Which of the following gas, when ignited, burns with a blue flame and is not very soluble in water?

NUMS Mock 3
Chemistry
s and p Block Elements
Environmental Chemistry
A) O2
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B) CO2
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C) N2
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D) He
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Aromatic compounds burn with a sooty flame because:

NUMS Mock 3
Chemistry
Fundamental Principles of Organic Chemistry
A) They are resistant to react with oxygen
Show Explanation
B) They have a cyclic structure
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C) They have a high percentage of Carbon
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D) They have a high percentage of hydrogen
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Both ionic and covalent bonds are present in:

NUMS Mock 3
Chemistry
Chemical Bonding
A) CH4
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B) SO2
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C) KCl
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D) NaOH
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A certain radioactive isotope has a half-life of 50 days. Fraction of the material left behind after 100 days will be:

NUMS Mock 3
Chemistry
Analytical Chemistry
A) 125%
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B) 25%
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C) 50%
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D) 100%
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Ketones can be made by oxidation of:

NUMS Mock 3
Chemistry
Aldehydes and Ketones
A) Aldehydes
Show Explanation
B) Primary Alcohols
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C) Secondary Alcohols
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D) Tertiary Alcohols
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The influence of temperature on reaction rate is predicted by:

NUMS Mock 3
Chemistry
Reaction Kinetics
A) Free energy change
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B) Van Der Waals equation
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C) Arrhenius equation
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D) Kinetic equation
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If a molecule MX3 has zero dipole moment, the sigma bonding orbitals used by M are:

NUMS Mock 3
Chemistry
Chemical Bonding
A) Pure p
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B) Sp hybrids
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C) Sp2hybrids
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D) Sp3hybrids
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Which of the following is locating agent?

NUMS Mock 3
Chemistry
Analytical Chemistry
A) H2S
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B) CS2
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C) Rubeanic acid
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D) Ninhydrin
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A crystal system having all sides (a, b and c) unequal and anglesα = β = γ= 90 is:

NUMS Mock 3
Chemistry
States of Matter – Gases, Liquids and Solids
A) Cubic
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B) Rhombohedral
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C) Orthorhombic
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D) Hexagonal
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In this reaction NH4* + H2O -> H3O*, the conjugate base of H3O+ ion is:

NUMS Mock 3
Chemistry
Chemical Equilibrium
A) NH4+
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B) H2O
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C) H*
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D) NH3
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Which of the following will not undergo aldol condensation?

NUMS Mock 3
Chemistry
Aldehydes and Ketones
A) Acetaldehyde
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B) Propanaldehyde
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C) Benzaldehyde
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D) Trideuteroacetaldehyde
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Impurities of lead in silver are removed by:

NUMS Mock 3
Chemistry
d and f Block Elements
A) Parke’s process
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B) Solvay process
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C) Cyanide process
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D) Amalgamation process
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The decreasing order of second ionization energy of K, Ca, Ba is:

NUMS Mock 3
Chemistry
Chemical Bonding
A) K > Ca > Ba
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B) Ca > Ba > K
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C) Ba > K > Ca
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D) K > Ba > Ca
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The shape of CO2 molecule is similar to:

NUMS Mock 3
Chemistry
Chemical Bonding
A) H2S
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B) SO2
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C) SnCl2
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D) BeF2
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The color of transition metal complexes is due to transition of electrons between:

NUMS Mock 3
Chemistry
d and f Block Elements
A) p to d orbitals
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B) d to d orbitals
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C) p to p orbitals
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D) d to p orbitals
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Which of the following solids is an example of a substance with a macromolecular structure?

NUMS Mock 3
Chemistry
States of Matter – Gases, Liquids and Solids
A) Aluminium chloride
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B) Ice
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C) Magnesium oxide
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D) Silicon (IV) oxide
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What is the correct name for this structure?

NUMS Mock 3
Chemistry
Fundamental Principles of Organic Chemistry
A) 3,3 4- trimethyl hexane
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B) 1,1,2- trimethyl ethane
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C) 2,2-dimethyl propane
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D) 2-ethyl,1-methylethane
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The products of decomposition of Mg(NO3)2are:

NUMS Mock 3
Chemistry
Periodicity in Elements
A) MgO and NO2
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B) Mg and NO2
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C) MgO, NO2and O2
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D) Mg(NO3)2
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Which of the following molecules has the largest number of shared pairs of electrons?

NUMS Mock 3
Chemistry
Chemical Bonding
A) C2H4
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B) N2
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C) CO2
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D) NH3
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Which of the following substances exhibits hydrogen bonding?

