Solved Past Paper
Sindh MDCAT Past Paper 2018
Practice and review Sindh MDCAT Past Paper 2018 with verified questions, correct answer keys, and detailed solutions.
Total Questions
99 Qs
Duration Limit
210 Min
Negative Mark
0.00
Attempt Count
0
Solved Questions & Explanations
99 questions with verified answers and explanations
1
In which of the following growth phases, the number of bacteria increases the most rapidly ?
Most Repeated GK MCQs from Past Papers
PYQ
a
Lag phase
b
Log phase
c
Stationary phase
d
Death / decline phase
Also appeared in
2
Which of the following is the simplest form of pathogens causing diseases ?
Famous Seas
PYQ
a
Prions
b
Viruses
c
Fungus
d
Amoeba
Also appeared in
3
The category of organisms which are able to make their own food is called:
Food and Agriculture Organization (FAO)
PYQ
a
Heterotrophs
b
Autotrophs
c
Consumers
d
Decomposers
Also appeared in
4
The branch of science dealing with the fossil record is called:
Guinness World Records (General Knowledge Focus)
PYQ
a
Genetics
b
Archeology
c
Paleontology
d
Biochemistry
Also appeared in
5
Which of the following is the manipulation of genetic material for practical purposes ?
Guinness World Records (General Knowledge Focus)
PYQ
a
Grafting
b
Tissue culture
c
Cell culture
d
Genetic engineering
Also appeared in
6
Which part of the cell does glycolysis occur in ?
Guinness World Records (General Knowledge Focus)
PYQ
a
Mitochondria
b
Chloroplast
c
Nucleus
d
Cytoplasm
Also appeared in
7
The technique used for identification of criminals is called:
International Criminal Police Organization (INTERPOL)
PYQ
a
DNA fingerprinting
b
Restriction analysis
c
Polymorphism
d
Gene sequencing
Also appeared in
8
Which of the following bacteria are able to release oxygen into the environment?
United Nations Environment Programme (UNEP)
PYQ
a
Saprotrophic bacteria
b
Parasitic bacteria
c
Cyanobacteria
d
Pathogenic bacteria
Also appeared in
9
Which of the following is NOT part of RNA?
Group of Seven (G7)
PYQ
a
Nitrogenous bases
b
Ribose sugars
c
Deoxyribose sugars
d
Phosphate groups
Also appeared in
10
Referring to sexual reproduction, humans are:
United Nations Human Settlements Programme (UN-Habitat)
PYQ
a
Hermaphrodites
b
Viviparous
c
Oviparous
d
Self-fertilized
Also appeared in
11
Which of the following is NOT the function of cell membranes?
Guinness World Records (General Knowledge Focus)
PYQ
a
Protection of cytoplasm
b
Protein synthesis
c
Cellular communication
d
Cellular transportation
Also appeared in
12
Genetic information in the DNA is encoded as:
Group of Seven (G7)
PYQ
a
Deoxyribose sugars
b
Ribose sugars
c
Phosphate groups
d
Sequence of nitrogenous bases
Also appeared in
13
The chromosomes with equal arms are called:
Guinness World Records (General Knowledge Focus)
PYQ
a
Metacentric
b
Submetacentric
c
Acrocentric
d
Telocentric
Also appeared in
14
The disease arising due to age is:
Famous Seas
PYQ
a
Alzheimer's
b
Hepatitis
c
Cholera
d
Malaria
Also appeared in
15
Which of the following endoparasites of humans replicates within human cells?
United Nations Human Settlements Programme (UN-Habitat)
PYQ
a
Leech
b
Bacteria
c
Fungi
d
Helminths
Also appeared in
16
The disease caused by Protozoal infection is:
Famous Seas
PYQ
a
Rickets
b
Goiter
c
Malaria
d
Beri-Beri
Also appeared in
17
Which of the following are divided by fission?
Guinness World Records (General Knowledge Focus)
PYQ
a
Viroids
b
Bacteria
c
Viruses
d
Fungi
Also appeared in
18
In recombinant DNA technology, the copies of recombinant DNA are increased by:
Multi-Polar World
PYQ
a
Restriction enzyme
b
Ligase
c
Selection of host with rDNA
d
Multiplication of host with rDNA
Also appeared in
19
The disease caused by nutritional deficiency is:
Famous Seas
PYQ
a
Hepatitis
b
Cholera
c
Malaria
d
Beri-Beri
Also appeared in
20
Which of the following basic structural levels of proteins is indicated by an association of two alpha and two beta chains in the hemoglobin molecule?
