional to

Federal MDCAT 2022
Physics
Elimination Tool:

A) length
B) area
C) temperature
D) time

Continuous regular and rhythmic disturbance in a medium resulting in periodic vibration of a source causes _____ in a medium.

Federal MDCAT 2022
Physics
Elimination Tool:

A) complex wave
B) stationary wave
C) electromagnetic wave
D) periodic waves

Electric intensity due to charge distribution is calculated using which of the following?

Federal MDCAT 2022
Physics
Elimination Tool:

A) Ohm’s law
B) Faraday’s Law
C) Gauss’s law
D) Ampere’s Law

The conditions for the application of Boyle’s law hold good in

Federal MDCAT 2022
Physics
Elimination Tool:

A) adiabatic
B) isothermal
C) isobaric
D) isochoric

Ohm-meter is the unit of

Federal MDCAT 2022
Physics
Elimination Tool:

A) resistance
B) resistivity
C) conductance
D) conductivity

A process in which only one half of the alternating current is converted into direct current such process is called

Federal MDCAT 2022
Physics
Elimination Tool:

A) Full wave rectification
B) Amplification
C) Half wave rectification
D) Magnification

The angle of a projection at which it’s maximum height and horizontal range are equal is:

Federal MDCAT 2022
Physics
Elimination Tool:

A) 86°
B) 46°
C) 66°
D) 76°

Slope of distance time graph can never be:

Federal MDCAT 2022
Physics
Elimination Tool:

A) positive
B) negative
C) zero
D) constant

In inter-conversion of energy, the work done against the friction is:

Federal MDCAT 2022
Physics
Elimination Tool:

A) f+h
B) f-h
C) fh
D) f/h

Maximum displacement of particles from its mean position is called

Federal MDCAT 2022
Physics
Elimination Tool:

A) frequency
B) amplitude
C) wavelength
D) crest

Wavelength of wave is defined as

Federal MDCAT 2022
Physics
Elimination Tool:

A) distance between two consecutive crests
B) distance between two alternate crest
C) distance between two alternate rough
D) distance between two crest and two trough

When a charged particle enter the magnetic field parallel then it will

Federal MDCAT 2022
Physics
Elimination Tool:

A) deflect towards north
B) deflect towards south
C) move straight
D) move in circular path

The half-life of caron is 5730 years. How much carbon will be left after 22920 years?

Federal MDCAT 2022
Physics
Elimination Tool:

A) 1/32
B) 1/16
C) 1/64
D) 1/4

How many radians are in one degree

Federal MDCAT 2022
Physics
Elimination Tool:

A) 0.0174rad
B) 0.174 rad
C) 1.745 rad
D) 0.00174 rad

The force exerted on the charged particle will be maximum when it enters the magnetic field at

Federal MDCAT 2022
Physics
Elimination Tool:

A) 60°
B) 90°
C) 0°
D) 45°

Skin burns, loss of hair, drop in white blood cells, etc are examples of:

Federal MDCAT 2022
Physics
Elimination Tool:

A) somatic effect
B) genetic effect
C) metbolism effect
D) mutation effect

Kilowatt-hour is the unit of

Federal MDCAT 2022
Physics
Elimination Tool:

A) energy
B) energy x time
C) power
D) power x energy

Two balls collide with each other it has been observed that the collision is elastic which statement advocates the information

Federal MDCAT 2022
Physics
Elimination Tool:

A) KE before collision = KE after collision
B) momentum before collision =momentum after collision
C) KE before the collision is not equal to KE after collision
D) momentum before collision not equal to KE after collision

At what pair of angles for a projectile the ranges are equal?

Federal MDCAT 2022
Physics
Elimination Tool:

A) 20, 60
B) 60, 30
C) 40, 60
D) 25, 55

1eV is equal to

Federal MDCAT 2022
Physics
Elimination Tool:

A) 1.602 x 10^-19 J
B) 16.20 x 10^-19 J
C) 1620 J
D) 162.0 x10^-19 J

Which of the following is the angular velocity of an electric motor if it is 400 RPM?

