Statements (I) The university graduate claims that it is hard to find a job in this era. (II) There is a ratio of unemployment on a large scale

PreMedPK MDCAT Mock 1
Logical Reasoning

Statement: A large number of students are reported to be dropping out of school in villages as their parents want their children to help them in farms.

Courses of Action:

I. The government should immediately launch a programme to create awareness among the farmers about the value of education.

II. The government should offer incentives to those farmers whose children remain in schools.

III. Education should be made compulsory for all children up to the age of 14 and their employment banned.

PreMedPK MDCAT Mock 1
Logical Reasoning

Which one of the following has four sides

PreMedPK MDCAT Mock 1
Logical Reasoning

Which word does not belong to the group in each of the following questions?

PreMedPK MDCAT Mock 1
Logical Reasoning

Complete the sequence:

2, 15, 41, 80, _____

PreMedPK MDCAT Mock 1
Logical Reasoning

Statements:

Pakistan is a multilingual country. Urdu is the national language of Pakistan.

Conclusions:

(l) AII Pakistanis should learn many languages. (ll) To be a Pakistani one needs to learn Urdu.

PreMedPK MDCAT Mock 1
Logical Reasoning

A longitudinal wave is moving through a medium. Which of the following statements about the direction of the propagation of the wave and displacement of the medium is true?

PreMedPK MDCAT Mock 1
Physics
Wave Motion and Sound

When a force acts at right angles to the displacement (θ=90°) the work done is zero i.e. the force does not produce work. Identify the example/s from the following when work is zero.

I. It is considered ‘hard work’ to hold a heavy stone stationary at stretched hand

II. A person walks along a level surface while carrying a box

III. when a body moves in circular path

PreMedPK MDCAT Mock 1
Physics
Forces and Motion

The sensitivity of a potentiometer can be increased by _____.

PreMedPK MDCAT Mock 1
Physics
Current Electricity

E/m of an electron is given by the relationship.

PreMedPK MDCAT Mock 1
Physics
Magnetism and Electromagnetic Induction

A particle carrying charge of 2e falls through a potential difference of 3.0 V. Calculate energy acquired by it.

PreMedPK MDCAT Mock 1
Physics
Electrostatics

The force between two charges Q and q, separated by a distance is F. What will be the force between them when the distance between them is d/2?

PreMedPK MDCAT Mock 1
Physics
Electrostatics

Three 6 Ω are connected as shown in the diagram What is the resistance between points ‘A’ and ‘B’

PreMedPK MDCAT Mock 1
Physics
Current Electricity

What is the wavelength of the wave if the phase angle between two points of the medium is 3pi/4 and they are separated through a distance of 3 cm?

PreMedPK MDCAT Mock 1
Physics
Wave Motion and Sound

An example of a non-ohmic resistor is:

PreMedPK MDCAT Mock 1
Physics
Current Electricity

When brakes of a car are applied, angular velocity of a flywheel reduces from 900 cycle / min to 720 cycle / min in 6 sec. Angular retardation is:

PreMedPK MDCAT Mock 1
Physics
Circular Motion and Momentum

The half-life of C14 is approximately 5,730 years, while the half-life of C12 is essentially infinite. If the ratio of C14 to C12 in a certain sample is 25% less than the normal ratio in nature, how old is the sample?

PreMedPK MDCAT Mock 1
Physics
Nuclear Physics

A simple pendulum has mass M, length L, and time period T. What is the period of oscillation of the pendulum with mass 4M and length 0.49L?

PreMedPK MDCAT Mock 1
Physics
Wave Motion and Sound

A mass of 20 kg is lifted from the floor to a height of 2m in 4.9 sec. Calculate the power in Watts.

PreMedPK MDCAT Mock 1
Physics
Work, Power and Energy

Electric field lines:

PreMedPK MDCAT Mock 1
Physics
Electrostatics

If there are “n” capacitors each of capacity “C” connected in parallel to “V” volts source then energy stored is equal to

PreMedPK MDCAT Mock 1
Physics
Electrostatics

The path difference for the constructive interference is:

PreMedPK MDCAT Mock 1
Physics
Wave Motion and Sound

A body having translatory motion possesses _____ and _____. In the same way a body having rotatory motion possesses _______ and _______.