Basic World Statistics
PYQ
a
Primary structure
b
Secondary structure
c
Tertiary structure
d
Quaternary structure
Also appeared in
21
The branch of science dealing with the classification of life forms is called:
Guinness World Records (General Knowledge Focus)
PYQ
a
Genetics
b
Taxonomy
c
Archeology
d
Paleontology
Also appeared in
22
Which of the following is NOT a part of the immune system?
Central American Integration System (SICA)
PYQ
a
Phagocytes
b
Complement proteins
c
Cytokinesis
d
Atherosclerosis
Also appeared in
23
The system responsible for fighting the pathogens is:
Central American Integration System (SICA)
PYQ
a
Immune system
b
Nervous system
c
Endocrine system
d
Muscular system
Also appeared in
24
Which one of the following organelles is required for aerobic respiration?
Guinness World Records (General Knowledge Focus)
PYQ
a
Nucleus
b
Mitochondria
c
Endoplasmic reticulum
d
Plasmids
Also appeared in
25
Please mark the one Kingdom having the most conspicuous living organisms:
Most Repeated GK MCQs from Past Papers
PYQ
a
Monera
b
Protista
c
Animalia
d
Plantae
Also appeared in
26
Which of the following phyla of Kingdom Animalia does human belong to?
United Nations Human Settlements Programme (UN-Habitat)
PYQ
a
Mollusca
b
Arthropoda
c
Echinodermata
d
Chordata
Also appeared in
27
Carbon dioxide joins the photosynthetic pathway at:
Financial Action Task Force (FATF)
PYQ
a
PSI
b
PSII
c
Light reaction
d
Dark reaction
Also appeared in
28
The enzyme found in saliva responsible for the digestion of carbohydrates is:
Guinness World Records (General Knowledge Focus)
PYQ
a
Lysozyme
b
Amylase
c
Pepsin
d
Trypsinogen
Also appeared in
29
The process by which one molecule of glucose splits up into molecules of pyruvate is called:
Guinness World Records (General Knowledge Focus)
PYQ
a
Glycolysis
b
Oxidative phosphorylation
c
Krebs cycle
d
Calvin cycle
Also appeared in
30
Which of the following is NOT a viral disease?
Famous Seas
PYQ
a
AIDS
b
Malaria
c
Influenza
d
Chicken pox
Also appeared in
31
In which of the following nitrogen compounds, N has the highest oxidation state?
Highest and Lowest Points
PYQ
a
NH2OH
b
N2H4
c
HNO3
d
NH3
Also appeared in
32
Real gases behave ideally at:
Weather, Atmosphere and Temperature
PYQ
a
Low temperature and low pressure
b
Moderate temperature and low pressure
c
High temperature and low pressure
d
High temperature and high pressure
Also appeared in
33
Which alkyl halide has the lowest reactivity for a particular alkyl?
Highest and Lowest Points
PYQ
a
R-Cl
b
R-F
c
R-Br
d
R-I
Also appeared in
34
Which one of the following vitamins is required for normal growth, vision, and keeping the skin healthy?
World Health Organization (WHO)
PYQ
a
Vitamin D
b
Vitamin E
c
Vitamin A
d
Vitamin K
Also appeared in
35
Which one of the following is the pure carbon compound and used as a reducing agent in industries?
Organization of the Petroleum Exporting Countries (OPEC)
PYQ
a
Coal tar
b
Petroleum
c
Coal gas
d
Coke
Also appeared in
36
The alloy Duralumin is composed of Al:
Guinness World Records (General Knowledge Focus)
PYQ
a
95%
b
90%
c
85%
d
80%
Also appeared in
37
106 gram of Na2CO3 per dm³ of solution of Na2CO3 in water, the concentration of the solution will be:
Guinness World Records (General Knowledge Focus)
PYQ
a
1 N
b
0.1 M
c
1 M
d
0.02 M
Also appeared in
38
For the first time in 1911, Henry Moseley used X-rays for the determination of:
Time Zones and Latitude–Longitude
PYQ
a
Atomic number
b
Atomic mass
c
Molecular mass
d
Equivalent mass
Also appeared in
39
Which of the following properties depends upon the amount of water present in the system?
