UHS MDCAT 2023

Which of the following is the main point of Darwinism?

According to evolutionary studies. prokaryotes may have arisen around:

The enzyme which can work on ph 7 of the medium is?

Which enzyme is different from others?

Competitive inhibhnors are _?

The active sites of enzymes are composed of?

NAD is an important?

What is true about oxytocin?

In a typical nerve. the action potential duration is:

During resting membrane potential condition:

The value of active membrane potential of the neuron is:

The chemical messengers that transmit action potential across the synapse in the form of chemicals are?

The pressure receptors that receive deep pressure stimulus in human body are called.

Cells of different types can be distinguished on the basis of surface.

Mitosis, a type of cell division is observed in?

Which of the following type of organs are supposed to be functional in ancestral species rather than in present day species:

Descending aorta is bifurcated into two vessels which on further division from femoral artery that supply blood to high muscles of legs:

The final destination of lymph is:

ABO blood group is controlled by more than two alleles in a population. This shows that ABO blood group is an example of:

According to Mendel Law of Segregation, the one individual out of four in F₂ generation had phenotype that failed to express in generation.

Test cross is made to check the genotype of a trait. Which of the following crosses is a test cross?

The term menopause means:

Production of Follicle-stimulating hormone (FSH) and Luteinizing Hormone (LH) from the pituitary gland of female is controlled by:

Cartilage is a type of which tissue?

Irregular striations and involuntary control is related to?

The cell membrane of muscle cell is:

During sliding of actin filaments, ATP is used for?

To study sex linkages in Drosophila, Morgan mated white eyed males with wild type red eyed females. What will be the phenotype of offspring?

Enteron is the characteristic feature of:

The body of which is called metamerically segmented?

Excretion in Planaria takes place by ?

Four chambered heart with right systemic arch only is present in?

The movement of water to lower solute concentration area through a semipermeable membrane is?

The _ describes how water and dissolved chemicals are carried through the cell wall and intercellular gaps of plants.

Feeding by living in or on the other organism (host) belonging to different species is called?

What of the following virus contains single stranded DNA?

Which one of the following is X Linked Dominant disorder?

Only those genes can assort independently whose loci are on:

Smooth muscles are found in all mentioned below except

The method of bringing oxygenated air into contact with a gas exchange surface is called?

Number of layers of cell wall in Gram positive bacteria is:

Helicobacter pylori is an example of:

Bacterial cell have ability to maintain its shape through

Which of the following is an example of spiral shaped bacteria?

All the following are disinfectants to control bacterial growth except:

The function of hyaluronidase enzyme is:

In human females, what is the small, pear-shaped, muscular, distensible, sac-like organ where gestation takes place?

Virus is what type of agent?

The molecules used to control virus during infection of animal cells are:

The provirus of HIV is structurally and chemically made up of?

Which of the following is used in baking?

Which is the major event in electron transport chain?

Out of 36 ATPs, how many are produced in electron transport chain?

The major enzymes involved in transfer of phosphate group from ATP to Glucose is:

_ forms almost three-fourth of the body by weight

Energy is by the breakdown of complex molecules into simpler ones, such reactions are called catabolic reactions

Biologically, plays key roles in maintaining the integrity of lipid bilayer membranes.

The specific heat of vaporization of water plays an important role in the regulation of heat produced by

Which type of bond must be broken for water to vaporize?

Which statement is true about regarding both starch and cellulose?

Most of the monosaccharides form a ring structure when in solution. For example ribose will form a five cornered ring known as

Number of major layer/layers of cell wall in gram positive bacteria is/are:

Cyclosis and amoeboid movements are due to:

Proteins and lipids are modified into Glycoproteins & Glycolipids by which cell organelle?

Which structure of prokaryotic cell will play the role of mitochondrion?

Cell wall of prokaryotic cell is composed of:

The labour pains to expel fetus are due to action of oxytocin on:

Which of the following transition metal show 3d⁵ configuration in its +2-oxidation state?

Which of the following reagents can be used to distinguish between 1-Pentyne and 2-Pentyne?

In SN₁ reactions the correct order of reactivity of alkyl halide is?

What is the IUPAC name of di-isopropyl ketone?

The appearance of a silver mirror in Toliens test indicates the presence of which of the following?

Competitive inhibitors stop an enzyme from working by:

If phenol is treated with 3 moles of conc. HNO₃ in the presence of H₂SO₄ .

What will be the product?

When 6d orbital is filled, the entering electron goes into?

Which element has the ground state electronic configuration of 1s², 2s², 2p⁶, 3s², 3p⁶?

What is the proton (atomic number) of an element that has four unpaired electrons in its ground state?

