MDCAT 2021 Past Paper 1

Created by Ali Durrani

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1 / 201

Phenol reacts with calcium carbonate and evolve ________?

PMC Practice 1
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) H2 gas

B) CO2 gas

C) O2

D) None of these

2 / 201

Ohm’s Law is not applicable when the temperature is:

PMC Practice 1
Physics
Current Electricity
Ohms Law
Elimination Tool:

A) Changing

B) Constant

C) All of These

D) None of these

3 / 201

Drawing a graph between concentration change with time gives a:

PMC Practice 1
Chemistry
Elimination Tool:

A) Straight line

B) Parabola

C) Curve

D) Scattered graph

4 / 201

Friedrich prepared UREA from:

PMC Practice 1
Chemistry
Elimination Tool:

A) Amino acids

B) Ammonium carbonate

C) Ammonium cyanate

D) Xanthin

5 / 201

Which of following is an example of electrophilic attack on alcohols?

PMC Practice 1
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) C2H5OH + CH3COOH → CH3COOC2H5 + H2O

B) 2C2H5OH+2Na→ 2CH5ONa+H2

C) C2H5OH + HCl → C2H5Cl + H2O

D) Both A and B

6 / 201

Different kinds of atoms of the same element are called isotope having different __________but same ___________ properties.

PMC Practice 1
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) Physical, atomic

B) Physical, chemical

C) Chemical, physical

D) Chemical, atomic

7 / 201

F-block elements are called?

PMC Practice 1
Chemistry
d and f Block Elements
Elimination Tool:

A) Inner transition

B) Outer transition

C) Both

D) None

8 / 201

During the course of an SN1 reaction, the intermediate species formed is:

PMC Practice 1
Chemistry
Elimination Tool:

A) A carbocation

B) A free radical

C) A carbanion

D) An intermediate complex

9 / 201

The shielding effect is also called?

PMC Practice 1
Chemistry
Atomic Structure
Elimination Tool:

A) Zee effect

B) Screening effect

C) Negative effect

D) Reducing effect

10 / 201

Which of the following family is linked with plant ashes?

PMC Practice 1
Chemistry
Chemistry of Life
Elimination Tool:

A) Nitrogen family

B) Alkali metals

C) Rare earth metals

D) Oxygen family

11 / 201

Urease is present in:

PMC Practice 1
Chemistry
Chemistry of Life
Elimination Tool:

A) Yeast

B) Grapes

C) Soya sauce

D) Soya bean

12 / 201

Which of the following is most soluble in water?

PMC Practice 1
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) Ethanoic acid

B) Pentanoic acid

C) Hexanoic acid

D) Butanoic acid

13 / 201

Which of the following is not a derivative of benzene?

PMC Practice 1
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) Pyrrole

B) Furan

C) Thiophene

D) All

14 / 201

Which of the following is a poor ‘leaving’ group in nucleophilic substitution reactions?

PMC Practice 1
Chemistry
Alkyl Halides and Amines
Elimination Tool:

A) Cl-

B) Br-

C) I-

D) OH-

15 / 201

A very small value of Kc depicts:

PMC Practice 1
Chemistry
Chemical Equilibrium
Elimination Tool:

A) No Reaction

B) Backward Reaction

C) Little Forward Reaction

D) Complete Reaction

16 / 201

The molecules of ________ have dipole-dipole interaction.

PMC Practice 1
Chemistry
Chemical Bonding
Elimination Tool:

A) Methane

B) Neon

C) Ammonia

D) Ethane-ethyl alcohol

17 / 201

Carboxylic acids do not give the characteristics reaction of >C=O group because of:

PMC Practice 1
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) Polar nature

B) Resonance

C) Symmetrical structure

D) Attached alkyl group

18 / 201

What are the products of destructive distillation of coal?

PMC Practice 1
Chemistry
Hydrocarbons
Elimination Tool:

A) Coal tar

B) Coke

C) Coal gas

D) All of above

19 / 201

If a molecule contains 4 electron pairs, The shape of molecule will be:

PMC Practice 1
Chemistry
Chemical Bonding
Elimination Tool:

A) Tetrahedral

B) Trigonal

C) Linear

D) None of these

20 / 201

Lattice points are also called?

PMC Practice 1
Chemistry
Chemical Bonding
Elimination Tool:

A) Space lattice

B) Crystal lattice

C) Lattice sites

D) Lattice location

21 / 201

By increasing which of the following factor polarizability increases?

PMC Practice 1
Chemistry
Periodicity in Elements
Elimination Tool:

A) Atomic radius

B) Ionization energy

C) Ionic radius

D) Hydration energy

22 / 201

18g of water contains ____ atoms of hydrogen

PMC Practice 1
Chemistry
Stoichiometry
Elimination Tool:

A) 6.022 x 1023

B) 3 x 6.022 x 1023

C) 2 x 6.022 x 1023

D) 4 x 6. 22 x 1023

23 / 201

Which of the following method is used to prepare Ethylene glycol from ethene?

PMC Practice 1
Chemistry
Hydrocarbons
Elimination Tool:

A) Dehydration

B) Hydroxylation

C) Hydration

D) Luca's test

24 / 201

Which of the following is produced by heating of bones?

PMC Practice 1
Chemistry
Elimination Tool:

A) Gelatine

B) Cheese

C) Albumin

D) Gelly

25 / 201

At constant volume the heat supplied is equal to:

PMC Practice 1
Chemistry
Elimination Tool:

A) Work done

B) Internal energy change

C) Enthalpy

D) Entropy

26 / 201

Which of the following condition is constant in Bomb calorimeter?

PMC Practice 1
Chemistry
Thermochemistry
Elimination Tool:

A) Pressure

B) Volume

C) Temperature

D) All of these

27 / 201

The e/m values for the positive rays depends on ________enclosed in a discharge tube.

PMC Practice 1
Chemistry
Elimination Tool:

A) Nature of gas

B) Properties of gas

C) Composition of gas

D) All of these

28 / 201

Which ion will have a maximum value of the heat of hydration?

PMC Practice 1
Chemistry
Thermochemistry
Elimination Tool:

A) Al+3

B) Cs+

C) Ba+

D) Mg+2

29 / 201

The ionization energy increases from left to right in a period due to increase in?