PreMedPK MDCAT Mock 1
Physics
Circular Motion and Momentum

A 100 kg golf ball is moving to the right with a velocity of 20 m/s. It makes a head on collision with an 8 kg steel ball, initially at rest. The two balls get stuck together. What will the velocity of these two balls after collision?

PreMedPK MDCAT Mock 1
Physics
Circular Motion & Momentum

A shock wave is produced due to an earthquake which makes the buildings move in the direction of the shock wave. Which progressive wave would this be?

PreMedPK MDCAT Mock 1
Physics
Wave Motion and Sound

The reciprocal of conductance is called:

PreMedPK MDCAT Mock 1
Physics
Current Electricity

A battery whose emf is 40 V has an internal resistance of 5 Ohms. If this battery is connected to a 15 Ohms resistor ‘R’, what will be the voltage drop across ‘R’:

PreMedPK MDCAT Mock 1
Physics
Current Electricity

Two railway trucks of masses m and 3m move towards each other in opposite directions with speeds 2v and v respectively. These trucks collide and stick together. What is the speed of the trucks after the collision?

PreMedPK MDCAT Mock 1
Physics
Forces and Motion
D)

Two radioactive samples ?1 and ?2 have half-lives 3 hours and 7 hours respectively. If they have the same activity at certain instant ?, what is the ratio of the number of atoms of ?1 to ?2 at instant ??

PreMedPK MDCAT Mock 1
Physics
Nuclear Physics

A galvanometer acting as a voltmeter will have a coil with ____.

PreMedPK MDCAT Mock 1
Physics
Current Electricity

When the anti nodes are all at their extreme displacements?

PreMedPK MDCAT Mock 1
Physics
Wave Motion and Sound

The minimum indivisible unit of charge is:

PreMedPK MDCAT Mock 1
Physics
Electrostatics

The current measuring part of the ammeter consists of a number of low resistors connected _____.

PreMedPK MDCAT Mock 1
Physics
Magnetism and Electromagnetic Induction

A car of mass 1200 kg initially at rest has been accelerated to a speed of 8 m/s in 16 meters. Average acceleration of the car is ______ m/s2? And force is _____ N?

PreMedPK MDCAT Mock 1
Physics
Forces and Motion

The sum of kinetic energy and the potential energy is always constant provided that _____ .

PreMedPK MDCAT Mock 1
Physics
Work, Power and Energy

In an A.C. generator, increase in number of turns in the coil does which of the following?

PreMedPK MDCAT Mock 1
Physics
Magnetism and Electromagnetic Induction

A sample of a radioactive element with an initial mass of 24 gm decayed to 3 gm in 36 minutes. How much of the original sample remained after the first 12 minutes?

PreMedPK MDCAT Mock 1
Physics
Nuclear Physics

The dimensions of momentum are the same as that of:

PreMedPK MDCAT Mock 1
Physics
Forces and Motion
Measurements

What is the speed of 2.0 kg metallic bob at the mean position of a simple pendulum, when released from its extreme position 0.5m high? (g = 10 ms-2)

PreMedPK MDCAT Mock 1
Physics
Work, Power and Energy

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:

PreMedPK MDCAT Mock 1
Physics
Forces and Motion

For a certain organ pipe, three successive resonance frequencies are observed at 425, 595, and 765 Hz. The speed of the sound in air is 300 m/s. The pipe is:

PreMedPK MDCAT Mock 1
Physics
Wave Motion and Sound

When a train whistling passes near you, a considerable change in the pitch of the sound is heard. When the train is moving away, the pitch of the sound _____ whereas the pitch of the sound _____ when the train is approaching.

PreMedPK MDCAT Mock 1
Physics
Wave Motion and Sound

There are three bulbs of 60W, 100W, and 200W. Which bulb has the thickest filament?

PreMedPK MDCAT Mock 1
Physics
Current Electricity

If electron passes through axis of solenoid the movement will be:

PreMedPK MDCAT Mock 1
Physics
Magnetism and Electromagnetic Induction

Projectile, when launched at 90 degree with respect to horizontal, its trajectory is

PreMedPK MDCAT Mock 1
Physics
Forces and Motion

Angle between radius vector and centripetal acceleration is

PreMedPK MDCAT Mock 1
Physics
Circular Motion and Momentum

Four wires of same material, the same cross-sectional area and the same length when connected in parallel give a resistance of 0.25 ohms. If the same four wires are connected is series the effective resistance will be?

