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 total resistance of wire is inversely proportional to

Federal MDCAT 2022
Physics
Elimination Tool:

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

Kilowatt-hour is the unit of

Federal MDCAT 2022
Physics
Elimination Tool:

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

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

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

Slope of distance time graph can never be:

Federal MDCAT 2022
Physics
Elimination Tool:

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

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

Which photons carry the most energy?

Federal MDCAT 2022
Physics
Elimination Tool:

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

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

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

1 Nms-1= —

Federal MDCAT 2022
Physics
Elimination Tool:

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

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 gradient of velocity time is equal to

Federal MDCAT 2022
Physics
Elimination Tool:

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

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

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

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

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

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

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

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

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

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

Ohm-meter is the unit of

Federal MDCAT 2022
Physics
Elimination Tool:

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

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

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

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

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

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

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

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

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

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°

The SI unit of potential difference is

Federal MDCAT 2022
Physics
Elimination Tool:

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

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

Maximum displacement of particles from its mean position is called

Federal MDCAT 2022
Physics
Elimination Tool:

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

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

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

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

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 efficiency of the transformer is:

Federal MDCAT 2022
Physics
Elimination Tool:

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

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

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

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 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 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 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

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°

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

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

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

Catalytic reduction of aldehydes and ketone form

Federal MDCAT 2022
Chemistry
Elimination Tool:

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

Alkyl halides are also known as halogen derivatives of

Federal MDCAT 2022
Chemistry
Elimination Tool:

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

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

In alkane each carbon atom has hybridization _________.

Federal MDCAT 2022
Chemistry
Elimination Tool:

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

The transition element which doesn’t show variable valency?

Federal MDCAT 2022
Chemistry
Elimination Tool:

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

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 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.

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

The strongest hydrogen bond is present in

Federal MDCAT 2022
Chemistry
Elimination Tool:

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

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

Principal quantum number is represented by which symbol?

Federal MDCAT 2022
Chemistry
Elimination Tool:

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

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

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

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

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

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

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

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

Phenols are very reactive towards

Federal MDCAT 2022
Chemistry
Elimination Tool:

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

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

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

Carbon atoms in ethane are —– hybridized?

Federal MDCAT 2022
Chemistry
Elimination Tool:

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

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

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

Both alcohol and phenol contain

Federal MDCAT 2022
Chemistry
Elimination Tool:

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

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

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 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

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

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

Carboxylic acid react with alcohol to form

Federal MDCAT 2022
Chemistry
Elimination Tool:

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

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

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

Which of the following has highest boiling point

Federal MDCAT 2022
Chemistry
Elimination Tool:

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

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

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

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

Which of the following has the greatest difference of electronegativity?

Federal MDCAT 2022
Chemistry
Elimination Tool:

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

Oxidation number of an element in free state is:

Federal MDCAT 2022
Chemistry
Elimination Tool:

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

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

Which one of the following is a semiconductor?

Federal MDCAT 2022
Chemistry
Elimination Tool:

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

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 of the the following has highest surface tension?

Federal MDCAT 2022
Chemistry
Elimination Tool:

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

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

The type of bonding in Zinc is:

Federal MDCAT 2022
Chemistry
Elimination Tool:

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

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

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

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

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 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

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

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

Choose the correct spelling.

Federal MDCAT 2022
English
Elimination Tool:

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

He began to ___ the heap of corns very carefully.

Federal MDCAT 2022
English
Elimination Tool:

A) Assess
B) Inspect
C) Analyze
D) Evaluate

Identify the error and choose the correct option.

Federal MDCAT 2022
English
Elimination Tool:

A) The wind blew, the rain fell, and the lightning flashed.
B) The wind bleu the rain fell, and the lightning flashed
C) The wind blew the rain fell, and the lightning flashed
D) The wind blew, the rain fell; and the lightning flashed.

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

The word CREDENTIALS mean

Federal MDCAT 2022
English
Elimination Tool:

A) Trust
B) Qualification
C) Credits
D) Belief

It ____ good players who bring good names to a country.

Federal MDCAT 2022
English
Elimination Tool:

A) Was
B) Were
C) Is
D) Are

The word ‘ritual’ means _________.

Federal MDCAT 2022
English
Elimination Tool:

A) Original
B) Religion
C) Routine
D) Custom

Choose the correct spelling.

Federal MDCAT 2022
English
Elimination Tool:

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

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

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

The terminal ends of chromosomes are called ____________.

Federal MDCAT 2022
Biology
Elimination Tool:

A) Satellites
B) Kinetochores
C) Nuclear organisation
D) Telomeres

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.

Engineers _____ working on a new project for the last three days.

Federal MDCAT 2022
English
Elimination Tool:

A) Are
B) Has been
C) Have been
D) Ought to be

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

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

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

Which of the following helps in developing immunity against germs?

Federal MDCAT 2022
Biology
Elimination Tool:

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

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

Federal MDCAT 2022
Biology
Elimination Tool:

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

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

_____ is the inflammation of joints.

Federal MDCAT 2022
Biology
Elimination Tool:

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

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

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

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

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

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

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

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 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

Tetany is caused by ____ in blood.

Federal MDCAT 2022
Biology
Elimination Tool:

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

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

Emulsification of large fat globules is facilitated by _________.

Federal MDCAT 2022
Biology
Elimination Tool:

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

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

Enzyme trypsinogen is activated by _________.

Federal MDCAT 2022
Biology
Elimination Tool:

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

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

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

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 enzyme ATP synthase is located in the membrane of?

Federal MDCAT 2022
Biology
Elimination Tool:

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

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

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

Select an example of a fibrous protein.

Federal MDCAT 2022
Biology
Elimination Tool:

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

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

Adenylyl cyclase in the cell membrane act as ____________.

Federal MDCAT 2022
Biology
Elimination Tool:

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

The first chemical digestion of proteins takes place in _______.

Federal MDCAT 2022
Biology
Elimination Tool:

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

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 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

Posteriot lobe of pituitary gland produces ___________.

Federal MDCAT 2022
Biology
Elimination Tool:

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

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

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

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

What is the function of myoglobin?

Federal MDCAT 2022
Biology
Elimination Tool:

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

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

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

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

In human female FSH stimulate

Federal MDCAT 2022
Biology
Elimination Tool:

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

Vasopressin is an example of __________.

Federal MDCAT 2022
Biology
Elimination Tool:

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

The best temperature for spermatogenesis is

Federal MDCAT 2022
Biology
Elimination Tool:

A) 37 °C
B) 32°C
C) 30°C
D) 35°C

The unique macromolecule in the bacterial cell wall is ____________.

Federal MDCAT 2022
Biology
Elimination Tool:

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

All viruses are ____________.

Federal MDCAT 2022
Biology
Elimination Tool:

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

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

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 area between the two lungs is called ___________.

Federal MDCAT 2022
Biology
Elimination Tool:

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

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

In human female, FSH stimulates

Federal MDCAT 2022
Biology
Elimination Tool:

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

____ 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

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

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 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 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

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

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

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

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

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

Which of the following carbohydrates are sweet among all?

Federal MDCAT 2022
Biology
Elimination Tool:

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

Among the oldest known fossils comes the __________.

Federal MDCAT 2022
Biology
Elimination Tool:

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

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

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

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

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

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

Select the duration of cardiac cycle.

Federal MDCAT 2022
Biology
Elimination Tool:

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

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 structure which disappears during cell division is _________.

Federal MDCAT 2022
Biology
Elimination Tool:

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