PMC Practice 1
Chemistry
Periodicity in Elements
Elimination Tool:

A) Nuclear charge

B) Number of electrons

C) Atomic number

D) All of these

30 / 201

Heat exchanged between the system and surrounding at constant volume is shown by the relation?

PMC Practice 1
Chemistry
Heat and Thermodynamics
Elimination Tool:

A) ΔH= qv+ w

B) ΔE=(q)v

C) ΔH=(q)v

D) ΔE=(q)v + PV

31 / 201

Which of the following compete with each other?

PMC Practice 1
Chemistry
Alkyl Halides and Amines
Elimination Tool:

A) E1, E2

B) E1, S2

C) E2, S1

D) E2, S2

32 / 201

Casein is used in manufacturing of _________.

PMC Practice 1
Chemistry
Elimination Tool:

A) Buttons & buckles

B) Tanning of leather

C) Gelatin

D) Bakery goods

33 / 201

How do the ‘p’ orbitals px, py, pz differ from each other?

PMC Practice 1
Chemistry
Chemical Bonding
Elimination Tool:

A) Size

B) Shape

C) Orientation

D) Capacity

34 / 201

D block elements are also called as ____ ?

PMC Practice 1
Chemistry
d and f Block Elements
Elimination Tool:

A) Rare earth elements

B) Outer transition elements

C) Inner transition elements

D) Typical transition elements

35 / 201

According to Avogadro’s law, .899g of 1dm3 H2 and 1.4384g of 1dm3 O2 have _____________number of molecules.

PMC Practice 1
Chemistry
Stoichiometry
Elimination Tool:

A) Same

B) Different

C) H2 has more

D) 02 has more

36 / 201

Covalent character of hydrides decrease ________?

PMC Practice 1
Chemistry
Periodicity in Elements
Elimination Tool:

A) Down the Group

B) Along period

C) Along d- block

D) All of these

37 / 201

Organic compounds in which tetravalency of carbon atom is satisfied are called as ____ ?

PMC Practice 1
Chemistry
Hydrocarbons
Elimination Tool:

A) Saturated

B) Unsaturated

C) Alkenes

D) Alkynes

38 / 201

While calculating vapor pressure of a liquid in manometer, the column of mercury facing the vapors of a liquid is _____ due to pressure on surface of liquid in flask.

PMC Practice 1
Chemistry
Experimental Techniques in Chemistry
Elimination Tool:

A) Compressed

B) Depressed

C) Rises

D) Lowers

39 / 201

The number of reacting molecules which change their concentration in a chemical change is called:

PMC Practice 1
Chemistry
Reaction Kinetics
Elimination Tool:

A) Extent of a Reaction

B) Order of a Reaction

C) Specific rate of a reaction

D) Enthalpy of reaction

40 / 201

With different number of moles of reactants and products, the volume of system?

PMC Practice 1
Chemistry
Heat and Thermodynamics
Elimination Tool:

A) Remains unchanged

B) Changes

C) Decrease

D) Increase

41 / 201

Formation of carbon dioxide hinders in calculating the heat of formation of:

PMC Practice 1
Chemistry
Thermochemistry
Elimination Tool:

A) CCl4

B) O3

C) CO

D) C

42 / 201

How many chain isomers of Pentane is possible?

PMC Practice 1
Chemistry
Hydrocarbons
Elimination Tool:

A) Two

B) Four

C) Three

D) Five

43 / 201

Choose the correct spelling of the word:

PMC Practice 1
English
Grammar and Punctuation
Elimination Tool:

A) Something

B) Somthing

C) Sumthing

D) Sumthin

44 / 201

Select the option which fits appropriately in the blank:

It will _____ me a lot of money.

PMC Practice 1
English
Fill in the blank
Elimination Tool:

A) Costs

B) Cost

C) Costed

D) Is costing

45 / 201

Select the option which fits appropriately in the blank:

A really sophisticated person would never be _______ enough, to think that he is always right.

PMC Practice 1
English
Fill in the blank
Elimination Tool:

A) Reverent

B) Naive

C) Articulate

D) Humble

46 / 201

Select the option which fits appropriately in the blank:

I am in London this Summer, I ___________ English.

PMC Practice 1
English
Fill in the blank
Elimination Tool:

A) Learn

B) Learns

C) Am learning

D) Learning

47 / 201

Select the option which fits appropriately in the blank:

The gardner will have _________ the flowers.

PMC Practice 1
English
Fill in the blank
Elimination Tool:

A) Plucked

B) Pluck

C) Plucks

D) None of these options are correct

48 / 201

Select the option which fits appropriately in the blank:

My father often ______ here.

PMC Practice 1
English
Fill in the blank
Elimination Tool:

A) Come

B) Came

C) Comes

D) Coming

49 / 201

Select the option which fits appropriately in the blank:

The robber broke into the house and _________ (tie) the lone occupant with ropes.

PMC Practice 1
English
Fill in the blank
Elimination Tool:

A) Tied

B) Ties

C) Tie

D) Tying

50 / 201

Select the option which fits appropriately in the blank:

Although he studied hard, he couldn’t succeed __________ getting a high score in his test.

PMC Practice 1
English
Fill in the blank
Elimination Tool:

A) In

B) On

C) At

D) To

51 / 201

Choose the correct sentence:

PMC Practice 1
English
Tenses and Sentence Structure
Elimination Tool:

A) I don't like this one bit said Jamil.

B) "I don't like this one bit," said Jamil.

C) "I don't like this one bit?" said jamil.

D) I dont like this one bit, said Jamil.

52 / 201

Choose the correct sentence:

PMC Practice 1
English
Tenses and Sentence Structure
Elimination Tool:

A) However, it didn't take long for others to jump on board.

B) However it didn't take long for others to jump on board.

C) However, it didn't take long for others to jump on board?

D) However. It didn't take long for others to jump on board.

53 / 201

Select the option which fits appropriately in the blank:

Everyone __________ done his or her homework.

