NUMS MDCAT Past Paper 2023 MCQs for medical and dental college admission test in National University of Medical Sciences Rawalpindi, Pakistan.
NUMS MDCAT Past Paper 2023 MCQs
If both temperature and volume of gas are doubled then pressure:
- Double
- reduce to half
- Remain same
- Cannot be predicted
SI unit of pressure is:
- Torr
- Bar
- Pascal
- mm of Hg
The idea that molecules in gas are in constant movement is called:
- Kinetic theory of gases
- Molecular orbital theory
- Transition state theory
- Crystal field theory
The electronic configuration for degenerate orbital is explain by:
- Paulii exclusion principal
- Aufbau principal
- Hund’s rule
- n+l rule
Which of the following Quantum number is not obtained from Schrodinger’s wave equation:
- Spin
- Magnetic
- Principal
- Azimuthal
The number of directions of f-orbital in space are:
- 6
- 7
- 5
- 3
The value of azimuthal quantum number is 2 then values of magnetic quantum number are:
- 5
- 3
- 10
- 7
The amount of energy associated with quantum of radiation is directly proportional to:
- Wavelength
- Frequency
- velocity
- Photon
What is mass of Sulphur in 24.5 g of H2S04 :
- 16 g
- 24 g
- 32 g
- 8 g
Hydrolysis of Nitriles produces:
- Carboxylic acid
- Ketones
- Aldehydes
- Esters
Which of the following reacts with Carboxylic Acid to:
- Ketones
- Aldehyde
- Alcohol
- Alkyl Halide
Catalytic reduction of aldehyde & Ketone forms:
- Carboxylic acid
- Aldehyde
- Alcohol
- Alkane
CnH2n0 is the general formula of:
- Ether
- Carboxylic acid
- Carbolic acid
- Ketones
Which of the following reactions differentiates alcohol from phenol:
- Halogenations
- Lucas test
- Nitration
- Iodoform test
Generic formula of cycloalkane is:
- CnH2nO2
- CnHnO2
- CnH2nO
- CnH2n
Acetophenone can be formed by which of the following reaction:
- Nitration
- Alkylation
- Halogenation
- Acylation
The cracking method used to obtain better quality gasoline is:
- Steam
- Catalytic
- Radiations
- Thermal
Co-ordination number of Na is:
- 8
- 9
- 12
- 10
Which of the following is malleable and ductile :
- Aluminum
- NaCI
- Mercury
- Copper sulphate
Which of the following has sp3 hybridization :
- C2H4
- BeCI
- CH4
- BF3
Valance shell electron pair repulsion theory explains:
- Shapes
- Shapes and Bond Energy
- Bond Energy
- Bond Length
During electrolysis, reduction always occurs at the:
- Cathode
- SHE
- Salt bridge
- Anode
When nitric acid reacts with ozone ,the order of reaction will be:
- 2nd
- 1st
- 3rd
- Zero
Equation represent which energy change: Me+^2 + O^-2 > MgO
- Neutralization
- Atomization
- Solution
- Lattice energy
Which of the following is not a state function
- Work
- Volume
- Temperature
- Pressure
Pick the word with correct spelling:
- Prayority
- Prioarity
- Priarity
- Priority
Pick the word with correct spelling:
- Equentense
- Equatance
- Equantence
- Acquaintance
Pick the word with correct spelling:
- Collique
- C0-leageu
- Colleague
- Collegue
What does the word ” Curious ” mean
- Careful
- Cruel
- Keen
- Quest
What does the word” Spill ” mean?
- Deliver
- Coil
- Spread
- Spoil
What does the word “surplus ” mean ?