Weather, Atmosphere and Temperature
PYQ
a
Density
b
Gibbs free energy
c
Pressure
d
Temperature
Also appeared in
40
Zwitter ion is formed when proton goes:
Group of Seven (G7)
PYQ
a
Amino to carboxyl group
b
Carboxyl to amino group
c
Carboxyl group only
d
Amino group only
Also appeared in
41
For the following exothermic reaction, decrease in temperature will shift the equilibrium towards: 2NO (g) + O₂ (g) ⇌ 2NO₂ (g):
Weather, Atmosphere and Temperature
PYQ
a
Right
b
Left
c
The point of equilibrium
d
Both directions
Also appeared in
42
How many significant figures are there in 00.4793?
Guinness World Records (General Knowledge Focus)
PYQ
a
3
b
4
c
5
d
6
Also appeared in
43
Which one of the following is NOT a meta-directing group?
Group of Seven (G7)
PYQ
a
COOH
b
SO₃H
c
CHO
d
OH
Also appeared in
44
The rate of a chemical reaction is directly proportional to the product of active masses of the reactants, it is referred to as:
International Atomic Energy Agency (IAEA)
PYQ
a
Law of mass action
b
Law of conservation of energy
c
Law of conservation of mass
d
Active mass law
Also appeared in
45
Which one of the following does NOT give the iodoform test?
Guinness World Records (General Knowledge Focus)
PYQ
a
CH₃OH
b
CH₃CH₂OH
c
CH₃CHO
d
CH₃COCH₃
Also appeared in
46
The boiling point of water is highest than other hydrides because water molecules can form:
Highest and Lowest Points
PYQ
a
4 hydrogen bonds
b
3 hydrogen bonds
c
2 hydrogen bonds
d
1 hydrogen bond
Also appeared in
47
When electricity is passed through water in the presence of an acid, oxygen is produced.
Guinness World Records (General Knowledge Focus)
PYQ
a
Carbon
b
CO
c
CO₂
d
Hydrogen
Also appeared in
48
The reaction 2CO + O₂ → 2CO₂ proceeds slower because of ______ activation energy of CO.
United Nations High Commissioner for Refugees (UNHCR)
PYQ
a
Low
b
High
c
Constant
d
Equilibrium
Also appeared in
49
Lithium and beryllium are unique in such a way that they have higher charge densities, which produce strong polarizing effects due to:
Multi-Polar World
PYQ
a
Nonmetal
b
Solubility
c
Small size
d
Large size
Also appeared in
50
The neutron was discovered by:
World Leaders in News
PYQ
a
Goldstein
b
Rutherford
c
J.J. Thomson
d
Chadwick
Also appeared in
51
The normal pH of blood is:
Guinness World Records (General Knowledge Focus)
PYQ
a
7.75
b
7.35
c
7.25
d
7.05
Also appeared in
52
Which of the following reactions is NOT shown by ketones?
Financial Action Task Force (FATF)
PYQ
a
Reaction with Fehling solution
b
Reaction with HCN
c
Reaction with NaHSO₃
d
Reaction with 2,4-dinitrophenylhydrazine
Also appeared in
53
The melting point of NaCl is very high (801°C). It is reduced to 600°C by the addition of ______ in Down's process.
United Nations High Commissioner for Refugees (UNHCR)
PYQ
a
Calcium chloride
b
Magnesium chloride
c
Aluminum chloride
d
Potassium chloride
Also appeared in
54
The phenomenon in which certain elements emit invisible radiations is called:
World Leaders in News
PYQ
a
Spectroscopy
b
Radioactivity
c
Gravimetry
d
Chromatography
Also appeared in
55
The number of bond(s) between carbon and nitrogen atoms in a nitrile is:
Guinness World Records (General Knowledge Focus)
PYQ
a
One sigma and one pi
b
Two sigma and one pi
c
Only sigma
d
One sigma and two pi
Also appeared in
56
The transparent plastic used to make combs and hairbrushes is called:
Guinness World Records (General Knowledge Focus)
PYQ
a
PVA
b
PVC
c
Bakelite
d
Perspex
Also appeared in
57
In the electrochemical series, elements are arranged in order of their standard electrode potentials. The correct decreasing reactivity order for metals is:
Guinness World Records (General Knowledge Focus)
PYQ
a
Gold, silver, magnesium, aluminum
b
Mercury, calcium, sodium, magnesium
c
Sodium, aluminum, lead, copper
d
Potassium, silver, magnesium, aluminum
Also appeared in
58
Methyl orange is ______ in acidic solutions.