PMC Practice 1
English
Fill in the blank
Elimination Tool:

A) Has

B) Have

C) Had

D) Non

54 / 201

Select the option which fits appropriately in the blank:

_____ icon like this is called _______ hourglass.

PMC Practice 1
English
Fill in the blank
Elimination Tool:

A) Has

B) Have

C) Had

D) Non

55 / 201

Select the nearest correct meaning of the given word:

Bewildered

PMC Practice 1
English
Key Vocabulary
Elimination Tool:

A) Confused

B) Impressed

C) Stunned

D) Intrigued

56 / 201

Find errors in the following sentence:

PMC Practice 1
English
Identify errors in sentence
Elimination Tool:

A) We have

B) Been knowing

C) Each other

D) Since we were children.

57 / 201

Select the option which fits appropriately in the blank:

Annie and her brothers __________ at school.

PMC Practice 1
English
Fill in the blank
Elimination Tool:

A) Is

B) Are

C) Are being

D) Have

58 / 201

Select the option which fits appropriately in the blank:

Dan __________ a lot of friends.

PMC Practice 1
English
Fill in the blank
Elimination Tool:

A) Have

B) Has

C) Is having

D) Having

59 / 201

Select the option which fits appropriately in the blank:

We shall _________ there for a week.

PMC Practice 1
English
Fill in the blank
Elimination Tool:

A) Be going

B) Has been gone

C) Has going

D) Been going

60 / 201

Find an error in the following sentence:

Everyone who was injured in the accident were taken to the hospital.

PMC Practice 1
English
Identify errors in sentence
Elimination Tool:

A) Everyone who was injured

B) In the accident

C) Were taken

D) To the hospital

61 / 201

Find errors in the following sentence:

PMC Practice 1
English
Identify errors in sentence
Elimination Tool:

A) The captain, along with his team

B) Are practising very hard

C) For the

D) Forthcoming matches.

62 / 201

Select the option which correctly represents the following word:

Who is

PMC Practice 1
English
Key Vocabulary
Elimination Tool:

A) Whos

B) Whose

C) Who's

D) Whos'

63 / 201

Select the option which fits appropriately in the blank:

The dog sprang ______________ him.

PMC Practice 1
English
Fill in the blank
Elimination Tool:

A) On

B) Upon

C) In

D) Over

64 / 201

What is the common name of the compound CH3(CH2)2CH2Cl?

PMC Practice 1
Chemistry
Alkyl Halides and Amines
Elimination Tool:

A) Chloropentane

B) n-Chloropentane

C) n-pentyl chloride

E) n-butanyl chloride

65 / 201

Which of these is involved in coordinated movements of the body?

PMC Practice 1
Biology
Coordination and Control
Central Nervous System
Elimination Tool:

A) Cerebellum

B) Cerebrum

C) Medulla

D) Pons

66 / 201

Salamander belongs to which of the following class?

PMC Practice 1
Biology
Kingdom Animalia
Phylums – porifera to chordata
Elimination Tool:

A) Pisces

B) Aves

C) Reptiles

D) Amphibians

67 / 201

The term ‘cell’ was given by

PMC Practice 1
Biology
Cell Structure and Function
Introduction to Cell and it’s theory
Elimination Tool:

A) Leeuwenhoek

B) Robert Hooke

C) Flemming

D) Robert Brown

68 / 201

Cholesterol is:

PMC Practice 1
Biology
Biological Molecules
Lipids
Elimination Tool:

A) Animal sterol

B) C27H46O

C) 5 methyl groups

D) All of these

69 / 201

When vasopressin is not secreted, the condition that occurs is called?

PMC Practice 1
Biology
Coordination and Control
Endocrine System and its Hormones
Elimination Tool:

A) Acromegaly

B) Diabetes mellitus

C) Dwarfism

D) Diabetes insipidus

70 / 201

Which cells secrete flexible, elastic, non-living matrix collagen that surrounds the chondrocytes?

PMC Practice 1
Biology
Support and Movement
Support and Movement in Animals
Elimination Tool:

A) Osteocytes

B) Osteoclasts

C) Chondrocytes

D) Osteoblasts

71 / 201

The upward movement of sap by the xylem is:

PMC Practice 1
Biology
Transport
Elimination Tool:

A) Ascent of sap

B) Plasmolysis

C) Deplasmolysis

D) Guttation

72 / 201

The voice box leads to the trachea which is also called

PMC Practice 1
Biology
Gaseous Exchange
Respiratory System of Man
Elimination Tool:

A) Bronchi

B) Bronchioles

C) Windpipe

D) Alveolar duct

73 / 201

The part of chloroplast where CO2 is fixed to manufacture sugar is?

PMC Practice 1
Biology
Bioenergetics
Light Independent Mechanism of Photosynthesis
Elimination Tool:

A) Stroma

B) Grana

C) Thylakoid

D) Outer membrane

74 / 201

How are carboxylic acids formed from alcohol?

PMC Practice 1
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) Hydrolysis

B) Reduction

C) Oxidation

D) Protonation

75 / 201

Coelom that develops from the archenteron as outpouching is?

PMC Practice 1
Biology
Kingdom Animalia
Classification according to Coelem
Elimination Tool:

A) Pseudocoelom

B) Schizocoelom

C) Enterocoelom

D) Both a and b

76 / 201

Which portion of the brain is primarily responsible for transmitting the information to other parts of the nervous system?

PMC Practice 1
Biology
Coordination and Control
Central Nervous System
Elimination Tool:

A) White matter

B) Grey matter

C) Medulla

D) All A, B and C

77 / 201

The wings of a bird and the wings of a beetle are considered?

PMC Practice 1
Biology
Evolution
Elimination Tool:

A) Taxonomic

B) Phylogenetic

C) Homologous

D) Analogous

78 / 201

Aquatic arthropods belonging to this class breathe through gills.

PMC Practice 1
Biology
Kingdom Animalia
Phylums – porifera to chordata
Elimination Tool:

A) Insects

B) Arachnids

C) Crustaceans

D) Arachnids and crustaceans

79 / 201

Which of the following is the name of the modified endoplasmic reticulum foundin muscle cells?

PMC Practice 1
Biology
Support and Movement
Ultrastructure & Mechanism of Skeletal Muscle Contraction
Elimination Tool:

A) T-tubule

B) Sarcomere

C) Myoplasmic reticulum

D) Sarcoplasmic reticulum

80 / 201

Inactive enzyme precursors such as pepsinogen for pepsin are called as:

PMC Practice 1
Biology
Enzymes
Elimination Tool:

A) Holoenzymes

B) Actinases

C) Zymogens

D) Mucopolysaccharides

81 / 201

Which type of bonds are broken during cracking?