NUMS Mock 3
Chemistry
Chemical Bonding
A) H2S
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B) SiH4
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C) NH3
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D) HI
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Precipitation occurs when the product of ionic concentrations is:

NUMS Mock 3
Chemistry
Chemical Equilibrium
A) Greater than Ksp
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B) Less than Ksp
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C) Equal to Ksp
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D) Equal to unity
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Which of the following has the highest value of pKa?

NUMS Mock 3
Chemistry
Chemical Equilibrium
A) CH3- CH2OH
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B) CI – CH2- CH2OH
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C) F3C – CH2- OH
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D) CH3- CH(CH3) – CH2OH
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Free Nitrogen and Oxygen are present in atmosphere but they do not react with each other under normal conditions because:

NUMS Mock 3
Chemistry
Environmental Chemistry
A) Nitrogen requires a catalyst
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B) Oxygen is very inactive
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C) Oxygen is found in less concentration
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D) Nitrogen is highly inactive gas
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Stronger the oxidizing agent, higher is the:

NUMS Mock 3
Chemistry
Electrochemistry
A) Emf of cell
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B) Oxidation potential
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C) Reduction potential
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D) Redox potential
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The presence of several fine lines in a line spectrum shows the presence of:

NUMS Mock 3
Chemistry
Atomic Structure
A) Shells
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B) Energy levels
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C) Sub shells
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D) All of these options are correct
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Nylon-6,6 is also called:

NUMS Mock 3
Chemistry
Macromolecules
A) Poly styrene
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B) Polyester
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C) Polyamide
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D) Polyvinyl alcohol
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Identify the correct statement:

NUMS Mock 3
Chemistry
s and p Block Elements
A) Element sodium can be prepared and isolated by electrolyzing an aqueous solution of NaCl
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B) Elemental Na is a strong oxidizing agent
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C) Elemental Na is insoluble in NH3
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D) Elemental Na is easily oxidizing
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If any amino acids contain greater number of NH2, it is:

NUMS Mock 3
Chemistry
Alkyl Halides and Amines
A) Acidic
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B) Neutral
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C) Amphoteric
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D) Basic
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Salts of weak bases react with strong acids to give a/an

NUMS Mock 3
Chemistry
Acids, Bases and Salts
A) Basic solution
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B) Acidic solution
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C) Neutral solution
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D) None
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Which of these pollutants is produced by burning of coal and causes acid rain.

NUMS Mock 3
Chemistry
Environmental Chemistry
A) NO
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B) CO2
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C) SO2
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D) CO
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Which of these in an aqueous solution of equal concentration has the lowest pH?

NUMS Mock 3
Chemistry
Carboxylic Acids and its Derivatives
A) Chloroethanoic acid
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B) Ethanoic acid
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C) Ethylamine
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D) Phenol
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The following changes to the system at equilibrium have no effect on Kc except:

NUMS Mock 3
Chemistry
Chemical Equilibrium
A) Increasing reactant concentrations
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B) Equal number of reactant and product gas molecules
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C) Increasing temperature
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D) Using a catalyst
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Which one of the following reagents is used to distinguish between aldehydes and ketones?

NUMS Mock 3
Chemistry
Aldehydes and Ketones
A) Alkaline Iodine
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B) Tollen’s Reagent
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C) Bromine
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D) 2, 4 DNPH
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Solid CO2 dry ice has a structure just like:

NUMS Mock 3
Chemistry
States of Matter – Gases, Liquids and Solids
A) Diamond
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B) Sulphur
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C) Graphite
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D) None of the above
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For a single step reaction A ->B + 2C, the rate law is:

NUMS Mock 3
Chemistry
Reaction Kinetics
A) Rate = k
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B) Rate = k[A][B]
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C) Rate = k[A]
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D) Rate = k[B]
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The valency of an atom will be one if there is a sufficient gap between first and second ____.

NUMS Mock 3
Chemistry
Chemical Bonding
A) Electron affinity
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B) Ionization energy
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C) Electronegativity
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D) None of these options are correct
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The substance which conducts electricity by the movement of ions:

NUMS Mock 3
Chemistry
Chemical Bonding
A) Graphite
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B) Copper
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C) Molten NaCl
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D) Mercury
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Which of the following is the most environmentally friendly source to derive energy?

NUMS Mock 3
Chemistry
Environmental Chemistry
A) Lead-acid accumulator
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B) H2- O2fuel cell
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C) Silver oxide battery
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D) Alkaline battery
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Phenylmethyl ketone can be converted into ethyl benzene in one step by using:

NUMS Mock 3
Chemistry
Aldehydes and Ketones
A) LiAlH4
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B) Zn(Hg)-HCl
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C) NaBH4
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D) CH3MgI
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Alkenes undergo:

NUMS Mock 3
Chemistry
Hydrocarbons
A) Electrophilic Addition
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B) Electrophilic substitution
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C) Nucleophilic substitution
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D) Nucleophilic addition
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Identify the correct usage of the adverb in the sentence:

She spoke ______ during the presentation.