Which one of the following gases has the lowest density under room conditions?

The process of heat flow between hotter and colder gases remains continued until all the molecules have equal

What is the unit of heat capacity?

The addition reaction of 2-butene with HBr produces?

Under suitable conditions alkanes cannot undergo _ reactions?

A compound of phosphorus oxide has 43.6% of Oxygen. Its empirical formula is?

Which element is used as standard to determine atomic mass of an element?

The average weight of atoms of an element compared to the weight of one atom of _ is called atomic weight.

The same moles of H₂, N₂, and O₂ are present in 0.1 cc volume at STP. Which one has the greatest number of molecules:

In anisotropic crystals which property do not change with the change in direction of crystalline structure?

In metals, why electric conductivity decreases with the increase of temperature?

Which oxyacid of halogen is strong oxidizing agent?

Alkylbenzene is formed when benzene is treated with an alkyl halide in the presence of anhydrous aluminum chloride. Identify the type of reaction.

The increasing stability order of the following compounds

(1) CH₃CH₂CH₂⁺

(2) (CH₃)₃C⁺

(3) CH₃CH₂CH⁺CH₃ are ?

When 2-bromopropane reacts with Sodium ethoxide, the major product is/are?

Propanone can be prepared from propyne by:

If carboxylic acid and ketone groups C=0 are present in a chain then final name will be given as

Mr. Khan mix acetic acid with thionyl chloride. Which product is obtained?

Dehydration of alcohol gives which of the following product in the presence of H₂SO₄ at 140?

Complete oxidation of alcohol gives which of the following?

The bond energy of hydrogen in H₂ molecule is:

What are vinyl alcohol and acetaldehyde:

0xidation number of free magnesium is?

Which of the following has the highest atomic radius in its period?

The electronic configurations of some elements are given below. Recognize the element that belongs to group IIIA

All alkali metals react with chlorine gas to form white metal chlorides salt. The metal chlorides salt formed is:

Which of the following is correct electronic configuration of iron (II) ion (atomic no. of Fe is =26)?

Which of the functional group are present in ethyl acetate?

What is the molecular formula of pyridine molecule?

Identify which method is used to prepare Alkynes?

Which of the following electronic configuration is correct for ?

The following formula can be used to determine the resistance of a length of conductor . In the formula, the symbol p stands for the:

The resistance of the wire varies inversely as:

A capacitor of capacitance 'C' has a charge 'Q' and stored energy is W. If the charge is increased to '2Q'. The stored energy will be:

To store the electric charge the ultra-capacitors use _______ effect.

What is the potential difference between two points in an electric field if it takes 600 J of energy to move a charge of 2 C between these two points?

A charged particle moves in a uniform electric field between two oppositely charged parallel metal plates. To calculate the force acting on the particle due to the electric field, which quantity is not required?

Gauss law cannot be used to find which of the following quantity?

Electric field intensity inside a hollow charged sphere is:

As per Coulomb's law, the force of attraction or repulsion between two-point charges is directly proportional to the:

For an ideal gas equation PV= nRT, the dimensions of Real Gas Constant R are:

A distant star is receding from the Earth with a speed of 1.40 x 10⁷ m/s. It emits light of frequency 4.57 x 10¹⁴ H_z. The speed of light is 3.0 x 10⁸ m/s. The Doppler effect formula can be used with light waves. what will be the frequency of this light when detected on Earth?

The speed of sound in an ideal gas depends upon:

If transverse waves are passing through medium, then particle of medium:

When a wave goes from one medium to another, there is a no change in the:

Wave trough refers to the:

First law of thermodynamics concerns with the conservation of

An ideal gas has molar specific heat Cp at constant pressure. When the temperature of n moles is increased by AT the increase in the internal energy is:

The ohmmeter of a portable digital multi meter need:

A wire of uniform area of cross-section A', length 'L', and resistance R is cut into two equal parts. What will happen to the resistivity of each part?

If 0.5 T field is applied over an area of 2-meter square which lies at an angle of 60 degree with the field, then the resulting flux will be:

The magnitude of magnetic force will be maximum on current carrying conductor in uniforrn magnetic field if conductor is placed?

In principle, the transformer consists of two coils of copper, electrically insulated from each other, wound on the same?

In Compton effect, the incident photon when compared to the scattered photon is of:

Which of the following is the longest wavelength of radiation for the Paschen series?

Which of the following is the correct definition of variable velocity?

Which of the following is the fractional change in resistance per kelvin?

According to maximum power transfer theorem, which of the following is the max power delivered by the battery to the output?

Velocity selector will select only those charge particles whose velocity is given by:

The induced emf produced in the coil is sometimes called as?