PMC Practice 1
Chemistry
Hydrocarbons
Elimination Tool:

A) C- C

B) C-H

C) Both C-C and C-H

D) C-0

82 / 201

How many monosaccharide molecules do oligosaccharides yield upon hydrolysis?

PMC Practice 1
Biology
Biological Molecules
Carbohydrates
Elimination Tool:

A) 2

B) 5

C) 10

D) All of these

83 / 201

Which one of the following is present outside the plasma membrane but inside the cell wall?

PMC Practice 1
Biology
Cell Structure and Function
Plasma Membrane
Elimination Tool:

A) Sphaerosome

B) Peroxisome

C) Lomasome

D) Golgi body

84 / 201

When resources gets scarce, the population growth?

PMC Practice 1
Biology
Man and His Environment
Elimination Tool:

A) Becomes fast

B) Slows down

C) Remains same

D) None of these

85 / 201

Interconversion of carbohydrates, proteins, and lipids in living cells are an example of?

PMC Practice 1
Biology
Nutrition
Digestion and Absorption
Elimination Tool:

A) Coordinated catabolic activities

B) Coordinated anabolic activities

C) Both a and b

D) None of these

86 / 201

Nutrition to egg in ovary is provided by which of the following?

PMC Practice 1
Biology
Growth and Development
Embryonic Development
Elimination Tool:

A) Germ cells

B) Milk cells

C) Follicle cells

D) All of these

87 / 201

What is the function of the lysozyme enzyme released by bacteriophages?

PMC Practice 1
Biology
Bio-diversity | Variety of Life
Elimination Tool:

A) Injecting DNA

B) Replication

C) Dissolve bacterial cell wall

D) All of these

88 / 201

In some cases, the blastomere can produce complete embryo so, the cleavage will be:

PMC Practice 1
Biology
Growth and Development
Embryonic Development
Elimination Tool:

A) Spiral and determinate

B) Spiral and indeterminate

C) Radial and determinate

D) Radial and indeterminate

89 / 201

According to lvanovski, what are soluble living germs?

PMC Practice 1
Biology
Bio-diversity | Variety of Life
Elimination Tool:

A) Bacteria

B) Viruses

C) Fungi

D) Both A and B

90 / 201

Which of the following wavelength is absorbed maximum for photosynthesis?

PMC Practice 1
Biology
Bioenergetics
Photosynthetic pigments
Elimination Tool:

A) 660 nm

B) 680 nm

C) 440 nm

D) 700 nm

91 / 201

These are largest animal viruses:

PMC Practice 1
Biology
Bio-diversity | Variety of Life
Elimination Tool:

A) HIV

B) Poxviruses

C) Covid-19

D) HBV

92 / 201

Which alkyl halide gives SN2 reactions?

PMC Practice 1
Chemistry
Alkyl Halides and Amines
Elimination Tool:

A) Secondary

B) Primary

C) Tertiary

D) All of these

93 / 201

Nitrogenous bases such as choline and serine are a significant part of which of the following?

PMC Practice 1
Biology
Biological Molecules
Elimination Tool:

A) Sphingolipids

B) Phospholipids

C) Phosphodiester

D) None of these

94 / 201

Which of the following sections of a sarcomere does not shorten during contraction?

PMC Practice 1
Biology
Support and Movement
Ultrastructure & Mechanism of Skeletal Muscle Contraction
Elimination Tool:

A) I band

B) H zone

C) A band

D) None of these

95 / 201

Current in electrolysis is carried through?

PMC Practice 1
Chemistry
Electrochemistry
Elimination Tool:

A) Free electrons

B) Positive Ions

C) Negative Ions

D) Both B and C

96 / 201

The equilibrium constant is always written as a ratio of:

PMC Practice 1
Chemistry
Elimination Tool:

A) Reactants over products

B) Products over reactants

C) Product times Reactants

D) None of these

97 / 201

The relative atomic mass of copper is?

PMC Practice 1
Chemistry
Stoichiometry
Elimination Tool:

A) 63.345amu

B) 63.455amu

C) 63.55amu

D) 63.456amu

98 / 201

If both the alleles are same with respect to genes, then they are called?

PMC Practice 1
Biology
Variation and Genetics
Mendelian Inheritance
Elimination Tool:

A) Heterozygous

B) Unicellular

C) Homozygous

D) None of these

99 / 201

The carbonyl compound which is attached with at least one H atom at one side is called as?

PMC Practice 1
Chemistry
Elimination Tool:

A) Ketones

B) Aldehydes

C) Ethers

D) Alkyl halides

100 / 201

The nervous system of Arthropoda resembles which of the following phylums?

PMC Practice 1
Biology
Coordination and Control
Coordination in Animals
Elimination Tool:

A) Annelida

B) Mollusca

C) Plathyelminthes

D) Coelecterata

101 / 201

In asexual reproduction, offsprings are genetically?

PMC Practice 1
Biology
Reproduction
Reproduction in Animals
Elimination Tool:

A) Identical to the parents

B) Identical if mutations do not occur

C) Non identical to the parents

D) Both a and b

102 / 201

Enzymes work by which of the following?

PMC Practice 1
Biology
Enzymes
Elimination Tool:

A) Increasing the activation energy

B) Reducing the activation energy

C) Making exergonic reactions endergonic

D) Making endergonic reactions exergonic

103 / 201

Which of the following statement was not explained by Darwin’s theory?

PMC Practice 1
Biology
Evolution
Elimination Tool:

A) The significance of minute variations

B) Presence of vestigeal or useless organs

C) The presence of over specialized organs

D) All of the above

104 / 201

Energy for the endothermic reaction is given a ____ value?

PMC Practice 1
Chemistry
Thermochemistry
Elimination Tool:

A) Positive

B) Negative

C) Zero

D) Neither positive nor negative

105 / 201

Which type of bonds are never formed when a substrate fits into the active site of an enzyme?

PMC Practice 1
Biology
Enzymes
Elimination Tool:

A) Hydrogen bonds

B) Ionic interactions

C) Hydrophobic interactions

D) Covalent linkages

106 / 201

If a microscope has a 10× objective lens and 10× ocular lens, it would magnify the object by:

PMC Practice 1
Biology
Cell Structure and Function
Techniques used in Cell Biology
Elimination Tool:

A) 10x

B) 20x

C) 50x

D) 100x

107 / 201

In 1959, Koshland proposed which of the following?