NUMS Mock 3
English
A) Clear
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B) Clearly
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C) Clearlier
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D) Clearest
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Select the nearest correct meaning of the given word:

DERACINATE

NUMS Mock 3
English
Key Vocabulary
A) Inculcate
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B) Incarnate
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C) Pull up
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D) Send for
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Demonstrate the correct use of subject-verb agreement:
He was ____ in the rain then.

NUMS Mock 3
English
Fill in the blank
A) Enjoys
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B) Enjoying
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C) Enjoy
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D) Will enjoy
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Identify the correct form of the pronoun to complete the sentence:

_____ going to the movies tonight?

NUMS Mock 3
English
A) Who’s
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B) Whose
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C) Whom
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D) Who
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The new teacher showed no _____ about hitting the students.

NUMS Mock 3
English
Fill in the blank
A) Quakes
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B) Qualms
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C) Quarrel
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D) Quotation
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Last Saturday my father _____ (take) my friends and me to the circus.

NUMS Mock 3
English
A) Take
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B) Took
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C) Will take
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D) Has taken
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They sometimes feel a _____ for the mountains and the sea.

NUMS Mock 3
English
Fill in the blank
A) Yearning
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B) Yapping
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C) Yelling
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D) Yielding
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Choose the word most similar in meaning to the capitalized one:

MEDITATIVE:

NUMS Mock 3
English
Key Vocabulary
A) Selfish
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B) Thoughtful
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C) Heedless
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D) Opinion
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Which of the following sentences is grammatically incorrect?

NUMS Mock 3
English
Grammar and Punctuation
A) Is this your jacket?
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B) Whose jacket is this?
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C) Is this jacket yours?
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D) Who’s jacket is this?
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In the following question, four alternative sentences are given. Choose the CORRECT one.

NUMS Mock 3
English
Grammar and Punctuation
A) There is no clearly defined plot nor is there an attempt to establish a strong “hero figure”
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B) There is neither clearly defined plot not is there an attempt to establish a strong “hero figure”
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C) There is not clearly defined plot nor is there any attempt to establish a strong “hero figure”
Show Explanation
D) There not either clearly defined plot not is there an attempt to establish a strong “hero figure”
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You will find more information in the ___________.

NUMS Mock 3
English
Fill in the blank
A) Attached to file
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B) Attached file
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C) Attachment file
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D) File what is attached
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_________ people know the town better than old Jake here.

NUMS Mock 3
English
Fill in the blank
A) Only few
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B) The few
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C) Only the few
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D) Few
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Complete the sentence using the grammatically correct word or phrase.

Committee _______ issued a report.

NUMS Mock 3
English
Grammar and Punctuation
A) Has
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B) Will have
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C) Will
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D) Have
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_______ is involved in lipid synthesis/metabolism.

NUMS Mock 3
Biology
Cell Structure and Function
A) Smooth endoplasmic reticulum
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B) Rough endoplasmic reticulum
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C) Mitochondria
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D) Vacuoles
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In the following question, four alternative sentences are given. Choose the CORRECT one.

NUMS Mock 3
English
Grammar and Punctuation
A) A common cause of failure is a mistaking ambition for the boy on the part of the parents.
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B) A common cause of failure is a mistaken ambition for the boy on the part of parents.
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C) A common cause of failure is a mistake ambition for the boy on the part of the parents.
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D) A common causes of failure is a mistake ambition for the boy on the part of the parents.
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Identify the correct form of the adjective to complete the sentence:

The weather today is ______ than yesterday.

NUMS Mock 3
English
A) Hot
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B) Hotter
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C) Hotest
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D) Hotted
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Change in entropy does not depend on:

NUMS Mock 3
Physics
Heat and Thermodynamics
A) Amount of heat added to the system
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B) Amount of heat rejected from the system
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C) The temperature of the substance
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D) Amount of the substance
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When the frequency of the applied force becomes equal to one of natural frequencies of body then the body oscillates with maximum displacement this phenomenon is called:

NUMS Mock 3
Physics
Wave Motion and Sound
Oscillations and Simple Harmonic Motion
A) Heating
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B) Resonance
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C) Reverbnation
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D) Damping
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The beat frequency is given by:

NUMS Mock 3
Physics
Wave Motion and Sound
A) |fa – fb|
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B) |fa ÷ fb|
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C) |fa x fb|
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D) |fa + fb|
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In motion of satellites, necessary centripetal force is provided by:

NUMS Mock 3
Physics
Circular Motion & Momentum
A) Gravitational Force
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B) Coulomb’s Force
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C) Magnetic Force
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D) Nuclear Force
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Find the longest wavelength in the Paschen series, given R = 1.097 x 107m-1.