- A mathematical term
- Salutation
- Within reach
- ln excess
He prefers death _____dishonor:
- To
- Over
- On
- Upon
Abide _____ the traffic laws for smooth and safe flow of traffic:
- On
- By
- To
- With
Daud is better than _____ of the college:
- Any teacher
- Any teachers
- All teachers
- All other teachers
Unless we _____ now, we cannot be on time:
- Do not start
- Start
- Will start
- Are starting
The soup _____ good:
- Tastes
- Taste
- Has taste
- Is tasting
I _____ English for fiver years:
- Study
- Am studying
- Have been studying
- Studies
These carbohydrates are sweetest among all carbohydrates:
- Polysaccharide
- Monosaccharides
- Disacchride
- Oligosaccharides
C-H bonds in lipids are important:
- As cuticle of leaves
- As insulting material
- Providing more energy
- As exoskeleton
Thermal stability of organisms in environment is due to which property of water:
- Hea capacity
- Solvent property
- Ionization
- Protection
Most abundant organic compound in mammalian cells:
- Water
- Proteins
- Carbohydrates
- lipid
_____ are spherical sacs, surrounded by a single membrane and contain hydrolytic enzymes:
- Golgi bodies
- Lysosomes
- Mitochondria
- Chloroplast
Select one which is not the function of smooth endoplasmic reticulum :
- Processing of glycoproteins
- Transport of materials
- Metabolism of lipids
- Transmission of impulses
According to othe fluid mosaic model of cell membrane, which zone is embedded inside:
- Globular
- Filamentous
- Hydrophillic
- Hydrophobic
The folds of inner membrane of mitochondria
- Infolds
- Cristae
- Mesosomes
- Cisternae
Each centriole is composed of _____ of microtubules:
- Eight triplets
- Five triplets
- Seven triplets
- Nine triplets
Tonoplast is the membrane separating:
- Cytoplasm and nucleoplasm
- Vcuole and nucleoplasm
- Vacuole and cytoplasm
- Vacuole and stroma
Pollination is facilitated by:
- Chloroplast
- Amyloplast
- Chromoplast
- Leucoplast
Secondary cell wall in plants is present:
- Outer to primary wall
- Between primary wall and plasma membrane
- Inner to plasma membrane
- In between rimary walls
Mesentric veins drain the blood from:
- Gall bladdder
- Liver
- Stomach
- Large intestine
The smallest bacteria belong to the genus :
- Mycoplasma
- Escherichia
- Streptococcus
- Bacillus
Increase the pathogenicity of bacteria:
- Slime
- Cell wall
- Capsule
- Cell membrane
All viruses are:
- Predators
- Autographs
- Heterotrophs
- Parasites
The complete, mature and infections virus particle is known as
- Venome
- Capsid
- Virion
- Genome
Synthesis of ATP during photosynthesis take place at the region:
- Stroma
- Cisternae
- Matrix
- Thylakoid
Which are the end products of light reaction of photosynthesis?
- ATP and glucose
- ATP and NADPH
- ATP and water
- Glucose and NADP
When lights falls on p_700 which event is likely to occure?
- Accept electrons
- It induces photolysis
- Gains hydrogen
- It is oxidized
In term of enzymes action maximum temperature refers to a temperature which :
- Enzymes start to denature
- Enzymes work best
- Enzymes start to renature
- Enzymes are reactivated
Most enzymes work the best at the following temperature :
- 50C
- 40C
- 30C
- 20C
Non competitive inhibitors react with enzymes at :
- Active site
- Passive site
- Regulatory site
- Allosteric site
Which of the following protein establishes the matrix bone and cartilage :
- Collagen
- Histone
- Keratin
- Elastin
Under activity of parathyroid glands causes a drop in blood of :
- Na+
- Ca+
- Mg+
- K+
Which hormone is chemically a sterol :
- Insulin
- ADH
- Thyroxin
- Cortisone
The junction between two neurons is :
- cleft
- Axon
- Synapse
- Impulse
Sarcoplasmic reticulum of muscles fiber is mainly responsible for :
- Strong and wastes
- Calcium storage
- Lipid metabolism
- Protein synthesis
Which feature is absent in cardiac muscles :
- Contractile sacromere
- Intercalated discs
- Light and dark bands
- Multiple nuclei
Cartilage is more difficult to heal than bone because cartilage :
- Lacks mineral deposits in matrix
- Lacks vascular supply
- Lacks protein in matrix
- Has less number of cells deep down
Pubic symphysis and inter vertebral disc are the example of:
- synovial joints
- cartilaginous joints
- fibrous joints
- gliding joints
The heart chamber from where aorta originates :
- Right atrium
- Left atrium
- Left ventricle
- Right ventricle
Vaccination is an example of:
- Acquired / Artificial active immunity
- Natural passive immunity
- Natural active immunity
- Acquired / Artificial passive immunity
Digestion of which food component start from oral cavity?
- Proteins
- Vitamins
- Carbohydrate
- Fats
The cells which play very important role in developing immunity are:
- Monocytes
- Lymphocytes
- Thrombocytes
- Monocytes
Intrinsic factor is secreted by:
- Duodenum
- Liver
- Pancreas
- Stomach
Pepsinogen is converted into its active form popain by:
- Hydrochloric acid
- Hormonal action
- Dissolving in mucus
- Proteolytic enzyme action
Which may NOT be a mode of action of an antibody?
- Secretion of cytokines
- Precipitating an antigen
- Enhancing phagocytosis
- Neutralizing an antigen
The organs which are similar in function but differ in structure are called?