Voltage has the same units as that of?

Working principal of magnetic levitation train is according to?

The expression for the emf produced by A.C generator is?

For the positive half cycle i.e., 0 -> T/2, the diode D:

The process of ejection of loosely bound electrons from a certain photo sensitive surface by absorption of photon is called:

In Compton effect, a photon of a certain wavelength collides with a stationary electron. The wavelength of the emitted photon is:

The Balmer series of hydrogen is important because it:

The SI unit of equivalent dose is:

The decay rate of radioactive substance is:

The relation between gray and rad is given as: 1 Gy = ______ rad

The velocity-time plot for a moving particle shows a straight line. This means:

A man is in a car that is moving with the velocity of 36km/hr.His speed with respect to the car

On which car there is resultant force?

If two equal masses are in motion with same individual speeds, we can conclude that

The work done by a variable force can be found by dividing the:

Two bodies with kinetic energies in the ratio of 4: 1 are moving with equal linear momentum. The ratio of their masses is:

A fisherman lifts a fish of mass 250 g from rest through a vertical height of 1.8 m. The fish gains a speed of 1.1 m/s. What is the energy gained by the fish?

One radian is analogous to:

In the displacement-time graph, if the slope is constant then the velocity is

An 8.0-kg box slides along a horizontal frictionless floor at 3 m/s and collides with a relatively massless spring that compresses 12 cm before the box comes to a rest. Calculate the retarding force of the spring.

The circular line has a fix distance from _______?

If a particle is moving with uniform circular motion, then:

0ne degree is equal to:

An observer standing near the sea shore observes 54 waves per minute. If the wavelength of the water wave is 10m then the velocity of water wave is:

If the length of second pendulum becomes four times, then its time period will become:

The quantity ∆φ/∆t has the same units as that of?

Choose the sentence that is grammatically correct:

Choose the correct option.We felt as if the ground was _ beneath our feet.

A few years ago, it _ that human beings do not belong to this earth.

A shoal of fish _ killed by the fishermen.

At last the fly was _. The most appropriate word to be filled in is:

Choose the similar meaning of the bracketed word. (Providentially), his mind was not injured.

A carpenter carves _ on cab doors. Choose the right word to fill in the blank.

_ methods don't work. Choose the correct option:

We just _ a game of tennis.

The pen is expensive; still I _ it.

Punctuate the given sentence correctly. My father is Chairman of the Committee on Internal Relations he also heads the Discipline Committee.

Which of the following sentences is correct?

Right after the Civil War, many distraught soldiers made their way West to find fame and fortune. Some could not go home because there were no homes to go to. The war had devastated them. One young man, Will Goodlad, made his fortune in the hills of Colorado. He found gold in a little river near Grand Junction. His fortune was short lived, however. In 1875, he declared bankruptcy and returned to the land of his birth- the Piedmont of South Carolina. For which side did Will fight during the War?

_ so many people been out of work as today. Which part is the most appropriate to be filled in the blank?

Spot the error out of the bracketed words. We try to speak (with) (one another) (but) (convey) nothing.

In winter, the days and nights is cold. Choose the part of the sentence that carries error:

Choose the sentence that is grammatically correct.

Choose the correct option:

We felt as if the ground was __________ beneath our feet.

All children are silly people. Some silly people are rich people. All rich people are big shots. Which of the following conclusions are NECESSARILY TRUE? CONCLUSIONS: I. Some silly people are children. II. Some rich people are children. III. Some silly people are big shots.

Read the following and choose the correct answer:

"X, Y and Z are three whole numbers less than 31 but greater than 23. X is a prime number. Y is the largest odd number smaller than 35. Z is the smallest even number?

Observe the pattern and select the next term in the sequence: SSSSS, SSRSS, SRQRS, RQPQR

Read the following statement, assuming everything in it to be true. Then decide which of the given suggested courses of action logically follow and are worth pursuing. Statement: Your toddler drops and breaks a glass by genuine accident. Courses of Action: I. yell at them to be more careful with things made out of glass. II. Punish them to make sure they remember to be extra careful next time.

Read the following statements and identify the best cause and effect relation. I. State P started providing multiple rehabilitation schemes, like free education, job search help and help groups for addicts, etc. over the past year. II. Crimes rates for state P have steadily decreased over the past year.

Read the passage and the following statements below. Then choose the correct Option, basing your answer only on the information provided.Pakistan is rich in wildlife and culture. It is home to many sorts of wildlife, from the Ibex to the Indus River Dolphin; and people from most countries in the world have made their home here.Statements:I. Pakistan is a rich country.II. People from all nationalities of the world live in Pakistan.III. Pakistan is home to at least one dolphin species.