Federal MDCAT 2022
Physics
Elimination Tool:

A) 51.2 rad/s
B) 41.9 rad/s
C) 45.2 rad/s
D) 38.5 rad/s

The SI unit of potential difference is

Federal MDCAT 2022
Physics
Elimination Tool:

A) volt
B) Coloumb
C) watt
D) eV

The SI unit for magnetic induction (B) is tesla and tesla is equal to

Federal MDCAT 2022
Physics
Elimination Tool:

A) NA-1 m-1
B) NmA-1
C) N-1mA
D) NmA

The internal energy of a system during isothermal process

Federal MDCAT 2022
Physics
Elimination Tool:

A) decrease
B) increase
C) become zero
D) remain constant

The government has increased the taxes on all businesses in Pakistan.

Many small businesses will have to close their operation in Pakistan.

Federal MDCAT 2022
Logical Reasoning
Elimination Tool:

A) Statement I is the cause and Statement II is the effect.
B) Statement II is the cause and Statement I is the effect.
C) Both statements I and II are independent causes.
D) Both the statement I and II are the effects of independent causes.

All hammers are tools. Some tools are useless things. All useless things are trash. Which of the following is NECESSARILY TRUE given only the information above?

Conclusions

I. Some hammers are trash.

II. Some tools are trash.

III. All useless things are tools.

Federal MDCAT 2022
Logical Reasoning
Elimination Tool:

A) I and III
B) I and II
C) II and III
D) II

Read the following statement, assuming everything in it to be true. Then consider which one of the given suggested courses of action logically follow and are pursuing.

Statement:

My laptop’s battery is low and needs to be charged.

Course of action

I. Stop using the laptop to save power.

II. Get a new fully charged battery and replace it with an old one.

Federal MDCAT 2022
Logical Reasoning
Elimination Tool:

A) I
B) II
C) Both I and II
D) Neither I NOR II

Read the passage and the following statements below. then choose the option basing your answer only on the option provided.

The early Mediaeval period ( 642-1219 CE) witnessed the spread of Islam in regions which is now known as Pakistan. during this period Sufi missionaries played a pivotal rule in converting a majority of the regional Buddhist and population to islam.

I. Islam was spread in Pakistan region during early Mediaeval period.

II. Sufi missionaries converted alot of people to islam during this time.

III. It can be said that the Sufis were responsible for Pakistan ultimately by an Islamic country.

Federal MDCAT 2022
Logical Reasoning
Elimination Tool:

A) Only I is correct.
B) Only I and II are correct.
C) I, II and III all are correct.
D) Only I and III are correct.

Read the following and choose the correct answer.

X, Y and Z are three whole numbers less than 24 but greater than 11. X is the smallest prime number. Y is the largest number divisible by 3. Z is the smallest number divisible by 11

Federal MDCAT 2022
Logical Reasoning
Elimination Tool:

A) X is 13, Y is 24, Z is 11
B) X is 13, Y is 21, Z is 22
C) X is 11, Y is 21, Z is 11
D) X is 11, Y is 24, Z is 22

The binding energy of transition metals increases upto group __________.

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) II B
B) IV B
C) III B
D) VI B

One mole of the substance is the amount of substance that has the same number of particles as their are atoms exactly

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) 1.008g of hydrogen gas H2
B) 16g of oxygen gas O2
C) 12g of C-12 isotope
D) 12g of magnesium

One calorie is equal to:

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) 4.18 KJ
B) 4.18J
C) 0.418 KJ mol-1
D) 0.418 KJ

The type of bonding in Zinc is:

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Ionic
B) Covalent
C) Dative
D) Metallic

The unit of rate constant is the same as that of the rate of reaction in which of the following order of the reaction?

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) zero
B) first
C) second
D) third

The correct order of reactivity of hydrocarbon is:

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Alkane > Alkynes > Alkene
B) Alkene> Alkane > Alkyne
C) Alkyne >Alkene> Alkane
D) Alkene> Alkyne> Alkane

Collision shown by gases molecules involve

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) no energy change
B) no pressure change
C) small energy change
D) large energy change

The unit of kinetic energy is the same as

Federal MDCAT 2022
Physics
Elimination Tool:

A) work
B) power/ time
C) time/ power
D) work/ time

Which of the following properties decreases in group 2 as we go down the group?

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Shielding
B) Atomic number
C) proton number
D) Ionization energy

Grignard reagent is formed when alkyl halide reacts with _________ in the presence of anhydrous conditions.