- Homologous organs
- Divergent organs
- Analogous organs
- Convergent organs
When both the allele of a gone pair are same, the organism is said to be:
- Heterozygous
- Genotype
- Phenotype
- Homozygous
Which of the following trait is transmitted directly from an affected father to only his son:
- X-linked
- Autosomal
- X-Y linked
- Y-linked
The estrogen hormone secretion during the oogenesis is stimulated by:
- Follicle Stimulating Hormone
- Luteinizing Hormone
- Inhibin Hormone
- Testosterone Hormone
Leydig cells are responsible for:
- FSH production
- Sperm production
- Testosterone inhibition
- Testosterone production
The hormone responsible for production of sperm cells and male secondary sexual characteristics is :
- Estrogen
- Testosterone
- Thyroxin
- Progesterone
Endorphins are produced in :
- Brain
- Adrenal gland
- Stomach
- Thymus
Site for production of neurotransmitter :
- Presynaptic neuron
- Postsynaptic neuron
- Synaptic cleft
- Dendrite
Hormone secrete in bulk due to decreased water content of blood is :
- Thyroxin
- Anti-Diuretic Hormone ( ADH)
- Oxytocin
- Glucagon
Which hormone induces labor pains :
- Estrogen
- Oxytocin
- LH
- Progesterone
Na+ are nearly _____ time greater in fluid outside then inside :
- 2
- 10
- 30
- 3
In transverse waves the portion above the mean level is called:
- Wave trough
- Wave length
- Wave front
- Wave crest
With increase in pressure the speed of sound will :
- Increase
- First increase then decrease
- Remain same
- Decrease
In the following figure the wavelength is:
- 1.5 m
- 2 m
- 1 m
- 0.5 m
The expression for centripetal force is :
- Fc= mrω
- Fc= mr^2ω
- Fc= mω^2
- Fc= mrω^2
An electric motor turns at 400 rpm . Its angular velocity in rad/ s will be:
- 20 π / 3
- 30 π / 4
- 40 π / 3
- 30 π / 3
In case of centripetal force the value of instantaneous acceleration is given by:
- ac= vr
- ac= v^2 / r
- ac= v / r
- ac= v^2 r
The relationship between radian and degree is:
- 1° = 57.3 rad
- 1° = π rad
- 1 rad =1°
- 1 rad = 57.3°
The area under force – displacement graph gives:
- Acceleration
- Work
- Power
- Displacement
Power is a dot product of:
- Force and velocity
- Force and Time
- Work and Time
- Force and displacement
An object has 1 J of P.E . What is the work done in terms of height:
- 0.1 J
- 0 J
- 10 J
- 1 J
At what point of the projectile motion vertical component of velocity is zero :
- Just before landing
- Highest point
- Point of projection
- Point of landing
The product of force and time is equal to:
- Change in momentum
- Force
- Velocity
- Angular momentum
Range of projectile on horizontal plane is same for the following pair of angle :
- 15 & 30
- 60 & 20
- 50 & 25
- 75 & 15
The slope of displacement – time graph is equal to :
- Distance
- Velocity
- Acceleration
- Displacement
In perfectly elastic collision:
- Only momentum is conserved
- Only K.E is conserved
- Total energy, K.E & momentum all are conserved
- Only total energy is conserved
Instantaneous velocity along the curved path is :
- Parallel to the radius
- Along the tangent
- Anti parallel to the radius
- Perpendicular to the slope
If the car is slowing down along X axis then acceleration will be along :
- Positive X axis
- Positive y axis
- Negative X axis
- Negative y axis
A 32g radioactive element decay and remain 2g after 60 days. What is the half life of this element:
- 6 days
- 10 days
- 15 days
- 2 days
The time taken for half the number of atoms of radioactive isotopes to disintegrate, is called:
- Total life
- Average life
- Half life
- Mean life
In full wave rectification _____ diodes is used:
- 2
- 1
- 3
- 4
The conversion of AC into DC is called:
- Resolution
- Magnification
- Rectification
- Amplification
A device that convert AC into DC is called:
- Inductor
- Diode
- Transistor
- Capacitor
In fleming right hand rule, second finger represents:
- Magnetic field
- Induced current
- Motion
- Force
The lenz’s law is also statement of law of conservation of:
- Charge
- Energy
- Mass
- Pressure
The weber is unit of measure of:
- Electric current
- Magnetic flux
- Electric flux
- Conductance
The dimension of magnetic field strength is same as that of:
- magnetic force
- magnetic flux
- magnetic induction
- work done
When a charged particle enters the magnetic field parallel, it will:
- Deflect towards south
- Move straight
- Move in circular path
- Deflect towards north
Volt × Ampere is the unit of :
- Volt
- Resistance
- Power
- Current
1 KWH=
- 0.36 × 10^6 J
- 3.6 × 10^5 J
- 0.036 × 10^6 J
- 36 × 10^6 J
The SI unit of capacitance is:
- Volt
- Coulomb
- Farad
- Ampere
In parallel combination of two capacitors, their equivalent capacitance is equal to:
- C1C2 / C1+C2
- 2CC1 / C1+C2
- 1 /C1 +1 /C2
- C1+C2
The first law of thermodynamics is the generalization of the law of conservation of:
- Mass
- Momentum
- Energy
- Charge
In isochoric process:
- Volume is constant
- Pressure is constant
- Temperature is kept constant
- Exchange of heat is zero
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