Guinness World Records (General Knowledge Focus)
PYQ
a
Red
b
Yellow
c
Pink
d
Orange
Also appeared in
59
How many chain isomers are shown by C₅H₁₂?
Guinness World Records (General Knowledge Focus)
PYQ
a
2
b
3
c
4
d
5
Also appeared in
60
If in a circuit, 2-ampere current is drawn from the battery in 10 minutes, how much charge will flow through the circuit in this time?
Time Zones and Latitude–Longitude
PYQ
a
1200 Coulombs
b
600 Coulombs
c
500 Coulombs
d
20 Coulombs
Also appeared in
61
If a car collides with a housefly, what will be the magnitude of the force experienced by the housefly?
Time Zones and Latitude–Longitude
PYQ
a
Much greater than the car experienced by the housefly
b
Much less than the car experienced by the housefly
c
Same as the car experienced by the housefly
d
10 times less than the car experienced by the housefly
Also appeared in
62
In the photoelectric effect, a photon of energy "hν" is incident on the metal surface. The energy required to eject the valence electron from the surface of the metal is expressed as:
International Atomic Energy Agency (IAEA)
PYQ
a
Wave nature of the light
b
Compton scattering
c
Melting point of the metal
d
Work function of the metal
Also appeared in
63
Bimetallic thermostat is an example of:
Most Repeated GK MCQs from Past Papers
PYQ
a
Electric field
b
Thermal expansion
c
Heat engine
d
Isobaric process
Also appeared in
64
Let B be the magnetic field and a conductor of length L is moved across this field. Due to this activity, a potential difference appears across the ends of the conductor. This type of potential difference is termed as:
International Federation of Red Cross and Red Crescent Societies (IFRC)
PYQ
a
Self-induction
b
Mutual induction
c
Motional
d
Electrostatic potential
Also appeared in
65
If a dielectric material is placed between two plates of a capacitor, the net capacitance of the capacitor:
Guinness World Records (General Knowledge Focus)
PYQ
a
Increases
b
Decreases
c
Remains constant
d
Zero
Also appeared in
66
In free states, the mass of the nucleus is always:
European Free Trade Association (EFTA)
PYQ
a
Greater than the mass of its constituents
b
Equal to the mass of its constituents
c
Less than the mass of its constituents
d
Far greater than the mass of its constituents
Also appeared in
67
A solar day is the time interval between two successive appearances of the sun overhead. The time that is referred to the rotation of the earth about its axis is called:
Time Zones and Latitude–Longitude
PYQ
a
Universal time
b
Length of the day
c
Time interval
d
Solar day
Also appeared in
68
If the sunlight is incident on the photocell, the number of electrons emitted from the surface of the cell increases with the:
Guinness World Records (General Knowledge Focus)
PYQ
a
Increase of light frequency
b
Increase of light intensity
c
Decrease of light frequency
d
Decrease of light intensity
Also appeared in
69
In electronic circuits, a PN junction diode is used to convert alternating current into direct current. This process is called:
Guinness World Records (General Knowledge Focus)
PYQ
a
Rectification
b
Amplification
c
Doping
d
Integrated circuit
Also appeared in
70
The process in which light bends around an obstacle is called:
Multi-Polar World
PYQ
a
Diffraction of light
b
Interference of light
c
Reflection of light
d
Polarization of light
Also appeared in
71
Let X be a radioactive element having N₀ nuclei. The time required to decay this element to one-half of its initial number N₀ is known as:
Time Zones and Latitude–Longitude
PYQ
a
Law of radioactive decay
b
Decay constant
c
Half-life
d
Decay time
Also appeared in
72
When an electron and its anti-particle positron come close enough to each other, they completely convert into radiation energy in the form of photons. This process is called:
International Atomic Energy Agency (IAEA)
PYQ
a
Photoelectric effect
b
Pair production
c
Annihilation of matter
d
Compton effect
Also appeared in
73
There are different types of waves that exist in this universe. Which of the following waves do NOT need any material medium to travel?