PreMedPK MDCAT Mock 1
Physics
Current Electricity

Five words are shown below:

Farthest Universe Spontaneously Photon Infinite

These words can be used in the spaces P, Q, R, S and T to complete the sentences below.

The ___P____ is a stable particle and therefore it does not decay ___Q___ into any other particle. Its lifetime is therefore ____R____ so long it does not undergo interaction with other particles and is why photons are supposed to be reaching our earth from ___S____ distances of the universe. Thus most of our information regarding the ___T____ is carried by photons.

PreMedPK MDCAT Mock 1
Physics
Nuclear Physics

If the engine power is 3.3kW and it is 60% efficient, how much water will it pump in 5s from a height of 10m?

PreMedPK MDCAT Mock 1
Physics
Work, Power & Energy

The flux through a surface will be zero when angle between E and △A is:

PreMedPK MDCAT Mock 1
Physics
Electrostatics

Ali punches a mattress and then punches a wall with the same force. Why does Ali experience more pain while striking the wall?

PreMedPK MDCAT Mock 1
Physics
Forces and Motion

The ratio of angular speed of moon around the Earth to its angular speed about its own axis is:

PreMedPK MDCAT Mock 1
Physics
Circular Motion and Momentum

If alpha, beta, and gamma rays carry the same momentum, which has the longest wavelength?

PreMedPK MDCAT Mock 1
Physics
Nuclear Physics

A uniform horizontal footbridge is 12 m long and weighs 4000 N. It rests on two supports X and Y as shown. A man of weight 600 N is at a distance of 4 m from support X. What is the upward force on the footbridge from support X?

PreMedPK MDCAT Mock 1
Physics
Forces and Motion

If a wheel of radius r turns through an angle of 30°, then the distance through which any point on its rim moves is?

PreMedPK MDCAT Mock 1
Physics
Circular Motion and Momentum

One complete circle is equal to:

PreMedPK MDCAT Mock 1
Physics
Circular Motion and Momentum

When the output power equals to one-half of the input power, efficiency of the transformer becomes:

PreMedPK MDCAT Mock 1
Physics
Work, Power and Energy

Two positive point charges Q1 = 16 microCoulombs and Q2 = 4 micro Coulombs are seperated in a line by a distance of 3 meters. Find the spot on the line between the charges where the electric field is zero.

PreMedPK MDCAT Mock 1
Physics
Electrostatics

A potential difference of 10V is applied across a conductor whose resistance is 2.5 Ohms. What is the value of current flowing through it?

PreMedPK MDCAT Mock 1
Physics
Current Electricity

If magnetic field is given by B= (2i + 3j -8k) and a loop of area 10 sq.m is placed in field in y-z plane, the maximum flux will be:

PreMedPK MDCAT Mock 1
Physics
Magnetism and Electromagnetic Induction

Which of the following have the same number of molecules?

PreMedPK MDCAT Mock 1
Chemistry
Introduction to Fundamental Concepts of Chemistry

How many molecules are there in 2.1 moles of CO₂:

PreMedPK MDCAT Mock 1
Chemistry
Introduction to Fundamental Concepts of Chemistry

The total number of neutrons in 5g of H2O are:

1 NA = 6.023 x 1023

PreMedPK MDCAT Mock 1
Chemistry
Alcohols, Phenols and Ethers

In the reaction;

H2 + CO2 H2O + CO

The decrease in the concentration of reactants and products cause the equilibrium to shift:

PreMedPK MDCAT Mock 1
Chemistry
Chemical Equilibrium

At equilibrium the concentration of reactants and product become:

PreMedPK MDCAT Mock 1
Chemistry
Chemical Equilibrium

Consider the following reaction

N2(g) + O2(g) 2NO (g) Kc- 0.1 at 2000 C

If the original concentration of N2 and O2 were 0.1 M each. Calculate the concentrations of NO at equilibrium.

PreMedPK MDCAT Mock 1
Chemistry
Chemical Equilibrium

The structure of Xenon trioxide is shown below:

With reference to the valence shell electron pair repulsion theory (VSEPR), the shape of XeO3 is:

PreMedPK MDCAT Mock 1
Chemistry
Chemical Bonding

When methylbenzene is treated with bromine in the presence of a catalyst, a mixture of two monobromo isomers is formed. What are the structure of these two isomers?