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) calcium
B) potassium
C) sodium
D) magnesium

The transition element which doesn’t show variable valency?

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Cu
B) Sc
C) Zn
D) Cr

The shape of the subshell is explained by which of the following quantum number?

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Principal quantum number
B) Azimuthal quantum number
C) Magnetic quantum number
D) Spin quantum number

For the reaction given below:

N2+ 3H2 ——-> 2NH3

How many moles of N2 are required for the synthesis of 4 moles of NH3?

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) 4 moles of N2
B) 2 moles of N2
C) 3 moles of N2
D) 4.5 moles

Both alcohol and phenol contain

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) OH group
B) COOH group
C) CH2 group
D) CHO group

Select the correct order of the relative strength of phenol, alcohol, water, and carboxylic acid

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Carboxylic acid> water> phenol >alcohol
B) Carboxylic acid> phenol > water >alcohol
C) Carboxylic acid> alcohol > phenol > water
D) Carboxylic acid> water> alcohol > phenol

The correct equation for the first law of thermodynamic is:

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) E = q + w
B) E = w-q
C) E = q –PV
D) E = q +PV

The thermal energy at constant pressure is called:

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Enthalpy
B) Internal energy
C) Heat capacity
D) work done

Oxidation number of an element in free state is:

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Negative
B) positive
C) zero
D) +/-1

If a reaction is first order with respect to a reactant then the rate will be —— if the concentration of the reactant is doubled.

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Doubled
B) halved
C) One fourth
D) quadrupled

The electronic configuration for degenerated orbitals is explained by

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Aufbau principle
B) N + l rule
C) Hunds rule
D) Pauli exclusion principle

Which of the following has the greatest difference of electronegativity?

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) HF
B) HCl
C) HBr
D) HI

Catalytic reduction of aldehydes and ketone form

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Alcohol
B) Carboxylic acid
C) Alkane
D) Aldehyde

The branch of science which deals with the conversion of electrical and chemical energy and vice versa is called.

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Electrochemistry
B) Thermochemistry
C) Stereochemistry
D) Biochemistry

Carbon atoms in ethane are —– hybridized?

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) sp3
B) sp2
C) sp
D) sp3d

Al reacts with O2 according to following reaction

4Al + 3O2 ——->2Al2O3

27g of Al react with how much moles of O2?

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) 8g
B) 16g
C) 24g
D) 32g

Which one of the following provides centripetal force in a circular motion of a body

Federal MDCAT 2022
Physics
Elimination Tool:

A) vertical component of weight
B) horizontal component of weight
C) weight of body
D) Force of friction

The type of isomerism arising due to shifting of one atom to another in the same molecule is

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Chain isomerism
B) Meta merism
C) Tauto merism
D) Position isomer

Ionization energy decreases down the group because:

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Shielding remains constant
B) Atomic radius remains constant
C) Proton number increases
D) Atomic radius increase

Which one of the following is a semiconductor?

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Al
B) Si
C) P
D) Mg

According to Charles’s law volume of gas reduces to zero at

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) -12∘C
B) -0∘C
C) -273.15∘C
D) -210∘C

Ice floats on the surface of water due to

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Larger bond length

B) Cubic structur of ice

C) Weak intermolecular force

D) empty spaces in structur eof ice

Alkyl halides are also known as halogen derivatives of

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Alkane
B) Alkene
C) Alkyne
D) Alcohol

Which of the following alkali metals can form normal oxide as well as peroxide?

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Na
B) K
C) Li
D) Cs

When aldehyde reacts with 50 % NaOH this reaction is called _________.

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) 2.4-NDPH reaction
B) Aldol condensation reaction
C) Clemmenson reaction
D) Cannizaro reaction

Principal quantum number is represented by which symbol?

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) m
B) n
C) s
D) l

Phenols are very reactive towards

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Oxidizing agent
B) Reducing agent
C) Hygroscopic agent
D) Dehydrating agent

Carboxylic acid react with alcohol to form

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Ester
B) Aldehyde
C) Ketone
D) Alkyl halide

In alkane each carbon atom has hybridization _________.