NUMS Mock 3
Physics
Atomic Spectra
A) 11097 A
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B) 18750 A
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C) 17884 A
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D) 19001 A
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If a wire having current 10A has a 3T magnetic field, what will be the magnetic field at a point from the wire at double the distance?

NUMS Mock 3
Physics
Magnetism and Electromagnetic Induction
A) Reduces by factor 2
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B) Becomes double
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C) Reduces by factor 4
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D) Becomes triple
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What force should be applied on a 10 kg body so that it moves down in a vacuum with an acceleration of 3 m/s2 ? (Take g=9.8 m/s2)

NUMS Mock 3
Physics
Forces and Motion
A) 42 N
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B) 46 N
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C) 68 N
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D) 53 N
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An emf of 120 volts of negligible internal resistance is connected across a resistance of 1000 ohm. The current flowing through the circuit will be:

NUMS Mock 3
Physics
Current Electricity
A) 120 A
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B) 120 x 103A
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C) 120 x 10-3A
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D) None
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Electric field strength at a point between oppositely charged plates is ‘E’. If the distance between plates is reduced to half, what will be the new value of electric intensity?

NUMS Mock 3
Physics
Electrostatics
A) 4E
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B) E/2
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C) E/4
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D) 2E
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For a stiff spring, the value of spring constant is:

NUMS Mock 3
Physics
Oscillations and Simple Harmonic Motion
A) Higher
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B) Lower
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C) Intermediate
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D) Zero
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A bullet of mass 20g leaves the gun with a velocity of 200 m/s. If the mass of gun is 2kg then the speed of recoil of the gun is:

NUMS Mock 3
Physics
Forces and Motion
A) 2000 m/s
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B) 2 m/s
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C) 20 m/s
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D) 200 m/s
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For one mole of gas, the relation for specific heat capacity at constant pressure ‘Cp’ and at constant volume ‘Cv’ is ________.

NUMS Mock 3
Physics
Heat and Thermodynamics
A) Cp + Cv = R
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B) Cp – R = Cv
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C) Cv – R = Cp
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D) Cp + R = Cv
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A body of mass of 2kg absorbed 10 J of radioactive radiations. The absorbed dose of radiation in rad is:

NUMS Mock 3
Physics
Nuclear Physics
A) 5
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B) 5 x 10-2
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C) 500
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D) 20
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An automobile is moving forwards with uniform velocity due to the force exerted by its engine. If the force is doubled with the velocity remaining constant what happens to its total power?

NUMS Mock 3
Physics
Work, Power and Energy
A) It is squared
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B) It is halved
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C) It is doubled
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D) It does not change
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The fractional change in resistance per kelvin is known as:

NUMS Mock 3
Physics
Current Electricity
A) None
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B) Temperature coefficient of resistance
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C) Thermal coefficient
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D) Volumetric æfficient of expansion
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A disc, a hoop, and a sphere of the same mass and radius are rolled down from a frictionless, inclined plane. Which has a greater speed on reaching the ground?

NUMS Mock 3
Physics
Circular Motion and Momentum
A) Disc
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B) Loop
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C) Sphere
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D) All have the same speed
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Lasers are used for producing an intense, ____ and coherent beam of visible light.

NUMS Mock 3
Physics
Optics, Nature of Light and Optical Instruments
A) Monochromatic
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B) Bichromatic
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C) Multichromatic
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D) Non Chromatic
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The direction of the magnetic line of force depends upon:

NUMS Mock 3
Physics
Magnetism and Electromagnetic Induction
A) Nature of the material of the conducting wire
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B) Area of the conducting wire
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C) Amount of the current
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D) Direction of the current
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Refrigerator is an example of:

NUMS Mock 3
Physics
Heat and Thermodynamics
A) First law of thermodynamics
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B) Second law of thermodynamics
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C) Newton law of motion
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D) Entropy
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Minimum energy required to eject an electron from metal surface is called:

NUMS Mock 3
Physics
Dawn of Modern Physics
A) Stopping potential
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B) Electromotive force
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C) Work function
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D) Threshold frequency
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Two bodies ‘x’ and ‘Y’ are attached to the ends of a string which passes over a pulley so that the two bodies hang vertically. If the mass of the body ‘x’ is 5 kg and that of body ‘Y’ is 4.8 kg. Find the acceleration?(g = 9.8 m/s^2)

