PMC Practice Test 2 2021

A neural pathway that controls an action reflex is called:

Proteins and lipids are converted into glycolipids and glycoproteins by adding carbohydrates by?

What type of virus is the smallpox virus?

Purple non-sulphur bacteria is an example of which of the following?

Which of the following is not a true characteristic of spermatogonia?

The part of brain that coordinates skeletal muscle movements is:

Who discovered the bacteria causing tuberculosis and also developed various techniques of media preparation and maintenance of pure culture?

When a muscle fibre shortens, the following also shortens:

The number of water soluble vitamins is?

If we add more substrate to an already occurring enzymatic reaction and it has no affect on the rate of reaction, the process is called?

Which statement best describes the Hardy-Weinberg principle?

The epididymis, vas deferens, and urethra are a series of ducts found in which body system?

Which type of cell would be the most appropriate for the study of chloroplasts?

What is the color of the Xanthophyll pigment?

What structure marks the separation between two sarcomeres?

What is the least common electron transport chain?

What is the length of spinal cord?

Which statement correctly describes the alimentary canal of hydra?

The abiogenesis theory of origin supports:

The darker, outer portion of the brain is called:

The ability of an individual to pass on its phenotype to future generations is known as:

Where does the dark reaction of photosynthesis takes place?

The structural and functional unit of the lungs is:

Chlorophyll b is found in which organisms?

Nontoxic vitamins include which of the following?

All of the following are continuously varying traits except?

The number of stages involved in a heart beat is:

What is the name of the region where double-stranded single circular DNA is found in the prokaryotic cell?

The process of determining the locus for particular biological traits includes?

Gametes in animals are produced by which of the following?

Icosahedral Viruses have how many faces?

The spermatic cord and spermatic duct are?

Who proposed the starch-sugar hypothesis?

The first action spectrum was obtained by?

The spinal cord is part of:

Thymus is found in the human body in _____:

What is the final product of the Krebs cycle?

Which animal of the following is a prototherian?

What type of atom is the carbon atom?

The homologous organs show similarity in:

Chlorophyll molecule contains which ion as a central metal ion?

Which bond provides stability to complex carbohydrate molecules?

How many pairs of homologous chromosomes are present in Pisum sativum?

Which one of the following is most likely to occur in a boy during puberty?

The best function of coelom is described as ____.

Which of the following is not a vestigial organ of man?

Pancreatic zymogens are only activated when they reach the _________.

The number of substrate molecules converted into the product by one molecule of enzyme active site per unit time is called?

Which of the following is an ovoviviparous organism?

Which of the following is an example of superficial reflexes?

What is a typical value for the resting membrane potential of a neuron?

Which condition can be explained by Lamarckism?

Which of the following is a unique characteristic of prokaryotic cells?

Which of the following types of bacterial reproduction is most similar to mitosis?

Saponification number describes _____.

Which of the following is known as a bony joint?

What are the end products of the electron transport chain in animals?

The attraction between water molecules and the cell wall of xylem is termed as:

An activated enzyme made of polypeptide chain and a cofactor is?

In sponges, fertilization takes place in which of the following?

During the transport of carbon dioxide, blood does not become acidic due to:

Which of following systems is segmentally arranged in annelids?

There is no vaccine against HIV. What is the possible reason?

The optimum pH for the functioning of the enzyme pepsin is?

The canal system in sponges develops due to which of the following?

Ribonucleoprotein particles are the name of:

Which among the following defines GPI-anchored proteins?

_________ refers to the breakdown or removal of the capsid.

Non-polar covalent bond is formed between:

Which of these have a positive value of enthalpy?

Which of the following is not an aromatic compound?

Boiling point of hydrides of the 4th period is larger than __________.

When are the prefixes ortho, meta, and para used?

Legumine & collagen protein are present in which type of body tissues?

Fused Bauxite is electrolyzed to get:

Water is considered as a universal solvent because of which properties?

Sodium-11 has the electronic configuration:

Which of the following compounds is sold as fertilizer?

[Fe (CN)6]4- is called as ______.

Calculate the mass in grams of 8.694 moles of Ag2CO3.

The unit of electronegativity is?

The unhybridized p orbitals of benzene are present _________.

273 mL of a gas at STP was taken to 27oC and 600 mm pressure. The final volume of the gas would be:

SN₁ reaction is a:

Which of the following forces have no relation with valence electrons?

In the case of HOCH₂CH₂CH₂COOH, from where is numbering started?