Guinness World Records (General Knowledge Focus)
PYQ
a
Sound waves
b
Waves produced on a string
c
Electromagnetic waves
d
Waves produced on the water surface
Also appeared in
74
A cyclist moving towards the right with an acceleration of 4 m/s². At t=0, he has traveled 5m moving towards the right at 15 m/s. What will be his position at t=2 seconds?
Guinness World Records (General Knowledge Focus)
PYQ
a
36
b
38
c
41
d
43
Also appeared in
75
In pure semiconductor materials, some impurities are added to change the properties of these semiconductors. This process is called:
United Nations Framework Convention on Climate Change (UNFCCC)
PYQ
a
Crystallography
b
Rectification
c
Intrinsic defects
d
Doping
Also appeared in
76
Two forces equal in magnitude but opposite in direction and not acting along the same line constitute a couple. The movement of this couple will be:
Financial Action Task Force (FATF)
PYQ
a
Independent of the location of origin
b
Dependent on the location of the origin
c
Zero
d
Scalar product
Also appeared in
77
In electromagnetic spectrum of radiations, the wavelength spectrum that is visible to humans lies in the range of:
United Nations Human Settlements Programme (UN-Habitat)
PYQ
a
100-400 nm
b
400-700 nm
c
700-1000 nm
d
1000-1500 nm
Also appeared in
78
Equations of kinetics are valid only when the acceleration is:
Time Zones and Latitude–Longitude
PYQ
a
Increasing
b
Decreasing
c
Constant
d
Vary with time
Also appeared in
79
The process of natural decay of some heavy nuclides is because of the __ phenomenon:
Natural Resources
PYQ
a
Emission spectra
b
Nuclear fusion
c
Nuclear fission
d
Radioactivity
Also appeared in
80
If constant temperature conditions are applied to a gas container, then the volume of the mass of that gas tends to increase by:
Weather, Atmosphere and Temperature
PYQ
a
Decreasing the applied pressure
b
Increasing the applied pressure
c
Increasing applied pressure with double force
d
Increasing the weight
Also appeared in
81
The atomic number Z of an atom represents the:
International Atomic Energy Agency (IAEA)
PYQ
a
Number of protons
b
Number of electrons and protons
c
Number of neutrons
d
Sum of protons and neutrons
Also appeared in
82
If constant current is flowing through a coil, then flux through that coil will become constant. In such types of arrangements, the electromotive force (emf) induced in the coil will be:
Financial Action Task Force (FATF)
PYQ
a
Self-Inductance
b
Zero
c
Mutual-Inductance
d
Back emf
Also appeared in
83
In simple harmonic motion, a particle is oscillating in such a way that its total energy remains conserved. When this particle reaches its two extreme positions, its potential energy at extreme positions becomes:
International Atomic Energy Agency (IAEA)
PYQ
a
Zero
b
Minimum
c
Maximum
d
Greater than its kinetic energy
Also appeared in
84
If we increase the area of a cross-section of a conductor having a length , the resistance of that conductor will be:
Area, Population and Official Languages
PYQ
a
Zero
b
Constant
c
Increasing
d
Decreasing
Also appeared in
85
The efficiency of the Carnot engine working between temperatures 177°C and 77°C will be:
Weather, Atmosphere and Temperature
PYQ
a
22.22%
b
23.23%
c
25.25%
d
30.30%
Also appeared in
86
Which process is shown in the graph between pressure and volume?
Guinness World Records (General Knowledge Focus)
PYQ
a
Adiabatic
b
Isobaric
c
Isochoric
d
Isothermal
Also appeared in
87
Which of the following phenomena represents the wave nature of light?