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) sp3
B) sp
C) sp2
D) dsp

Homo cyclic organic comounds are sub divided into two groups namely

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) alicyclic and aromatic
B) Open and branched chain
C) Aromatic and non aromatic
D) anti aromatic

Reactivity order of halogens is

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) HF > HCL> HBr > HI
B) HBr > HCl > HI
C) HCl> HBr >HI > HF
D) HI> HBr >HCl > HF

Which of the following has highest boiling point

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) C4H10
B) C5H14
C) C10H22
D) C2H4

Which of the the following has highest surface tension?

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Benzene
B) Alcohol
C) Ether
D) Water

Which statement correctly describes the term standard electrode potential?

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) It is the electrode potential determined at room temperature and pressure.
B) It is the electrode potential determined under standard conditions using standard hydrogen electrode as the other electrode
C) It is the electrode potential of an element and its solution compared to a standard value.
D) It is the potential which is measured when the two half cells are connected together.

Maximum number of electrons which can be placed in an orbital is

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) 1
B) 2
C) 3
D) 4

Based upon function thyroxine can be classified as

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Hormonal protein
B) Structural protein
C) Transport protein
D) Genetic protein

What is incorrect about the activated complex?

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) It is high energy specie
B) It is a stable specie
C) It is an unstable specie
D) Potential energy is maximum at activated complex stage

Air is a mixture of gases. the molecules of air do not settle down due to

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) different molar gas
B) non polar nature of gas
C) presence of dirt particle in air
D) elastic collission of gas molecules

Which of the following is not the use of a buffer solution?

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Use for calibration of pH meter
B) Use to preserve biological specimen
C) Maintain pH of human blood
D) Predict the concentration of a substance

Enzyme is a natural substance that

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Increase rate of chemical reaction
B) decrease rate of chemical reaction
C) has no effect on chemical reaction
D) Stops chemical reaction

The strongest hydrogen bond is present in

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) HF
B) H2O
C) H2S
D) NH3

Which of the following is not oxidized by any oxidizing agent?

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Benzene
B) Toulene
C) Ethylbenzene
D) Xylene

Posteriot lobe of pituitary gland produces ___________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Oxytocin
B) TSH
C) ACTH
D) FSH

Glycogen lipid droplet forms the most important ___ of the cell.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Cell organelle
B) Cell inclusions
C) Non-membranous organelle
D) Cell matrix

Vasopressin is an example of __________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Steroid hormone
B) Catechol amine
C) Peptide hormone
D) Glycoprotein

Which function is not controlled by hypothalamus?

Federal MDCAT 2022
Biology
Elimination Tool:

A) Regulates hunger
B) Regulate sleep
C) Regulate water balance

D) Store long time memory

The enzyme ATP synthase is located in the membrane of?

Federal MDCAT 2022
Biology
Elimination Tool:

A) Mitochondria
B) Lysosomes
C) Golgi apparatus
D) Nucleus

Adenylyl cyclase in the cell membrane act as ____________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Channel protein
B) Carrier protein
C) Enzyme
D) Receptor

Enzymes work by lowering the ____ of the reaction they catalyze.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Kinetic energy
B) Activation energy
C) Heat energy
D) Potential energy

Among the oldest known fossils comes the __________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Prokaryotes
B) Amphibians
C) Reptiles
D) Fishes

Muscle contraction involves the breakdown of cross-bridges of active myosin filaments due to the following process.

Federal MDCAT 2022
Biology
Elimination Tool:

A) ATP is oxidized
B) ATP is reduced
C) ATP is hydrolyzed
D) ATP is synthesized

The best temperature for spermatogenesis is

Federal MDCAT 2022
Biology
Elimination Tool:

A) 37 °C
B) 32°C
C) 30°C
D) 35°C

Enzyme trypsinogen is activated by _________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) HCl
B) Pepsin
C) Enterokinase
D) Eyrpsin

He presented the theory of origin of species by means of natural selection.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Lamarck
B) Linneaus
C) Hardy- Weinberg
D) Darwin

When 2 ice cubes are pressed over each other they unite to form one cube due to:

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Dipole dipole interaction
B) Covalent interaction
C) Van der Waals force
D) H bonding

Negative feedback mechanism is the characteristic of which class?

Federal MDCAT 2022
Biology
Elimination Tool:

A) Class fish
B) Class amphibia
C) Class reptilia
D) Class Mammalia

By which of the following factors equilibrium state is attained earlier?