NUMS Mock 3
Physics
Forces and Motion
A) 0.2 m/s2
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B) 1.7 m/s2
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C) 3.7 m/s2
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D) 4.9 m/s2
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The total energy of a block, executing simple harmonic motion is:

NUMS Mock 3
Physics
Oscillations and Simple Harmonic Motion
A) Independent of ‘x’
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B) Proportional to ‘x’
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C) Proportional to ‘x2’
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D) Proportional to ‘x-2’
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Lenz’s law in electromagnetic induction is the direct consequence of the principle of conservation of:

NUMS Mock 3
Physics
Magnetism and Electromagnetic Induction
A) Energy
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B) Charge
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C) Momentum
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D) Mass
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When the antinodes, in stationary waves, are passing through their equilibrium position, the energy is:

NUMS Mock 3
Physics
Wave Motion and Sound
A) Potential only
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B) Kinetic only
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C) A combination of both forms of energy
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D) There is no energy in stationary waves
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An electron enters in a magnetic field at an angle less than 90 degrees with magnetic field. Which of the following path is followed by an electron?

NUMS Mock 3
Physics
Magnetism and Electromagnetic Induction
A) Straight
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B) Circular
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C) Curve
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D) Helical
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Third law of Newton is also called:

NUMS Mock 3
Physics
Forces and Motion
A) Law of Inertia
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B) Equilibrium
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C) Law of action and reaction
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D) None
Show Explanation

In simple harmonic motion, acceleration will be maximum, when object is at:

NUMS Mock 3
Physics
Oscillations and Simple Harmonic Motion
A) Maximum displacement from the mean position
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B) Center position
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C) Half of the maximum displacement from mean position
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D) Mean position
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Why picture on a TV screen become distorted when a magnet is brought near the screen?

NUMS Mock 3
Physics
Magnetism and Electromagnetic Induction
A) Beam of electrons will be negative due to magnetic field
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B) Beam of electrons will be zero due to magnetic field
Show Explanation
C) Beam of electrons will be reflected due to magnetic field
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D) Beam of electrons will be deflected due to magnetic field
Show Explanation

In the case of linear deformation, the ratio of tensile stress to tensile strain is called:

NUMS Mock 3
Physics
Physics of Solids
Oscillations and Simple Harmonic Motion
A) Energy stored in a stretched wire
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B) Young’s double slit phenomenon
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C) Bulk Modulus
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D) Young’s Modulus
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Two long, parallel conductors which are free to move are arranged 1.0 cm apart. A steady current of 20 A flows in each of the conductors in the same direction. The conductors:

NUMS Mock 3
Physics
Magnetism and Electromagnetic Induction
A) Remains stationary
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B) Move towards each other
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C) Move away from each other
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D) Move at right angles to each other
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If Cv= 5/2 R , Cpwill be:

NUMS Mock 3
Physics
Heat and Thermodynamics
A) 2 / 5 R
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B) 2 / 7 R
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C) 5 / 2 R
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D) 7 / 2 R
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The different magnitudes of same physical quantities are measured by comparing them to:

NUMS Mock 3
Physics
Measurements
A) Available scale
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B) Standard size
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C) Each other
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D) Other physical quantities
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An object is moving along a circular path of radius 4m. What will be its angular displacement if it moves 14 m on this circular path?

NUMS Mock 3
Physics
Circular Motion & Momentum
A) 5.0 radians
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B) 3.5 radians
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C) 4.5 radians
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D) 5.5 radians
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In rotational motion, angular momentum plays a role which is analogous to that played by _____ in linear motion.

NUMS Mock 3
Physics
Circular Motion and Momentum
A) Linear velocity
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B) Linear momentum
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C) Linear acceleration
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D) Inertia
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The current measuring part of the Avometer consists of a number of low resistors connected …

NUMS Mock 3
Physics
Magnetism and Electromagnetic Induction
A) At an angle of 180 degrees with the galvanometer
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B) Parallel with galvanometer
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C) At an angle of 45 degrees With the galvanometer
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D) Perpendicular with the galvanometer
Show Explanation

All of the following are equivalent to watt except:

NUMS Mock 3
Physics
Work, Power & Energy
A) (Amperes)2ohm
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B) Joules/ sec
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C) Amperes x volts
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D) Amperes/volt
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If each particle of fluid is passing through the same point, what would be the flow?

NUMS Mock 3
Physics
Fluid Dynamics
A) Linear
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B) Streamline
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C) Tubular
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D) Both A and B
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If the temperature is increased from 200K to 800K, then what would be the change in pressure at constant volume?