Guinness World Records (General Knowledge Focus)
PYQ
a
Photoelectric effect
b
Compton scattering
c
Interference of light
d
Pair production
Also appeared in
88
Law of heat exchange is used to determine:
United Nations Framework Convention on Climate Change (UNFCCC)
PYQ
a
Coefficient of linear expansion
b
Coefficient of volume expansion
c
Ideal gas constant
d
Specific heat of substance
Also appeared in
89
During radioactive decay of a nucleus , beta emission takes place along with the daughter nucleus. Because of this beta particle emission, the mass number of the parent nucleus:
Guinness World Records (General Knowledge Focus)
PYQ
a
Remains constant
b
Decreases by 1
c
Increases by 1
d
Decreases by 2
Also appeared in
90
Identify the word or phrase that needs to be changed for the sentence to be correct. It's too late to go for a walk now; besides, it's beginning to rain.
Changed Names of Countries and Cities
PYQ
a
It's
b
Besides
c
Beginning
d
No error
Also appeared in
91
Identify the word or phrase that needs to be changed for the sentence to be correct. The guests broke a dozen glasses at the party.
Changed Names of Countries and Cities
PYQ
a
The guests
b
Broke
c
Glass
d
No error
Also appeared in
92
Complete the sentence by choosing the most appropriate option: He would like ____ have a job in the same office as his brother.
Most Repeated GK MCQs from Past Papers
PYQ
a
To
b
Too
c
Of
d
Get
Also appeared in
93
The road is wet. It must ____ raining.
Guinness World Records (General Knowledge Focus)
PYQ
a
Had
b
Have
c
Has
d
Have been
Also appeared in
94
Choose the word most similar in meaning to the capitalized one: SHABBY:
Most Repeated GK MCQs from Past Papers
PYQ
a
Untidy
b
Organized
c
Reluctant
d
Sensible
Also appeared in
95
Choose the word most similar in meaning to the capitalized one: FORBID:
Most Repeated GK MCQs from Past Papers
PYQ
a
Prohibit
b
Chide
c
Permit
d
Constraint
Also appeared in
96
Television is typical of many new scientific words, which are deliberately invented from old Greek and Latin words. In this case, the prefix "tele" is Greek and means "far" (as in telephone, telegram), while the root "vision" is derived from the Latin verb meaning "to see." The word "Television" is invented from:
United Nations Educational, Scientific and Cultural Organization (UNESCO)
PYQ
a
English and Spanish
b
French and Arabic
c
Dutch and German
d
Greek and Latin
Also appeared in
97
Which of the following gives the meaning of the prefix "tele"?
Guinness World Records (General Knowledge Focus)
PYQ
a
Far
b
Newer
c
Close
d
Away
Also appeared in
98
Choose the lettered word or phrase that is most nearly opposite in meaning to the word in capital letters: SUPREMACY:
Most Repeated GK MCQs from Past Papers
PYQ
a
Excellent
b
Sovereignty
c
Inferiority
d
Influence
Also appeared in
99
Choose the lettered word or phrase that is most nearly opposite in meaning to the word in capital letters: PATRIOTISM:
Most Repeated GK MCQs from Past Papers
PYQ
a
Nationalism
b
Socialism
c
Obsession
d
Disloya
Also appeared in
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Topic Weightage
Guinness World Records (General Knowledge Focus)
31.3%
Most Repeated GK MCQs from Past Papers
8.1%
Time Zones and Latitude–Longitude
6.1%
Famous Seas
5.1%
Weather, Atmosphere and Temperature
5.1%
International Atomic Energy Agency (IAEA)
5.1%
Group of Seven (G7)
4%
United Nations Human Settlements Programme (UN-Habitat)
4%
Financial Action Task Force (FATF)
4%
Multi-Polar World
3%
Highest and Lowest Points
3%
Central American Integration System (SICA)
2%
United Nations High Commissioner for Refugees (UNHCR)
2%
World Leaders in News
2%
United Nations Framework Convention on Climate Change (UNFCCC)
2%
Changed Names of Countries and Cities
2%
Food and Agriculture Organization (FAO)
1%
International Criminal Police Organization (INTERPOL)
1%
United Nations Environment Programme (UNEP)
1%
Basic World Statistics
1%
World Health Organization (WHO)
1%
Organization of the Petroleum Exporting Countries (OPEC)
1%
International Federation of Red Cross and Red Crescent Societies (IFRC)
1%
European Free Trade Association (EFTA)
1%
Natural Resources
1%
Area, Population and Official Languages
1%
United Nations Educational, Scientific and Cultural Organization (UNESCO)
1%