PMC Practice 1
Biology
Enzymes
Elimination Tool:

A) Unit membrane model

B) Fluid mosaic model

C) Reflective index model

D) Induced fit model

108 / 201

Human embryo remains enclosed in:

PMC Practice 1
Biology
Growth and Development
Embryonic Development
Elimination Tool:

A) Amniotic sac

B) Placenta

C) Chorion

D) Allantois

109 / 201

What are the subunits of capsids?

PMC Practice 1
Biology
Bio-diversity | Variety of Life
Elimination Tool:

A) Capsomeres

B) Flagella

C) Hyphae

D) September

110 / 201

Extremely long molecule of DNA that is tightly folded to fit inside the cell component is called?

PMC Practice 1
Biology
Chromosomes and DNA
Types & Composition of Chromosomes
Elimination Tool:

A) Nucleus

B) Chromosome

C) Chromatin body

D) Chromatid

111 / 201

The smallest part of the crystal lattice has all the properties of the entire crystal, this is called:

PMC Practice 1
Chemistry
Chemical Bonding
Elimination Tool:

A) Unit

B) Unit cell

C) Unit crystal

D) All of these options are correct

112 / 201

Melting and boiling point of transition elements is higher due to?

PMC Practice 1
Chemistry
Chemical Bonding
Elimination Tool:

A) Higher binding energy

B) Strong metallic bonding

C) Hardness

D) All of these

113 / 201

When two or more clearly different phenotypes exists in same population of species, the phenomenon is called?

PMC Practice 1
Biology
Evolution
Elimination Tool:

A) Replication

B) Polymorphism

C) Gene linkage

D) Gene expression

114 / 201

Vertebrates belong to phylum chordata because:

PMC Practice 1
Biology
Kingdom Animalia
Phylums – porifera to chordata
Elimination Tool:

A) They have a vertebral column

B) The brain is enclosed by the skull

C) The embryos have gills

D) The body develops from three germinal layers

115 / 201

How much net gain of G3P is obtained after one calvin cycle?

PMC Practice 1
Biology
Bioenergetics
Light Independent Mechanism of Photosynthesis
Elimination Tool:

A) 3

B) 6

C) 2

D) 1

116 / 201

Two populations of the same species over time grow distant from one another. At what point will these two populations be considered different species?

PMC Practice 1
Biology
Evolution
Elimination Tool:

A) When the populations begin to eat different foods

B) When there is a physical barrier, such as a river, between the two population

C) When the two populations have not been in contact with one another for two hundred years

D) When they are no longer able to interbreed

117 / 201

What is the viral envelope composed of?

PMC Practice 1
Biology
Bio-diversity | Variety of Life
Elimination Tool:

A) Proteins

B) Glycoproteins

C) Lipids and proteins

D) All of the above

118 / 201

The substance that is attached to the enzyme at specific place and converted into product is called as?

PMC Practice 1
Chemistry
Reaction Kinetics
Elimination Tool:

A) Co-factor

B) Iso-zyme

C) Active site

D) Substrate

119 / 201

The difference in the E.N values of the bonded atoms b/w two atoms is an index to of covalent bond:

PMC Practice 1
Chemistry
Elimination Tool:

A) Polar nature

B) Non-polar nature

C) Strength

D) Nature

120 / 201

The scrotum is responsiblefor·which of the following in the male reproductive system?

PMC Practice 1
Biology
Reproduction
Reproduction in Males
Elimination Tool:

A) Synthesis of sperm

B) Lubrication

C) Nourishment of sperm

D) Temperature regulation

121 / 201

What was the correct classification according to Linnaeus?

PMC Practice 1
Biology
Bio-diversity | Variety of Life
Elimination Tool:

A) Similar genera in one family

B) Similar species in one genus

C) Similar families in one order

D) All of above

122 / 201

Breathing is considered as a:

PMC Practice 1
Biology
Gaseous Exchange
Introduction to Gaseous Exchange
Elimination Tool:

A

A) Chemical process

B) Biochemical process

C) Mechanical process

D) Both A and B

123 / 201

Which of these is a eucoelomate?

PMC Practice 1
Biology
Kingdom Animalia
Classification according to Coelem
Elimination Tool:

A) Earthworm

B) Jelly fish

C) Sycon

D) Planaria

124 / 201

Gibberellins may be substituted for which color of light, therefore promote flowering in long day plants?

PMC Practice 1
Biology
Coordination and Control
Coordination in Plants
Elimination Tool:

A) Red

B) Blue

C) Green

D) White

125 / 201

It is the most energy rich compound.

PMC Practice 1
Biology
Bioenergetics
Respiration Mechanism – Glycolysis to Electron Transport Chain
Elimination Tool:

A) FADH2

B) ATP

C) NADH

D) GTP

126 / 201

Which of the following statements is incorrect?

PMC Practice 1
Biology
Enzymes
Elimination Tool:

A) The competitive inhibitor affects the rate of breakdown of the enzyme-substrate complex

B) The presence of the competitive inhibitor decreases the Km of the enzyme for the substrate

C) A competitive inhibitor reacts reversibly with the enzyme to form an enzyme-inhibitor complex

D) In competitive inhibition, the inhibitor molecule is not chemically changed by the enzyme

127 / 201

The infection of lungs is called:

PMC Practice 1
Biology
Gaseous Exchange
Respiratory Disorders
Elimination Tool:

A) Emphysema

B) Asthma

C) Pneumonia

D) Bronchitis

128 / 201

Gray matter is primarily composed of:

PMC Practice 1
Biology
Coordination and Control
Central Nervous System
Elimination Tool:

A) Axons

B) Synapse

C) Neuron somas

D) None of these

129 / 201

In which of the following will water evaporate earlier?

PMC Practice 1
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) Cup

B) Saucepan

C) Glass

D) Small bowl

130 / 201

In a typical menstrual cycle of 28 days, what is the most likely fertile period?

PMC Practice 1
Biology
Reproduction
Reproduction in Females
Elimination Tool:

A) Days 5 to 10

B) Days 1 to 5

C) Days 14 to 15

D) Days11to14

131 / 201

The radial symmetry is found in the animals of which of the following?