NUMS Mock 3
Physics
Heat and Thermodynamics
A) Increases by factor 4
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B) Decreases by factor 4
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C) Increases by factor 2
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D) Decreases by factor 2
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The point at which an applied force produces linear motion but no rotatory Motion is:

NUMS Mock 3
Physics
Forces and Motion
A) Mid-point
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B) Center of gravity
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C) Optical center
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D) Pole
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A body starts sliding on a rough horizontal surface with a speed of 10 m/s. If the coefficient of friction is 0.2, find the distance traveled by the body before coming to rest. (g = 10m/s)

NUMS Mock 3
Physics
Forces and Motion
A) 15 m
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B) 25 m
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C) 35 m
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D) 40 m
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As an excretory organ, liver:

NUMS Mock 3
Biology
Homeostasis
A) Detoxifies many chemical poisons
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B) Produces ammonia for excretion by the kidneys
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C) Produces urea and uric acids from the nitrogen of amino acids
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D) All of the above
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In cross-section each Centriole consist of nine (each in triplets) of:

NUMS Mock 3
Biology
Cell Structure and Function
A) Microfilaments
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B) Microvilli
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C) Microtubules
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D) Intermediate filaments
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Conversion of ammonium into nitrates is:

NUMS Mock 3
Biology
Man and His Environment
A) Nitrification
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B) Nitrogen Fixation
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C) Ammonification
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D) Denitrification
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Movement of the Hip joint is which type of synovial joints?

NUMS Mock 3
Biology
Support and Movement
A) Gliding joint
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B) Ball and socket joint
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C) Pivot joints
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D) Hinge joint
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The table shows the characteristics of the blood in one blood vessel in the body.

Which blood vessel contains blood with these characteristics?

NUMS Mock 3
Biology
Transport
A) Aorta
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B) Pulmonary Artery
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C) Pulmonary Vein
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D) Vena cava
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DNA synthesis takes place in _____ phase of the cell cycle.

NUMS Mock 3
Biology
Cell Cycle
A) G0
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B) G1
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C) G2
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D) S
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The diagram represents two liquids, separated by a membrane through which osmosis can occur.

What movement of molecules will occur?

NUMS Mock 3
Biology
Transport
A) Molecules of dissolved substance move from left to right.
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B) Molecules of dissolved substance move from right to left.
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C) Overall, water molecules move from left to right.
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D) Overall, water molecules move from right to left.
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Identify the incorrect statement about Charles Darwin’s theory:

NUMS Mock 3
Biology
Evoloution
A) The individual of species have variations among them.
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B) There is always a tendency of over reproduction in a species.
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C) Vast gradual changes result in the origin of a new species.
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D) Favorable variations survive and unfavorable will be exterminated.
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E) Intra-specific competition occurs between different species and interspecific competition occurs among the individuals in a species.
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All of the followings are the effects of red light on plant, EXCEPT:

NUMS Mock 3
Biology
Growth and Development
A) Causes epicotyl (plumule) hook to unbend
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B) Induces increase in leaf area
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C) Elongation of internodes is promoted
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D) Stimulate flowering in long day plants
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Which type of protein structure contains the three dimensional structure?

NUMS Mock 3
Biology
Biological Molecules
A) Primary
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B) Secondary
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C) Tertiary
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D) Quaternary
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The causes of Cyanosis include:

NUMS Mock 3
Biology
Transport
A) Deficiency of vitamin C
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B) Varicella-zoster virus
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C) Degeneration of the cartilage of joints
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D) Ventricular septum defect
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Chest cavity is bounded by ribs and muscles on the sides, while the floor of chest cavity is called:

NUMS Mock 3
Biology
Gaseous Exchange
A) Pleura
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B) Alveoli
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C) Chest cage
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D) Diaphragm
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Nitrogen-cycle is facilitated by ______.

NUMS Mock 3
Biology
Ecosystem
A) Algae
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B) Fungi
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C) Bacteria
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D) Virus
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What type of atom is the carbon atom?

NUMS Mock 3
Biology
Biological Molecules
A) Divalent
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B) Monovalent
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C) Trivalent
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D) Tetravalent
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Unpaired facial bones are:

NUMS Mock 3
Biology
Support and Movement
A) Maxilla, Zygomatic
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B) Palatine, Inferior concha
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C) Nasal, Lacrimal
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D) Mandible, Vomer
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Many scientists believe that one of the following is evolutionary origin(s) of animals, plants and fungi?

NUMS Mock 3
Biology
Evolution
A) Protists
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B) Algae
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C) Bacteria
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D) Protozoans
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Choose the term from the following which is NOT a part of gene therapy?

NUMS Mock 3
Biology
Biotechnology
A) Bone marrow transplant
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B) Retrovirus
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C) DNA Fingerprinting
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D) Somatic cells
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An Rh negative woman is married to an Rh positive man whose father was also Rh negative. What are the chances that their child will be affected?