PreMedPK MDCAT Mock 1
Chemistry
Hydrocarbons

What is the value of molecularity and order of SN1 reactions?

PreMedPK MDCAT Mock 1
Chemistry
Reaction Kinetics

Primary Alcohol is produced by reactions of Grignard’s reagent with _________ followed by hydrolysis in an acidic medium.

PreMedPK MDCAT Mock 1
Chemistry
Alcohols, Phenols and Ethers

A solid melts sharply just above 100 degree centigrade. it does not conduct electricity even when molten. It has weak Vander waal’s forces. What is the structure of the solid most likely to be?

PreMedPK MDCAT Mock 1
Chemistry
States of Matter – Gases, Liquids and Solids

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

PreMedPK MDCAT Mock 1
Chemistry
Alcohols, Phenols and Ethers

The unit of the rate constant is the same as that of the rate of reaction in:

PreMedPK MDCAT Mock 1
Chemistry
Reaction Kinetics

CO2 and SO2 both are tri-atomic molecules but heat of vaporization of SO2 is greater than that of CO2 due to:

PreMedPK MDCAT Mock 1
Chemistry
States of Matter – Gases, Liquids and Solids

Which of the following compounds are added to ethanol to make it unfit for drinking?

PreMedPK MDCAT Mock 1
Chemistry
Alcohols, Phenols and Ethers

In contact process, to which substance adequate quantities of water is added to convert it to sulphuric acid?

PreMedPK MDCAT Mock 1
Chemistry
Chemical Equilibrium

In a zero-order reaction, the rate is independent of:

PreMedPK MDCAT Mock 1
Chemistry
Reaction Kinetics

1 mole of N2O4 (g) was placed in an empty 1 dm^3 container and allowed to reach equilibrium according to the following equation:

N2O4(g) 2NO2(g)

At equilibrium, x mole Of N2O4 (g) had dissociated. What is the value of the equilibrium constant, Kc, at the temperature of the Experiment?

PreMedPK MDCAT Mock 1
Chemistry
Chemical Equilibrium

Linear combination of atomic orbitals (LCAO) results in the formation of:

PreMedPK MDCAT Mock 1
Chemistry
Chemical Bonding

The product of the concentrations of each ion in a saturated solution of a sparingly soluble salt at 298 K, raised to the power of their relative concentrations is:

PreMedPK MDCAT Mock 1
Chemistry
Chemical Equilibrium

In which of the following reagent Cupric citrate complex is formed?

PreMedPK MDCAT Mock 1
Chemistry
Aldehydes and Ketones

Which of the following statement about Avogadro’s hypothesis is correct?

PreMedPK MDCAT Mock 1
Chemistry
Introduction to Fundamental Concepts of Chemistry

If the reaction, P + Q → R + S, is described as being of zero-order with respect to P, it means that:

PreMedPK MDCAT Mock 1
Chemistry
Reaction Kinetics

What does the symbol, || , means ?

PreMedPK MDCAT Mock 1
Chemistry
Electrochemistry

20 cm3of a gaseous hydrocarbon was completely burnt in an excess of oxygen 60 cm3of carbon dioxide and 40 cm3of water vapours were formed, all volumes being measured at the same temperature and pressure. What is the formula of the hydrocarbon?

PreMedPK MDCAT Mock 1
Chemistry
Hydrocarbons

In chemistry the work is generally ___.

PreMedPK MDCAT Mock 1
Chemistry
Thermochemistry

If 4.6 gm of ethyl alcohol and 6.0 gm of acetic acid is kept at a constant temperature until equilibrium was established, 2.0 gm of unused acetic acid were present. What is the Kc?

PreMedPK MDCAT Mock 1
Chemistry
Chemical Equilibrium

According to valence shell electron pair repulsion theory, the repulsive forces between the electron pair of central atom of molecule are in the order:

PreMedPK MDCAT Mock 1
Chemistry
Chemical Bonding

Precipitation occurs when the product of ionic concentrations is:

PreMedPK MDCAT Mock 1
Chemistry
Chemical Equilibrium

When CH3 is attached to the benzene ring, it makes the ring a:

PreMedPK MDCAT Mock 1
Chemistry
Hydrocarbons

Which of the following alcohol does not get oxidized when it reacts with K₂Cr₂O₇/H₂SO₄?