PMC Practice 1
Biology
Kingdom Animalia
Grade Radiata & Grade Bilateria
Elimination Tool:

A) Protozoa

B) Porifera

C) Cnidaria

D) All of these

132 / 201

In which step is lysozyme released by the bacteriophage?

PMC Practice 1
Biology
Bio-diversity | Variety of Life
Elimination Tool:

A) Attachment

B) Penetration

C) Injection

D) Replication

133 / 201

Which type of bond is not responsible in maintaining the tertiary structure of proteins?

PMC Practice 1
Biology
Biological Molecules
Proteins
Elimination Tool:

A) Ionic

B) Hydrogen

C) Peptide

D) Glycosidic

134 / 201

In Morgan’s linkage experiment, when males and females of F2 generation mate with each other and produce offspring, the percentage of recombinants was:

PMC Practice 1
Biology
Variation and Genetics
Sex Linkage
Elimination Tool:

A) 37

B) 22

C) 2

D) 70

135 / 201

Carbohydrate catabolism is concerned with the fate of:

PMC Practice 1
Biology
Nutrition
Digestion and Absorption
Elimination Tool:

A) ATP

B) Glucose

C) Aminoacid

D) All of these

136 / 201

Primordial soup is a set of hypothetical conditions on ancient earth first proposed by?

PMC Practice 1
Biology
Evolution
Elimination Tool:

A) Dmitri Ivanovsky

B) Dmitry Anuchin

C) Nikolay Shatsky

D) Alexander Oparin

137 / 201

Carotenoids perform protective function in which of the following organism?

PMC Practice 1
Biology
Biological Molecules
Lipids
Elimination Tool:

A) Animals

B) Plants

C) Both

D) None of these

138 / 201

It uses the single strand RNA as a template for making double stranded DNA:

PMC Practice 1
Biology
Chromosomes and DNA
DNA Replication
Elimination Tool:

A) DNA polymerase

B) DNA ligase

C) Reverse transcriptase

D) All of these

139 / 201

A single motor neuron may innervate as few as 3-5 fibers in muscles of:

PMC Practice 1
Biology
Coordination and Control
Peripheral Nervous System
Elimination Tool:

A) Upper arms

B) Legs

C) Eyes

D) Heart

140 / 201

Centrosome is found in:

PMC Practice 1
Biology
Cell Structure and Function
Cytoplasm and Organelles
Elimination Tool:

A) Cytoplasm

B) Nucleus

C) Chromosomes

D) Nucleolus

141 / 201

The semi-solid mass in stomach is known as:

PMC Practice 1
Biology
Nutrition
Digestion and Absorption
Elimination Tool:

A

A) Bolus

B) Chyme

C) Serum

D) Food

142 / 201

Free radical reactions take place in the presence of ______?

PMC Practice 1
Chemistry
Hydrocarbons
Elimination Tool:

A) Heat

B) Sunlight

C) Catalyst

D) Oxygen

143 / 201

Many sarcomeres in series make up the length of a:

PMC Practice 1
Biology
Support and Movement
Ultrastructure & Mechanism of Skeletal Muscle Contraction
Elimination Tool:

A) Microtubules

B) Myofibril

C) Myosin filament

D) M-line

144 / 201

The function of a cell wall in prokaryotes is:

PMC Practice 1
Biology
Kingdom Prokaryote
Size and Structure of Bacteria
Elimination Tool:

A) To give cells rigidity

B) To give specific shape

C) To protect from osmotic lysis

D) All of Above

145 / 201

Most reflex arcsare:

PMC Practice 1
Biology
Coordination and Control
Steps Involved in Nervous Coordination
Elimination Tool:

A) Monosynaptic reflex

B) Polysynaptic reflex

C) Hemi Synaptic Reflex

D) None of these

146 / 201

Which of the following are component of half wave rectifier?

PMC Practice 1
Physics
Alternating Current
Principle of Generation, Transmission and Reception of Electromagnetic Waves
Elimination Tool:

A) Transformer

B) Load resistance

C) Power supply

D) All of the above

147 / 201

Force on a proton of charge 2e in a magnetic field of B at 45° while moving with 2 m/s is:

PMC Practice 1
Physics
Magnetism and Electromagnetic Induction
Force on a Moving Charge in a Magnetic Field
Elimination Tool:

A) 2✓2eB

B) 4eB

C) 2eB

D) eB

148 / 201

If the supply frequency of a transformer increases, the secondary output voltage of the transformer:

PMC Practice 1
Physics
Magnetism and Electromagnetic Induction
Transformers
Elimination Tool:

A) Increases

B) Decreases

C) Remains unchanged

D) Any of above

149 / 201

Which radiation is used in smoke detectors?

PMC Practice 1
Physics
Nuclear Physics
Biological Effects and Uses of Radiation
Elimination Tool:

A) Alpha

B) Beta

C) Gamma

D) All of these

150 / 201

One rpm is equal to _____ rad/sec

PMC Practice 1
Physics
Elimination Tool:

A) 2

B) 1.5

C) 2.5

D) 0.105

151 / 201

Formula for electric field intensity is:

PMC Practice 1
Physics
Electrostatics
Elimination Tool:

A) E=F/q

B) E=3F/2q

C) E=F/3q

D) None of them

152 / 201

If an object is undergoing an orbital motion around another object it is called?

PMC Practice 1
Physics
Circular Motion & Momentum
Elimination Tool:

A) Revolution

B) Rotation

C) Both of them

D) None of them

153 / 201

In which rectifier is the ripple factor less?

PMC Practice 1
Physics
Alternating Current
A.C. Circuits
Elimination Tool:

A) Full wave

B) Half wave

C) Both A and B

D) None of them

154 / 201

Which of this is constant in isochoric process?

PMC Practice 1
Physics
Thermochemistry
Elimination Tool:

A) Total heat

B) Work done

C) Entropy

D) Internal energy

155 / 201

Formula for Power is?