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Temperature
B) Pressure
C) Concentrations
D) Catalysts

Tetany is caused by ____ in blood.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Low Ca
B) High Ca
C) Low Mg
D) High Mg

Select the duration of cardiac cycle.

Federal MDCAT 2022
Biology
Elimination Tool:

A) 0.6s
B) 0.4s
C) 0.8s
D) 0.7s

Light independent phase of photosynthesis involves ____________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Formation of energy rich carbohydrates
B) Hydrolysis of water
C) ATP generation
D) Production of reducing molecule

High pressure of 200 atm in Haber process is used for:

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Better yield
B) Lower yeild

C) Lower rate
D) Cost change

Lymphatic system contains all of the following organs except __________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Lymph masses
B) Lymph vessel
C) Spleen
D) Lungs

All viruses are ____________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Autotrophs
B) Heterotrophs
C) Parasites
D) Predators

What is the function of myoglobin?

Federal MDCAT 2022
Biology
Elimination Tool:

A) Store oxygen
B) Store CO2
C) Transport oxygen
D) Transport O2

The hydrophobic fatty acid tails and a glycerol molecule join to form a _________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Monoglyceride
B) Diglyceride
C) Triglyceride
D) Phospholipids

The unique macromolecule in the bacterial cell wall is ____________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Polysaccharide
B) Proteins
C) Peptidoglycan
D) Cholestrol

Which of the following carbohydrates are sweet among all?

Federal MDCAT 2022
Biology
Elimination Tool:

A) Monosacchrides
B) Disacchrides
C) Oligosacchride
D) Polysacchride

Which is the contribution of hormone cholecystokinin?

Federal MDCAT 2022
Biology
Elimination Tool:

A) Facilitates release of bile from the gallbladder
B) Mucus release from the stomach
C) Production of bile from the liver
D) Gastric juice release from stomach

All of the following are the physical methods to control bacteria except ____________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Sterilization
B) Boiling
C) Radiation
D) Antiseptics

Emulsification of large fat globules is facilitated by _________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Lipase
B) Bile salts
C) Trypsin
D) Chymotrypsin

The organelle which transmit neurotransmitters in the nervous pathway is _______.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Glyoxysome
B) Peroxisomes
C) Golgi bodies
D) Endoplasmic Reticulum

In human heart, the left atrium receives __________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Superior vena cava
B) Inferior vena cava
C) Coronary sinus
D) Four pulmonary veins

These are the genes which tend to be inherited together and do not assort independently.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Linked genes
B) Dependent genes
C) Recombinant genes
D) Independent genes

Select an example of a fibrous protein.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Enzymes
B) Collagen
C) Hb
D) Hormones

____ reduces the enzyme productivity by blocking the substrate to enter the active site due to similar shape.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Competitive inhibitor
B) Non-competitive inhibitor
C) Coenzyme
D) Activator

The first chemical digestion of proteins takes place in _______.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Mouth
B) Oesophagus
C) Stomach
D) Intestine

After fertilization, the zygote takes ____ for its journey from the fallopian tube toward uterus.

Federal MDCAT 2022
Biology
Elimination Tool:

A) 6-7 days
B) 3-6 days
C) 10-12 days
D) 12-15 days

Leydig cells in testes are responsible for

Federal MDCAT 2022
Biology
Elimination Tool:

A) Testosterone production
B) FSH production
C) Sperm production
D) Testosterone inhibition

Which organelle is more abundant in secretory cells than other cells?

Federal MDCAT 2022
Biology
Elimination Tool:

A) Lysosomes
Show Explanation
B) Golgi vesicles
Show Explanation
C) Vacuoles
Show Explanation
D) Centrioles
Show Explanation

The area between the two lungs is called ___________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Periosteum
B) Infundibulum
C) Mediastinum
D) Hilum

The element whose electrons are excited during light reactions of photosynthesis is _________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Carbon
B) Hydrogen
C) Magnesium
D) Nitrogen

The feelings and emotions of love and hate are controlled by ___________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Amygdalae
B) Hippocampus
C) Thalamus
D) Hypothalamus

Vaccination is an example of __________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Natural passive immunity
B) Natural active immunity
C) Acquired active immunity
D) Acquired passive immunity

The molecules of iodine form the ________.