NUMS Mock 3
Biology
Variation and Genetics
A) 25%
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B) 50%
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C) 75%
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D) 100%
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Eukaryotic, multicellular, and consumers belong to ______ kingdom.

NUMS Mock 3
Biology
Bio-diversity | Variety of Life
A) Monera
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B) Protista
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C) Fungi
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D) Animalia
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This theory says that “mitochondria and chloroplasts are, in effect, ancient bacteria which now live inside the larger cells”:

NUMS Mock 3
Biology
Evolution
A) Darwin’s theory of evolution
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B) Lamarckism
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C) Neo – darwinism
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D) Endosymbiont theory
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Consider the following statements regarding blood pressure:

1. It is the pressure exerted by the blood on the walls of any vessel.

2. It decreases in the arteries as the distance from the heart increases.

3. It is lower in the capillaries than in the arteries.

4. It is usually lower in women than in men.

Choose the correct statements.

NUMS Mock 3
Biology
Transport
A) 1, 2 and 3 are correct.
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B) 2, 3 and 4 are correct.
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C) 1 and 4 are correct.
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D) 1, 2, 3 and 4 are correct.
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According to the theory of natural selection, organisms produce:

NUMS Mock 3
Biology
Evolution
A) Offspring according to the resources available
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B) Offspring to create resources
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C) To create resources
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D) More offspring than supported
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In semi-conservative replication, which of the following is true regarding the separation of two strands?

NUMS Mock 3
Biology
Chromosomes and DNA
A) Primary structure is conserved, and secondary structure is disturbed
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B) Secondary structure is conserved, and the primary structure is disrupted
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C) both the primary and secondary structures are conserved
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D) Both the primary and secondary structures are disrupted
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In a marine environment, the ion secreted by the kidney is:

NUMS Mock 3
Biology
Homeostasis
A) Na+
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B) K+
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C) Mg2+
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D) Cl-
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The inhibitor which closely resembles the substrate in its molecular structure and inhibits the enzyme activity by binding to the active site of the enzyme is called:

NUMS Mock 3
Biology
Enzymes
A) Feedback inhibitor
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B) Non-competitive inhibitor
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C) Allosteric modulator
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D) Competitive inhibitor
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Below the point at which the cotyledons are attached, the embryo axis is called _______.

NUMS Mock 3
Biology
Kingdom Plantae
A) Radicle
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B) Epicotyl
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C) Hypocotyl
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D) Coleoptile
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Now-a-days every newborn gets regular shots of vaccine for polio. It contains _________ for polio to make a child immune against this disease.

NUMS Mock 3
Biology
Bio-diversity | Variety of Life
A) Antibiotics
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B) Antibodies
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C) Antigens
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D) Antisera
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Amylase is not produced by the following type(s) of salivary gland:

NUMS Mock 3
Biology
Nutrition
A) Parotid
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B) Submandibular
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C) Sublingual
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D) None of the given options are correct
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Lymph nodes are not present:

NUMS Mock 3
Biology
Coordination and Control
A) Neck region
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B) Axilla
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C) Groin
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D) Spleen
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What is the size of Parvovirus?

NUMS Mock 3
Biology
Bio-diversity | Variety of Life
A) 200nm
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B) 20nm
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C) 30nm
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D) 100nm
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How many ml of blood is pumped by each contraction of the heart?

NUMS Mock 3
Biology
Transport
A) 80 ml
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B) 90 ml
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C) 70 ml
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D) 60 ml
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While working in a laboratory, before studying a sample under the microscope, it was immersed in a dye solution to obtain ______.

NUMS Mock 3
Biology
Biology and its Major Fields of Specialization
A) Magnification
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B) Image
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C) Match
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D) Contrast
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In which of the following growth phases, the number of bacteria increases the most rapidly?

NUMS Mock 3
Biology
Kingdom Protista
A) Lag phase
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B) Log phase
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C) Stationary phase
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D) Death / Decline phase
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The egg of a chick is laid at which of the following stages?

NUMS Mock 3
Biology
Growth and Development
A) Gastrula
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B) Blastula
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C) Cleavage
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D) Morula
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Which of the following blood transfusions can be made safely?

NUMS Mock 3
Biology
Variation and Genetics
A) Group A to group B
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B) Group B to group AB
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C) Group AB to group O
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D) Group A to group O
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The dark reactions of photosynthesis are characterized by:

NUMS Mock 3
Biology
Bioenergetics
A) Synthesis of ATP, O2 and NADH
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B) Utilization of ATP, CO2 and NADPH
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C) Electron transfer from NADPH to RuBP
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D) Carbon dioxide transfer from RuBP to glucose
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Which of the following, which is the incorrectly paired one?