In the Lucas test, tertiary alcohols form an oily layer of alkyl halide _________.

If Kp and Kc have the same values then Δn will be:

An element or its compound is first _____________ to get its ______________ spectrum by a spectrometer.

Acetic acid is soluble in?

Graphite has a structural similarity with:

What is the color of silver acetylide, AgC=CAg?

Electrode Potential is developed when a metal is dipped into:

If water is present in a cup placed on a table, what will be the system in this case?

The alkali metals group lies in the ______.

Actual yield is always less than theoretical yield due to?

A polymer called Bakelite is formed by the reaction of phenol with:

The temperature at which one crystalline form changes to another is called ____ temperature.

Which one of them is used as an automobile antifreeze?

Allotropes are of same?

Vapor pressure is measured by calculating the difference in liquid pressure and?

When two atoms are bonded to form a stable compound, the attractive forces will ______ repulsive forces and the potential energy of the system will be _______.

Instantaneous dipole is produced when ________.

The formula for calculating the number of electrons in subshells or sub-energy levels is:

The order of reaction for which half-life is inversely proportional to the concentration of reaction is?

Fuels with higher octane number can be produced by ___________.

How do meta directing groups affect the electrophilic substitution of benzene ring?

_____ is a macromolecule found in blood.

Kinetic Energy is the sum of ______.

Rate constant is denoted by?

Which of the following carboxylic acids is used in medicine as a local irritant?

How many isomers of mono-substituted benzene are possible?

Which of the following compounds give a positive silver mirror test?

How will the conditions be changed to prevent the volume of the given gas from expanding when its mass is increased?

Which of the following alkyl halides is most reactive towards the Mg atom?

Suppression of ionization means:

In the NaCl crystal, chloride ions present at the face center are distributed in:

Which of the following is an example of aromatic carboxylic acid?

According to VSEPR theory, the repulsions are called:

The increase in size of an anion is due to the increase in repulsion of:

In a pressure cooker, the boiling point of water is _________.

Octane number of n-heptane is ______.

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

Condensation involves which of the following reactions?

During the circular path in magnetic field, what is the magnetic force?

The isothermal process can be defined as?

Three objects are brought close to each other, two at a time. When objects A and B are brought together, they repel. When objects B and C are brought together, they also repel. Which of the following is true?

Which of the following is a radioactive substance?

The shortest distance between two points on the wave that have a phase difference of (π/3) is 5 cm. What is its wavelength?

What will happen in a time of 7 hours, if a radioactive substance has an average life of 7 hours?

Mass and energy are related to each other by:

Which, among the following qualities, is not affected by the magnetic field?

A line normal to the wavefront, showing the direction of the propagation of light is called the:

If a half-wave rectifier is used to convert 50 Hz AC into DC, then the number of pulses present in the rectifier voltage is:

According to Einstein, mass and energy are:

Michelson measured the length of a standard meter in terms of the wavelength of:

The phase angle between two points is 3π. The distance between these points is 15 cm. What is the wavelength of the wave?

What is the de Broglie wavelength associated with an electron, accelerated through a potential difference of 200 volts?

In a centre tap full-wave rectifier, if Vm is the peak voltage across the secondary coil of a transformer, the maximum voltage across the reverse bias is:

C14 has a half-life of 5700 years. At the end of 11400 years, the actual amount left is?

Consider a car is travelling for one hour. In which of the following cases is the average velocity zero?

When a body moves in a circle, the angle between its linear velocity and angular velocity is always?

An example of a non-ohmic resistor is:

Steady current does not change with respect to ________.

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?

The bridge rectifier is preferred to an ordinary two diode full-wave rectifier because?

The strength of a magnetic field is called?

Which of the following is always an exothermic process?

If r= 1m and θ = 1° then what is the value of S?

The ripple factor of a half-wave rectifier is:

A charged particle moving with velocity v, enters a uniform magnetic field B. The direction of v is perpendicular to B. What is the path of the charged particle inside the magnetic field?

The first law of thermodynamics can be stated as?

Which one of them is a type of emission?

The displacement has __________.

If the magnetic field is parallel to a surface, then the magnetic flux through the surface is:

X-ray is the reverse process of:

A liquid has mass m and specific heat capacity c. The rate of change in temperature of the liquid is R. What is the rate at which heat is transferred from the liquid?

The SI Unit for resistance is?