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) Molecular crystals
B) Ionic crystals
C) Covalent crystals
D) Metallic crystal

Transfer of genetic material from one bacteria to another through a third party usually a bacteriophage is called?

Federal MDCAT 2022
Biology
Elimination Tool:

A) Conjugation
B) Transformation
C) Transduction
D) Transportation

A joint in which the ends of bones are covered with hyaline cartilage and are held together by surrounding tubes like capsules of dense connective tissue is called

Federal MDCAT 2022
Biology
Elimination Tool:

A) Cartilaginous joint
B) Synovial joint
C) Fibrous joint
D) Immovable joints

Chemically, cell wall of fungi is made up of __________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Cellulose
B) Lignin
C) Chitin
D) Murine

_____ is the inflammation of joints.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Osteoarthritis
B) Osteoporosis
C) Arteriosclerosis
D) Osteosclerosis

Select the hormone which increases the activity of parietal and chief cells.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Cholecystokinin
B) Secretin
C) Gastrin
D) Acetylcholine

The inner membrane of mitochondria is folded to form a finger like __________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Cisternae
B) Cristae
C) Chromatin
D) Chloroplast

Which molecule does not contribute in the formation of biological membrane?

Federal MDCAT 2022
Biology
Elimination Tool:

A) Glycoprotein
B) Glycolipids
C) Phospholipid
D) Nucleoprotein

The catalytic activity of enzyme is restricted to a small portion called _________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Active site
B) Passive site
C) Allosteric site
D) Regulatory site

Which of the following is transmitted through infected blood and syringes?

Federal MDCAT 2022
Biology
Elimination Tool:

A) HIV
B) Influenza virus
C) Morbili virus
D) Vibrio cholera

Microscopic gap between the two neurons is called ___________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Synapsis
B) Synapse
C) Collapse
D) Synaptic knob

Intracellular digestion of food is done by the organelle __________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Vacuoles
B) Ribosome
C) Golgi bodies
D) Lysosomes

For the chemical reaction
N2(g) +3H2(g) ->2NH3(g), we can maximize the yield by

Federal MDCAT 2022
Chemistry
Elimination Tool:

A) By increasing temperature
B) By decreasing pressure
C) By increasing volume of reaction vessel
D) By continous withdrawl of ammonia after intervals

Which axon transmits the action potential more rapidly?

Federal MDCAT 2022
Biology
Elimination Tool:

A) 1mm diameter neuron, lacking myelin
B) 1mm diameter neuron, with myelin

C) 2mm diameter neuron, lacking myelin
D) 2mm diameter neuron with myelin

In neurons, the message is transmitted across synapses in the form of a chemical messenger called __________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Communication
B) Neurotransmitter
C) Nerve impulse
D) Nocireceptor

Which of the following helps in developing immunity against germs?

Federal MDCAT 2022
Biology
Elimination Tool:

A) Radiotherapy
B) Chemotherapy
C) Vaccination
D) Antibiotics

The structure which disappears during cell division is _________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Vacuoles
B) Lysosomes
C) Nucleolus
D) Endoplasmic reticulum

Which of the following is true about amoeba?

Federal MDCAT 2022
Biology
Elimination Tool:

A) They have flagella
B) They are multicellular
C) They do not cause any disease in human
D) They move by pseudopodia

Which bond is the potential source of energy for cellular activities?

Federal MDCAT 2022
Biology
Elimination Tool:

A) C=O
B) C-H
C) C-R
D) C-N

In a reflex arc, the cell body of sensory neuron is located at ___________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Ventral root ganglion
B) Grey matter of spinal cord
C) White matter of spinal cord
D) Dorsal root ganglion

Which of the following is not the component of bile?

Federal MDCAT 2022
Biology
Elimination Tool:

A) Digestive enzymes
B) Salts
C) Mucus
D) Lecithin

The pathway of water transportation, in which water moves through plasmodesmata is ______.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Apoplast
B) Symplast
C) Vaculoar
D) Ascent of sap

Most enzymes have an optimum temperature of around __________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) 30°C
B) 40°C
C) 50°C
D) 80°C

In human female, FSH stimulates

Federal MDCAT 2022
Biology
Elimination Tool:

A) Follicle development
B) Ovulation
C) Embryo implantation
D) Menstruation

Which function is not performed by proteins?