PMC Practice 1
Physics
Work, Power & Energy
Elimination Tool:

A) P =IV

B) P=V/I

C) p=V+I

D) p=VQ

156 / 201

Which of the following cases (if any) requires the greatest amount of heat? (In each case the material is the same)

PMC Practice 1
Physics
Heat and Thermodynamics
Elimination Tool:

A) 1.5 kg of the material is to be heated by 7.0 C0

B) 3.0 kg of the material is to be heated by 3.5 C0

C) 0.50 kg of the material is to be heated by 2 1 C0

D) The amount of heat required is the same in each of the three previous case

157 / 201

The interference of green photon to red photon will cause:

PMC Practice 1
Physics
Optics, Nature of Light and Optical Instruments
Elimination Tool:

A) Spectrum

B) Interference

C) Diffraction

D) No effect

158 / 201

The Lenz’s law refers to:

PMC Practice 1
Physics
Magnetism and Electromagnetic Induction
Faradays and Lenz Law and Induced EMF
Elimination Tool:

A) Induced current

B) Induced potential

C) Motional emf

D) All of these

159 / 201

A body of mass 10 kg is moving at a height of 2 m, with a uniform speed of 2 m/s.

Its total energy is:

PMC Practice 1
Physics
Work, Power & Energy
Elimination Tool:

A) 316 J
B) 216 J
C) 392 J
D) 416 J

A) 316 J

B) 216 J

C) 392 J

D) 416 J

160 / 201

The fast-moving electrons stopped by a heavy metallic target in an evacuated glass tube, give rise to the production of:

PMC Practice 1
Physics
Nuclear Physics
Nuclear Reactions
Elimination Tool:

A) α- particles

B) X-rays

C) Laser

D) β-particles

161 / 201

In a simple pendulum, work done by the tension force is?

PMC Practice 1
Physics
Work, Power & Energy
Elimination Tool:

A) Positive

B) Negative

C) Zero

D) None of these

162 / 201

A glass block is immersed in a tank which is filled with a liquid of higher refractive index. Light is incident from the liquid on one side of glass block at an angle greater than critical angle.

Which of the following statements are true?

PMC Practice 1
Physics
Elimination Tool:

A) Light is partially transmitted into the glass block bending towards the normal and partially reflected

B) Light is partially transmitted into the glass block bending away from the normal and partially reflected

C) Light is completely transmitted into the glass and did not reflect in to the liquid

D) Light is completely reflected back into the liquid

163 / 201

Maximum power delivered by a battery is?

PMC Practice 1
Physics
Work, Power & Energy
Elimination Tool:

A) Pmax = E2/4r

B) Pmax =4rE2

C) Pmax =VIT

D) Unlimited

164 / 201

Work function depends on:

PMC Practice 1
Physics
Elimination Tool:

A) Structure of metals only

B) Nature of surface only

C) Both metals and nature of surface

D) Threshold frequency

165 / 201

A force which acts on an object moving in a circle and is directed towards the center of the circle is called:

PMC Practice 1
Physics
Circular Motion & Momentum
Elimination Tool:

A) Bending Force

B) Centripetal Force

C) Centrifugal force

D) None of these

166 / 201

If a charge of 2C is moving with 5m/s enter at 30° in 3 T, calculate the force experienced by it.

PMC Practice 1
Physics
Magnetism and Electromagnetic Induction
Force on a Moving Charge in a Magnetic Field
Elimination Tool:

A) 10N

B) 15N

C) 20N

D) 30N

167 / 201

A fixed mass of an ideal gas is contained in a cylinder at constant temperature. Now, the pressure of the gas is decreased.

What happened to the molecules of gas?

PMC Practice 1
Physics
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Their mean square speed decreases

B) Number of collision between molecules and walls of container decreased

C) The force of attraction between them increase

D) Their size decreases

168 / 201

Magnetic flux is maximum when the angle, between the area vector and the magnetic field lines, is?

PMC Practice 1
Physics
Magnetism and Electromagnetic Induction
Magnetic Flux and Flux Density
Elimination Tool:

A) 0°

B) 90°

C) 120°

D) All of these

169 / 201

Three types of radioactive elements are emitted when unstable nuclei undergo radioactive decay. Which of the following is not one of them?

PMC Practice 1
Physics
Nuclear Physics
Radioactivity
Elimination Tool:

A) Alpha

B) Beta

C) Gamma

D) Delta

170 / 201

A full wave rectifier is operating from 50 Hz mains. Fundamental frequency of ripple will be:

PMC Practice 1
Physics
Alternating Current
A.C. Circuits
Elimination Tool:

A) 100 Hz

B) 25 Hz

C) 50 Hz

D) 200 Hz

171 / 201

Electric field lines due to a positive charge are:

PMC Practice 1
Physics
Electrostatics
Elimination Tool:

A) Always horizontal

B) Always vertical

C) Radially towards the charge

D) Radially away from the charge

172 / 201

Wave nature of light is proved by:

PMC Practice 1
Physics
Optics, Nature of Light and Optical Instruments
Elimination Tool:

A) Polarisation

B) Black body radiation

C) Compton's effect

D) Photoelectric effect

173 / 201

The angular displacement of an object after one complete revolution is:

PMC Practice 1
Physics
Circular Motion & Momentum
Elimination Tool:

A) 0 radian

B) π radian

C) 2π radian

D) (1 /3)xπradian

174 / 201

The source of x-rays generation is:

PMC Practice 1
Physics
Nuclear Physics
Biological Effects and Uses of Radiation
Elimination Tool:

A) Cu

B) H

C) Na

D) Al

175 / 201

In a stationary wave, the distance between a node and consecutive antinode is:

PMC Practice 1
Physics
Wave Motion and Sound
Elimination Tool:

A) A quarter of wavelength

B) 3/4 of wavelength

C) One wavelength

D) Half of wavelength

176 / 201

Step up transformer have ________ turns in secondary coil.

PMC Practice 1
Physics
Alternating Current
Principle of Generation, Transmission and Reception of Electromagnetic Waves
Elimination Tool:

A) More

B) Less

C) Equal

D) Zero

177 / 201

Two unlike charges attract each other with a force of 10 N. If the distance between them is doubled, the force between them is:

PMC Practice 1
Physics
Electrostatics
Elimination Tool:

A) 40 N

B) 20 N

C) 5 N

D) 2.5 N

178 / 201

Which of the following is not an assumption of the kinetic model of an ideal gas?