A container contains N2 gas at Tk.The number of moles of gas is n0. Consider it behaves like an ideal gas and its RMS speed is v0. Suppose the temperature of the gas is tripled and N2 molecules dissociate into atoms, then what will be the RMS speed of the atom?

If we are standing in a bus and the driver applies a brake then we feel:

Displacement is a:

A metal rod of length 4 m, velocity 5 m/s and magnetic field 0.5 T will have an induced EMF of:

Find the resistance if the voltage of a circuit is 45 volts and current is 30 Amperes?

Voltage in secondary winding is _____________ to the current in the secondary coil.

Ohm's law is valid when the temperature of the conductor is:

A bullet of mass 10 g leaves a rifle at an initial velocity of 1000 m/s and strikes earth at the same level with a velocity of 500 m/s. The work done in overcoming the resistance of air will be:

Non-inverting amplifier circuits have:

The nuclear forces are considered as?

Consider a car is travelling for one hour. Which of the following trips have the same average velocity?

Centrifuge is used to purify?

EMF becomes equal to the terminal potential difference when the:

A particle of mass 'm' is projected from the ground with an initial speed u0 at an angle 'α' with the horizontal. At the highest point of its trajectory, it makes a completely in-elastic collision with another particle of mass 'm' which was thrown vertically upward from the ground with the same initial speed u0. The angle that the composite system makes with the horizontal immediately after the collision is?

Which principle is used in solar cells?

In a periodic wave, the distance between the second and fifth crest is 15 cm. What is the wavelength of the wave?

The mutual induction happens in?

Momentum of a photon is?

When the nucleus of an unstable atom emits only gamma radiation, the nucleus must:

Electric power is?

Magnetic field lines created by current carrying wire are?

The speed 'v' of the waves in the string depends upon the tension, F, of the string and m, the mass per unit length of the string. It is given by:

Which verb is NOT in the present tense?

Choose the correct sentence from the following options:

I'm now going to give you 10 _______ tips for running a really successful website.

Choose the correct sentence:

Find an error in the following sentence:If I had been thirsty, I would have drank the lemonade without waiting for you.

The two machines _____________ considerably. One has an electric motor, and the other one runs on oil.

Choose the correct spelling of the word:

None of them _______ able to solve this question.

Find the error in the following sentence.

We went to the President as a last ______________.

There was _____ article about pollution in _____ paper.

My parents __________ near Lahore.

We have ________ small house in _________ village in _________ Netherlands.

They will bake the pies. Which tense is used here?

Have you ________ the examination?

How can the underlined word be changed?Mrs Rose *---------planning* to do a course in Biology next week.

Sumafra was surprised when her boss didn't ______ the dinner that they had at the restaurant.

I ____________ English since my childhood.

Some of the books on the table __________ to me.

Sameer __________ in the park every day.

Fact 1: A boy has four cars.Fact 2: Two of the cars are red.Fact 3: He has one sports car. If the above three statements are facts then which of the following statement will also be a fact? I. The boy has a red sports car.II. He has 2 corollas.III. His favorite color is red.

Statements: Some papers are pens. Angle is a paper.Conclusions:I. Angle is not a pen.II. Angle is a pen.

Statements:I. The farmers have decided against selling their Kharif crops to the government agencies.II. The government has reduced the procurement price of Kharif crops starting from last month to the next six months.

Statements:I. There is an unprecedented increase in the number of young unemployed in comparison to the previous year.II. A large number of candidates submitted applications against an advertisement for the post of manager issued by a bank.

Statement: There is an unprecedented increase in the migration of villagers to urban areas as repeated crop failure has put them into a precarious financial situation.Courses of Action:I. The villagers should be provided with an alternate source of income in their villages which will make them stay put.II. The migrated villagers should be provided with jobs in the urban areas to help them survive.

Children are in pursuit of a dog whose leash has broken. James is directly behind the dog. Ruby is behind James. Rachel is behind Ruby. Max is ahead of the dog walking down the street in the opposite direction. As the children and dog pass, Max turns around and joins the pursuit. He runs in behind Ruby. James runs faster and is alongside the dog on the left. Ruby runs faster and is alongside the dog on the right. Which child is directly behind the dog?

A competition always has:

Which word does NOT belong with the others?

Statement: Without reforming the entire administrative system, we cannot eradicate corruption and prejudice from society.Assumptions:I. The existence of corruption and prejudice is good.II. There is enough flexibility to change the administrative system.

Complete the series A25, B625, C15625, ________?