NUMS Mock 3
Biology
Biology and its Major Fields of Specialization
A) Robert Hooke … cell wall
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B) Schlelden and schwann … cell theory
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C) Robert Brown… nucleus
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D) Watson and Crick … DNA model
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E) Virchow… mosaic model of plasma membrane
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Chemical nature of primers used in the PCR process is _______.

NUMS Mock 3
Biology
Biotechnology
A) RNA
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B) Protein
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C) Carbohydrate
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D) DNA
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Which valve action results from an increase in pressure in the ventricles of the heart?

NUMS Mock 3
Biology
Transport
A) The closing of all the heart valves
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B) The closing of semilunar valves
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C) The opening of the bicuspid valve
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D) The opening of the semilunar valves
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The numbers of capsomeres found in adenovirus capsid is?

NUMS Mock 3
Biology
Bio-diversity | Variety of Life
A) 162
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B) 200
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C) 252
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D) 155
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Phenylketonuria is

NUMS Mock 3
Biology
Chromosomes and DNA
A) Sex linked dominant trait
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B) Sex linked recessive trait
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C) Autosomal dominant trait
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D) Autosomal recessive trait
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Cardiac output is increased by all of the following EXCEPT:

NUMS Mock 3
Biology
Transport
A) Hypoxia
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B) Exercise
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C) Sleep
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D) Pregnancy
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DNA fingerprinting is basically done for:

NUMS Mock 3
Biology
Biotechnology
A) DNA cloning
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B) DNA analysis
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C) DNA sequencing
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D) DNA splicing
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5 different amino acids, numbered 1, 2, 3, 4, and 5, below from the following sequence in the path of a polypeptide chain:

1-2-3-4-2-5-3

Messenger RNA codon, which correspond to the amino acids, are:
amino acid 1 UGU

amino acid 2 GAU

amino acid 3 CAC

amino acid 4 UAG

amino acid 5 AAG

Which one of the following DNA bases sequences could provide the code for the given section of the polypeptide?

NUMS Mock 3
Biology
Biological Molecules
A) ACACTTGTGATGCTATTCGTG
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B) ACACUAGUGAUGCUAUUCGUG
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C) ACACTAGTGATGCTAAACGTG
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D) ACACTAGTGATCCTATTCGTG
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Booklungs serve the function of respiration in:

NUMS Mock 3
Biology
Gaseous Exchange
A) Scorpion
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B) Earthworm
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C) Frog
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D) Cockroaches
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What is the effect of enzyme DNA ligase?

NUMS Mock 3
Biology
Chromosomes and DNA
A) DNA is broken up at specific sites
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B) DNA fragments are joined together
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C) DNA replication occurs
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D) DNA transcription occurs
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The best function of coelom is described as ____.

NUMS Mock 3
Biology
Kingdom Animalia
A) To increase the size of the animals
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B) To help in the functioning of reproductive system
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C) To provide space for the development of organs and systems
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D) All of these options are correct
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Red-green color-blindness is an X-linked recessive disorder. Jacob’s paternal grandfather and father are both color-blind, but his mother has two normal alleles. What is the probability that Jacob is red-green color-blind?

NUMS Mock 3
Biology
Variation and Genetics
A) 0%
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B) 25%
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C) 50%
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D) 75%
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It is a method for rapid production of a very large number of copies of a particular fragment of DNA:

NUMS Mock 3
Biology
Biotechnology
A) Gel electrophoresis
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B) Polymerase chain reaction
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C) DNA extraction
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D) Recombination
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Icosahedral viruses have how many faces?

NUMS Mock 3
Biology
Variety of Life
A) 20
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B) 30
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C) 10
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D) 40
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In a pyramid of energy, which level represents the greatest amount of energy?

NUMS Mock 3
Biology
Man and His Enviornment
A) Producers
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B) First-order consumers
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C) Second-order consumers
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D) Third-order consumers
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A group of biologically active molecules formed from amino acids which interact with the surface of the lipid bilayer of cell membranes are called:

NUMS Mock 3
Biology
Biological Molecules
A) Integral Proteins
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B) Peripheral proteins
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C) Cell wall
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D) Plasmodesmata
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An example of competitive inhibition of an enzyme is the inhibition of;

NUMS Mock 3
Biology
Enzymes
A) Succinic dehydrogenase by malonic acid
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B) Cytochrome oxidase by cyanide
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C) Hexokinase by glucose
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D) Carbonic anhydrase by carbon dioxide
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NAD is an example of:

NUMS Mock 3
Biology
Biological Molecules
A) Mononucleotide
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B) Dinucleotide
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C) Trinucleotide
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D) Tetranucleotide
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