PMC Practice 1
Physics
Elimination Tool:

A) The size of the molecules is much smaller than the separation between molecules

B) Molecules suffer negligible momentum change during wall collisions

C) Molecules do not exert force on each other except during a collision

D) The gas molecules are in random motion and may change their direction of motion after every collision

179 / 201

Charged body attracts uncharged body by ________ induction.

PMC Practice 1
Physics
Electrostatics
Elimination Tool:

A) Electrostatic

B) Magnetic

C) Both A and B

D) None of these

180 / 201

In a scanning electron microscope, image formed is:

PMC Practice 1
Physics
Optics, Nature of Light and Optical Instruments
Elimination Tool:

A) 2D

B) 3D

C) 1D

D) Any of these

181 / 201

The total mass of protium deuterium and tritium is _______ more than three H atoms.

PMC Practice 1
Physics
Nuclear Physics
Composition of Atomic Nuclei
Elimination Tool:

A) 3 neutrons

B) 3 protons

C) 3 electrons

D) None of these

182 / 201

If a rotating body is moving anti-clockwise, the direction of angular velocity is:

PMC Practice 1
Physics
Scalars and Vectors
Basic Concepts of Vectors
Elimination Tool:

A) Towards the centre

B) Along the linear velocity

C) Away from the centre

D) Perpendicular to both radius and linear velocity

183 / 201

The basic purpose of filter is to?

PMC Practice 1
Physics
Electronics
Rectification
Elimination Tool:

A) Minimize variation in ac signal

B) Suppress hannonics in rectified output

C) Remove ripples from the rectified output

D) Stabilize dc output voltage

184 / 201

Displacement of sun with respect to earth is?

PMC Practice 1
Physics
Motion in Two Dimensions
Elimination Tool:

A) r

B) 2πr

C) 2r

D) r2

185 / 201

Motional e.m.f induced in a coil is dependent on?

PMC Practice 1
Physics
Magnetism and Electromagnetic Induction
Induced EMF and Induced Current
Elimination Tool:

A) Magnetic field

B) Orientation

C) Length

D) All of these

186 / 201

Minimum energy required for pair production is:

PMC Practice 1
Physics
Nuclear Physics
Mass Defect And Binding Energy
Elimination Tool:

A) 939 MeV

B) 942 MeV

C) l.02 MeV

D) 0.511 MeV

187 / 201

The pendulum of a certain pendulum clock is made of brass. When the temperature increases, what happens to the period of the clock?

PMC Practice 1
Physics
Heat and Thermodynamics
Elimination Tool:

A) It increases

B) It decreases

C) It remains the same

D) It decreases with the square of temperature

188 / 201

Internal resistance of a battery is ____ ohm, if E=l0V, Vt=9V, I= lA.

PMC Practice 1
Physics
Current Electricity
Ohms Law
Elimination Tool:

A) 1

B) 0.1

C) 0.01

D) None of these

189 / 201

Ten complete waves pass through a point in 2 seconds. If the wavelength is 20 cm, what is the speed of the wave?

A) 0°

B) 90°

C) 120°

D) All of these

190 / 201

Which of the following is not a unit of power?

PMC Practice 1
Physics
Work, Power & Energy
Elimination Tool:

A) Horse power

B) Kilowatt

C) kWh

D) Nm/s

191 / 201

When a standing wave is set up on a string fixed at both ends, which of the following statements is true?

PMC Practice 1
Physics
Wave Motion and Sound
Elimination Tool:

A) Sum of the number of antinodes and the number of nodes is always even

B) Wavelength = length string / number of nodes

C) The shape of the string at any instant shows a symmetry about the midpoint of the string

D) Frequency = number of nodes x fundamental frequency

192 / 201

Two forces of 5 N and 15 N arc work on a body in opposite directions. If the body displaced by 5 m in direction of the net force, what will be the work done by a net force?

PMC Practice 1
Physics
Work, Power & Energy
Elimination Tool:

A) 50 J

B) 75 J

C) 25 J

D) 100 J

193 / 201

A gas expands from V1 to V2 at pressure P. Work done is:

PMC Practice 1
Physics
Thermochemistry
Elimination Tool:

A) P/(V2-V1)

B) (P2-P1) * V

C) P(V1V2/(V2-V1))

D) P(V2-V1)

194 / 201

Which metal is used to detect radioactivity?

PMC Practice 1
Physics
Nuclear Physics
Radioactivity
Elimination Tool:

A) Heavy metal

B) Mercury metal

C) Hydrogen gas

D) None of these

195 / 201

Radiations are classified by its ______ nature.

PMC Practice 1
Physics
Nuclear Physics
Biological Effects and Uses of Radiation
Elimination Tool:

A) Ionizing

B) Non ionizing

C) Both a and b

D) Radiations cannot be classified

196 / 201

In a lamp load, when more than one lamp are switched on, the total resistance of the load:

PMC Practice 1
Physics
Current Electricity
Electrical Power and Power Dissipation in Resistors
Elimination Tool:

A) Increases

B) Decreases

C) Remains same

D) None of the above

197 / 201

Instantaneous velocity is:

PMC Practice 1
Physics
Scalars and Vectors
Basic Concepts of Vectors
Elimination Tool:

A) Always positive

B) Always negative

C) Positive and negative

D) Not enough info

198 / 201

In a Young’s double-slit experiment, fringes are very close to each other. How can we increase the distance between fringes?

PMC Practice 1
Physics
Optics, Nature of Light and Optical Instruments
Elimination Tool:

A) By increasing the distance between light source and slits

B) By increasing the distance from slits to the screen

C) By increasing the distance between slits

D) By increasing the frequency of ligh

199 / 201

If displacement = 15 m and time t = 10 seconds, then average velocity is:

PMC Practice 1
Physics
Motion in Two Dimensions
Elimination Tool:

A) 12.5 m/s

B) 1.5 m/s

C) 2.5 m /s

D) 3 m/s

200 / 201

Beats can be used to find:

PMC Practice 1
Physics
Oscillations and Simple Harmonic Motion
Elimination Tool:

A) Speed

B) Frequency

C) Amplitude

D) Wavelength

201 / 201

Motional e.m.f induced in a coil is dependent on?

PMC Practice 1
Physics
Magnetism and Electromagnetic Induction
Induced EMF and Induced Current
Elimination Tool:

A) Magnetic field

B) Orientation

C) Length

D) All of these

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