Federal MDCAT 2022
Biology
Elimination Tool:

A) Providing structural support to cell
B) Catalyzing biochemical reactions
C) Transporting material across membrane
D) Providing insulation against heat loss

Which organelle of an animal cell is called a suicidal bag?

Federal MDCAT 2022
Biology
Elimination Tool:

A) Peroxisomes
B) Lysosomes
C) Glyoxysome
D) Food vacuoles

In human female FSH stimulate

Federal MDCAT 2022
Biology
Elimination Tool:

A) Follicle deveelopment
B) Ovulation
C) Embryo implantation
D) Menstruation

The maximum enzymatic activity of pepsin is shown at _________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) pH 2
B) pH 4
C) pH 6
D) pH8

Which property of water enables it to act as a temperature stabilizer in living organisms?

Federal MDCAT 2022
Biology
Elimination Tool:

A) High polarity
B) Being non-polar
C) High specific heat capacity
D) High heat of vaporization

Mendelian inheritance follows which of the following dominance relation?

Federal MDCAT 2022
Biology
Elimination Tool:

A) Complete dominance
B) Incomplete dominance
C) Co-dominance
D) Multiple allelic dominance

In terms of enzyme action, maximum temperature refers to a temperature at which _____________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Enzyme starts to denature
B) Enzyme starts to renature
C) Enzyme works best
D) Enzyme is reactivated

Each grana consist of ____ thylakoids.

Federal MDCAT 2022
Biology
Elimination Tool:

A) 40 to 60
B) 25 to 50
C) 50 to 70
D) 100 to 200

Choose the correct sentence.

Federal MDCAT 2022
English
Elimination Tool:

A) Your voice was recognised by me at once.
B) All her boats has been lost in the storm.
C) A committee of five were appointed.
D) The crowd were very big.

Finally, the accused was found guilty ___ his crime.

Federal MDCAT 2022
English
Elimination Tool:

A) From
B) Of
C) For
D) To

Identify the errors and choose the correct option.

Federal MDCAT 2022
English
Elimination Tool:

A) Time, tide wait for no men.
B) Time and tide wait for no man.
C) The time and the tide weight for no man.
D) Time tide wait over know man

Choose the correct spelling.

Federal MDCAT 2022
English
Elimination Tool:

A) Defficiency
B) Dafficiency
C) Deficiency
D) defeciency

Choose the correct spelling.

Federal MDCAT 2022
English
Elimination Tool:

A) Renessance
B) Renaisance
C) Renaisance
D) Renaissance

Identify the error in the sentence and choose the correct answer.

Federal MDCAT 2022
English
Elimination Tool:

A) Tennis gives you plenty of exercise, it develops quickness of eyes and calls your brain, your thinking power into action.
B) Tennis gives you plenti off exercise, it develops quickness of eyes and limb your brain, your thinking power into action.
C) Tennis gives you plenti off exercise, it develops quickness of eyes and limb upon your brane, your thinking power over action.
D) Tennis gives you plenty of exercise; it develops quickness of eyes and calls your brain, your thinking power into action.

Choose the correct spelling.

Federal MDCAT 2022
English
Elimination Tool:

A) Expident
B) Expedent
C) Expedient
D) Expediant

I don’t think I ____ be able to go.

Federal MDCAT 2022
English
Elimination Tool:

A) Can
B) Should
C) Shall
D) Must

Ethics _____ important for a peaceful and loving society.

Federal MDCAT 2022
English
Elimination Tool:

A) Have
B) Has
C) Are
D) Is

Hundreds of years old palace could not withstand the ____ of heavy rain.

Federal MDCAT 2022
English
Elimination Tool:

A) Aftermath
B) Havoc
C) Annoyance
D) Massacre

Choose the correct option.

Negotiations between the two sides have ………….

Federal MDCAT 2022
English
Elimination Tool:

A) Broken off
B) Broken down
C) Broken up
D) Broken in

How cold the night is!

Which type of sentence it is?

Federal MDCAT 2022
English
Elimination Tool:

A) Interrogative
B) Declarative
C) Exclamatory
D) Imperative