PreMedPK MDCAT Mock 1
Chemistry
Alcohols, Phenols and Ethers

The thermal energy at constant pressure is called:

PreMedPK MDCAT Mock 1
Chemistry
Thermochemistry

The given diagram shows the enthalpy changes during a chemical reaction.

PreMedPK MDCAT Mock 1
Chemistry
Thermochemistry

Identify the common name of the following compound:

CH₃CH₂COCH₂OH

PreMedPK MDCAT Mock 1
Chemistry
Aldehydes and Ketones
Fundamental Principles of Organic Chemistry

The Unit cell with crystallographic dimensions a = b ≠c ,α = β = γ = 90 degrees is:

PreMedPK MDCAT Mock 1
Chemistry
States of Matter – Gases, Liquids and Solids

The influence of temperature on reaction rate is predicted by:

PreMedPK MDCAT Mock 1
Chemistry
Reaction Kinetics

Which type of isomerism depends on the distribution of carbon atoms on each side of the functional group?

PreMedPK MDCAT Mock 1
Chemistry
Hydrocarbons

The amount of energy released by absorbing an electron in the valence shell is:

PreMedPK MDCAT Mock 1
Chemistry
Atomic Structure

The only thing which can predict that if the reaction will be spontaneous or nonspontaneous is:

PreMedPK MDCAT Mock 1
Chemistry
Thermochemistry

Consider the following reaction:

R―CHO + 2[Ag(NH3)2]OH → R―COONH4 + 2Ag + 2NH3 + H2O This reaction represents one of the following tests.

PreMedPK MDCAT Mock 1
Chemistry
Aldehydes and Ketones

Which of the following is an insecticide?

PreMedPK MDCAT Mock 1
Chemistry
Alcohols, Phenols and Ethers
D)

An intermolecular force of attraction X is relatively stronger than the other intermolecular forces. It stabilizes alpha-helix and Beta-pleated sheets of proteins. The double helical structure of DNA is also stabilized by this force of attraction. Identify X.

PreMedPK MDCAT Mock 1
Chemistry
Chemical Bonding

If 9.8 g of sulfuric acid is dissolved in excess quantity of water, it will yield ____ moles of hydrogen ion (H+) and _____ moles of sulphate ions (SO42-).

PreMedPK MDCAT Mock 1
Chemistry
Introduction to Fundamental Concepts of Chemistry

Name the orbital n = 5; l = 2; m = 0.

PreMedPK MDCAT Mock 1
Chemistry
Atomic Structure

The value K for H2(g) + CO2(g) H2O(g) + CO(g) is 1.80 at 1000 C. If 1.0 mole of each H2 and CO2 are placed in 1 litre flask, the final equilibrium concentration of CO at 1000 C will be:

PreMedPK MDCAT Mock 1
Chemistry
Chemical Equilibrium

The equation shows the reaction between element X and dilute hydrochloric acid.

X(s) + 2HCl(aq) -> XCl2(aq) + H2(g)

What types of bonding is present in element X and in compound XCl2?

PreMedPK MDCAT Mock 1
Chemistry
Chemical Bonding

Red lead is:

PreMedPK MDCAT Mock 1
Chemistry
s and p Block Elements

If we move down the electrochemical series:

PreMedPK MDCAT Mock 1
Chemistry
Electrochemistry

When does a gas deviate the most from its ideal behavior ?

PreMedPK MDCAT Mock 1
Chemistry
States of Matter – Gases, Liquids and Solids

A sample of 0.7 moles of metal ‘M’ reacts completely with an excess of fluorine to form 45 g of MF2. How many moles of F are present in it?

PreMedPK MDCAT Mock 1
Chemistry
Introduction to Fundamental Concepts of Chemistry

The table shown below gives the bond dissociation energies of single covalent bonds of carbon atoms with elements A, B, C, and D.
Which of the following has the smallest atom?

PreMedPK MDCAT Mock 1
Chemistry
Chemical Bonding

When two moles of H2and one mole of O2react to form H2O, 484 KJ heat is evolved. What is Δ Hffor one mole of H2O?

PreMedPK MDCAT Mock 1
Chemistry
Thermochemistry

What is the volume in cm3 of 3.01 x 10^23 molecules of O2 gas at S.T.P.?

PreMedPK MDCAT Mock 1
Chemistry
States of Matter – Gases, Liquids and Solids

In an adiabatic process:

PreMedPK MDCAT Mock 1
Chemistry
Thermochemistry

Goblets cells are:

PreMedPK MDCAT Mock 1
Biology
Gaseous Exchange

First step of viral replication is:

PreMedPK MDCAT Mock 1
Biology
Bio-diversity | Variety of Life

Eukaryotes can share which of the following structures with prokaryotes:

PreMedPK MDCAT Mock 1
Biology
Cell Structure and Function

The process by which various components of cells including its organelle can be isolated is called:

PreMedPK MDCAT Mock 1
Biology
Cell Structure and Function

In humans, ovaries after birth contain:

PreMedPK MDCAT Mock 1
Biology
Reproduction

The diagram shows the ultrastructure of a chloroplast as seen in section. What are the functions of P, Q, and R?

PreMedPK MDCAT Mock 1
Biology
Bioenergetics

Viroids lacks?

PreMedPK MDCAT Mock 1
Biology
Bio-diversity | Variety of Life

Which of the following hormones acts on the uterus wall for thickening?

PreMedPK MDCAT Mock 1
Biology
Reproduction

Which of the following statement is incorrect about skeletal muscle fibres?

PreMedPK MDCAT Mock 1
Biology
Support and Movement

Which of the following is false regarding the bacterial membrane?

PreMedPK MDCAT Mock 1
Biology
Kingdom Prokaryote

FADH2 is produced during which step of the Krebs cycle?

PreMedPK MDCAT Mock 1
Biology
Bioenergetics

Which of the following is true of both bacterial conjugation and meiosis?

PreMedPK MDCAT Mock 1
Biology
Kingdom Prokaryote

In ‘Complete Dominance’:

PreMedPK MDCAT Mock 1
Biology
Variation and Genetics

The type of gene interaction in which the effect caused by a gene at one locus interfere with the effect caused by another gene at another locus is known as:

PreMedPK MDCAT Mock 1
Biology
Variation and Genetics

For respiratory metabolism, a bacterial cell membrane contains:

PreMedPK MDCAT Mock 1
Biology
Kingdom Prokaryote

The abundant inhibitory neurotransmitter found in the CNS is called?

PreMedPK MDCAT Mock 1
Biology
Coordination and Control

Which one of the following is a storage plastid?

PreMedPK MDCAT Mock 1
Biology
Cell Structure and Function

What do the two peaks in the action spectrum represent?

PreMedPK MDCAT Mock 1
Biology
Bioenergetics

They serve as a scaffold for formation of higher order chromatin structure:

PreMedPK MDCAT Mock 1
Biology
Cell Structure and Function

Enzymes are produced in inactive form by the cell and enclosed in which of the following?

PreMedPK MDCAT Mock 1
Biology
Enzymes
Cell Structure and Function

Read the code mentioned in the following picture and arrange the sequence of all five codons in which leucine is at 3rd position, while isoleucine is in 4th position. Keep in mind that CUU is the code for leucine, AUU for isoleucine and CAA or glutamine.

PreMedPK MDCAT Mock 1
Biology
Variation and Genetics

The following results of a cross between two individuals shown in the picture is:

PreMedPK MDCAT Mock 1
Biology
Variation and Genetics

The most abundant intracellular free nucleotide is _____.

PreMedPK MDCAT Mock 1
Biology
Biological Molecules

Oxaloacetate combines with which molecule to enter the krebs cycle again?

PreMedPK MDCAT Mock 1
Biology
Bioenergetics

PS I has chlorophyll a molecule which absorbs maximum light of __ nm?

PreMedPK MDCAT Mock 1
Biology
Bioenergetics

What contributes to genetic variation during human reproduction?

PreMedPK MDCAT Mock 1
Biology
Variation and Genetics

Which of the following statements is incorrect?

PreMedPK MDCAT Mock 1
Biology
Enzymes

The difference in photosynthesis spectrum and action spectrum occurs due to?

PreMedPK MDCAT Mock 1
Biology
Bioenergetics

Bacteriochlorophylls does not include which of the following?

PreMedPK MDCAT Mock 1
Biology
Bioenergetics

A student of chemical engineering mistakenly engulfed the toxic compound “A” which was a potent inhibitor of a certain enzyme. He was immediately brought to a hospital where the doctor injected, intravenously, substrate “B” to minimize the toxic effect of Compound A. His life was saved from serious damage. The treatment method shows that compound A was a ______ inhibitor.

PreMedPK MDCAT Mock 1
Biology
Enzymes

People who migrated from plains to hills six months back _______________.

PreMedPK MDCAT Mock 1
Biology
Gaseous Exchange

Cytochromes are electron transport intermediates containing?

PreMedPK MDCAT Mock 1
Biology
Bioenergetics

In electron transport chain, ATP synthesis takes place when electrons move from:

PreMedPK MDCAT Mock 1
Biology
Bioenergetics

Tropical plants such as sugarcane show high efficiency of CO2 fixation because of:

PreMedPK MDCAT Mock 1
Biology
Bioenergetics

Which of the following cell organelles involved in the synthesis of cell wall and middle lamella?

PreMedPK MDCAT Mock 1
Biology
Cell Structure and Function

Which combination describes a triglyceride?

PreMedPK MDCAT Mock 1
Biology
Biological Molecules

Starch is present in tubers, fruits, and grains but absent in animal cells. Instead, animals have a substance stored in liver and muscles known as:

PreMedPK MDCAT Mock 1
Biology
Biological Molecules

According to the fluid mosaic model of cell membrane, which zone is embedded inside?

PreMedPK MDCAT Mock 1
Biology
Biological Molecules

Which of the statements correctly describes why ions are unable to cross the plasma membrane without channel proteins?

PreMedPK MDCAT Mock 1
Biology
Cell Structure and Function

Four plants are present in different environmental conditions. Plant A is present in a warm climate with continuous rainfall, plant B is present in a cool forest, plant C is present in a warm climate with little breeze, while plant D is present in a warm climate with high wind speed. Which one of the above plants will have the highest rate of transpiration?

PreMedPK MDCAT Mock 1
Biology
Gaseous Exchange

The types of gametes produced by two pairs of chromosomes can be?

PreMedPK MDCAT Mock 1
Biology
Reproduction

Glucose →2 pyruvic acid + 2H2O

2ADP + 2Pi → 2 ATP

2NAD + 4H → 2NADH + 2H+

These three reactions collectively constitute ______.

PreMedPK MDCAT Mock 1
Biology
Bioenergetics

Pancreas produces secretory granules that help in digestion. These granules, after passing through Endoplasmic reticulum, are pinched off from _____ surface of Golgi apparatus?

PreMedPK MDCAT Mock 1
Biology
Cell Structure and Function

Which bones meet at the elbow joint and what kind of movement

Do they allow it?

PreMedPK MDCAT Mock 1
Biology
Support and Movement

Which statement correctly outlines some of the main events in photosynthesis?

PreMedPK MDCAT Mock 1
Biology
Bioenergetics

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

PreMedPK MDCAT Mock 1
Biology
Enzymes

Shape of the maturing phase of the golgi apparatus is?

PreMedPK MDCAT Mock 1
Biology
Cell Structure and Function

In human females, oocytes are held in the second metaphase until ________.

PreMedPK MDCAT Mock 1
Biology
Reproduction

When a nerve impulse jumps from one node of Ranvier to the next in a myelinated neuron, it’s called __________.

PreMedPK MDCAT Mock 1
Biology
Coordination and Control

Read the passage below to answer the question:

Haemophilia is a disorder in which blood fails to clot. Saad, a male haemophiliac, marries Sara, a normal woman and together they have four children, two boys (Ahmed and Ali) and two girls (Alia and Ayesha). None of the children display the symptoms of Haemophilia.

Ahmed, Ali, Ayesha, and Ali all marry normal individuals and have children. None of Ahmed’s or Ali’s children, male or female, display symptoms of haemophilia, but the sons of Alia and Ayesha display symptoms of haemophilia while the daughters of Alia and Ayesha do not.

Which of the following best explains the reason that Ahmed, Ali, Ayesha and Alia do not display symptoms of haemophilia, even though their father, Saad, is a haemophiliac.

PreMedPK MDCAT Mock 1
Biology
Variation and Genetics

Growth movement caused in response to gravitational stimulus is called:

PreMedPK MDCAT Mock 1
Biology
Support and Movement

What are labelled phases A, B, and C in the below given sigmoidal growth curve?

PreMedPK MDCAT Mock 1
Biology
Kingdom Prokaryote

Acyl-glycerols like fats and oils are esters formed by condensation reaction between:

PreMedPK MDCAT Mock 1
Biology
Biological Molecules

What happens to the volume of the thorax and the air pressure in the lungs during breathing in?

PreMedPK MDCAT Mock 1
Biology
Gaseous Exchange

A 25 years old female with chronic fatigue was diagnosed with iron deficiency anemia and low blood count. What is the cause of her fatigue?

PreMedPK MDCAT Mock 1
Biology
Biological Molecules

Which of the following organisms have the greatest problem with photorespiration?

PreMedPK MDCAT Mock 1
Biology
Bioenergetics

When phenotype of a heterozygote is in between the phenotypes of both the homozygous parents, it is called:

PreMedPK MDCAT Mock 1
Biology
Variation and Genetics

Bacteria plays an important role in:

PreMedPK MDCAT Mock 1
Biology
Kingdom Prokaryote

Three of the following pairs of the human skeletal parts are correctly matched with their respective inclusive skeletal category and one pair is not matched. Identify the nonmatching pair.

PreMedPK MDCAT Mock 1
Biology
Support and Movement

Pharynx leads air into _____ through glottis.

PreMedPK MDCAT Mock 1
Biology
Gaseous Exchange

Carbohydrates are commonly found as starch in plants storage organs. Which of the following five properties of starch make it useful as a storage material?
(1) Easily translocated
(2) Chemically non­reactive
(3) Easily digested by animals
(4) Osmotically inactive
(5) Synthesized during photosynthesis
The useful properties are?

PreMedPK MDCAT Mock 1
Biology
Biological Molecules

Enzyme-catalyzed modifications are?

PreMedPK MDCAT Mock 1
Biology
Enzymes

Menstrual cycle can be divided into:

PreMedPK MDCAT Mock 1
Biology
Reproduction

Choose the correct combinations of labeling the carbohydrate molecule involved in the Calvin cycle.

PreMedPK MDCAT Mock 1
Biology
Bioenergetics

Choose the correct combinations of labeling the carbohydrate molecule involved in the Calvin cycle.

PreMedPK MDCAT Mock 1
Biology
Bioenergetics

In cats, the genes controlling coat-color are co-dominant (incompletely dominant) and are carried on the X chromosomes. When a black female was mated with a ginger male the resulting litter consisted of black male and tortoise-shell female kittens. What phenotypic ratio would be expected in the F2 generation?

PreMedPK MDCAT Mock 1
Biology
Variation and Genetics

Read the passage below to answer the question:

Hemophilia is a disorder in which blood fails to clot. Saad, a male hemophiliac, marries Sara, a normal woman and together they have four children, two boys (Ahmed and Ali) and two girls (Alia and Ayesha). None of the children display the symptoms of Hemophilia. Ahmed, Ali, Ayesha, and Ali all marry normal individuals and have children. None of Ahmeds or Ali’s children, male or female, display symptoms of hemophilia, but the sons of Alia and Ayesha display symptoms of hemophilia while the daughters of Alia and Ayesha do not.

Which of the following individuals are heterozygous for hemophilia:

PreMedPK MDCAT Mock 1
Biology
Variation and Genetics

Cyanide for enzymes act as:

PreMedPK MDCAT Mock 1
Biology
Enzymes

The diagram shows the inheritance of haemophilia in a family.

What is the genotype of person 7?

PreMedPK MDCAT Mock 1
Biology
Variation and Genetics

Altimeter: height (analogy)

PreMedPK MDCAT Mock 1
English
Key Vocabulary

Select the NEAREST CORRECT MEANING of the given word:
IMPETUOUS

PreMedPK MDCAT Mock 1
English
Key Vocabulary

Identify the word or phrase that needs to be changed for the sentence to be correct. The bus stopped too take up three or four people who were waiting by Post office. No error

PreMedPK MDCAT Mock 1
English
Identify errors in sentence

Choose the correct sentence from the following:

PreMedPK MDCAT Mock 1
English
Grammar and Punctuation

Choose the right option to complete the following sentences.

Irony can, after a fashion, become a mode of escape: to laugh at the terrors of life is in some sense to _______ them.

PreMedPK MDCAT Mock 1
English
Tenses and Sentence Structure