datavorous/entrance-exam-dataset huggingface dataset:
What is the purpose of an organic reaction involving a substrate and a reagent?

Options:
A To form intermediates
B To break covalent bonds
C To supply carbon to the new bond
D To create multiple products

The correct answer is:
To supply carbon to the new bond

Solution:
The substrate is the reactant that supplies carbon to the new bond in an organic reaction.

Topic: Chemistry, General Organic Chemistry, NEET
What is the purpose of an oxidizing agent like HNO3 or HIO4 in iodination reactions?

Options:
A To reduce HI to iodine.
B To oxidize the reactants.
C To enhance the reactivity of iodine.
D To oxidize the HI formed during iodination.

The correct answer is:
To oxidize the HI formed during iodination.

Solution:
Oxidizing agents like HNO3 and HIO4 are used to oxidize the HI formed during iodination reactions.

Topic: Chemistry, Haloalkanes and Haloarenes, NEET
What is the purpose of analysing inheritance patterns of traits in human beings?

Options:
A To perform control crosses that can be done in other organisms
B To identify genetic mutations
C To determine the carrier of a particular trait
D To understand the inheritance of traits in families

The correct answer is:
To understand the inheritance of traits in families

Solution:
Analysing inheritance patterns of traits in human beings helps to understand how traits are passed down from generation to generation in families.

Topic: Biology, Principles of Inheritance and Variation, NEET
What is the purpose of analyzing the isolated compound?

Options:
A To determine the molecular formula and structure
B To classify them biologically
C To identify functional groups
D To determine the elemental composition of living tissues

The correct answer is:
To determine the molecular formula and structure

Solution:
The purpose of analyzing the isolated compound is to determine the molecular formula and structure of the compound. This is achieved by applying analytical techniques to the compound.

Topic: Biology, Biomolecules (B), NEET
What is the purpose of animal husbandry?

Options:
A To increase food production
B To care and breed livestock
C To manage farms and farm animals
D To enhance the productivity of farm animals

The correct answer is:
To care and breed livestock

Solution:
Animal husbandry is the agricultural practice of breeding and raising livestock, and it deals with the care and breeding of livestock like buffaloes, cows, pigs, horses, cattle, sheep, camels, goats, etc.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
What is the purpose of antitoxins?

Options:
A To produce antigenic polypeptides in bacteria or yeast
B To neutralize the pathogenic agents during actual infection
C To provide immunity through mother’s milk
D To protect the body against toxins

The correct answer is:
To protect the body against toxins

Solution:
Antitoxins are a preparation containing antibodies to the toxin and are used in cases of deadly microbes where quick immune response is required, such as in tetanus. They protect the body against toxins.

Topic: Biology, Human Health and Diseases, NEET
What is the purpose of assigning oxidation numbers to all elements in a redox reaction?

Options:
A To determine their melting points
B To calculate the molecular weight of the compounds
C To identify the reactants and products
D To assess their changes in oxidation state

The correct answer is:
To assess their changes in oxidation state

Solution:
Assigning oxidation numbers to all elements in a redox reaction helps assess their changes in oxidation state during the reaction.

Topic: Chemistry, Redox Reactions, NEET
What is the purpose of ATP and NADPH in the biosynthetic phase of photosynthesis?

Options:
A To synthesize food, more accurately, sugars
B To produce O₂
C To activate the Calvin cycle
D To produce CO₂

The correct answer is:
To synthesize food, more accurately, sugars

Solution:
The biosynthetic phase of photosynthesis depends on the products of the light reaction, i.e., ATP and NADPH, besides CO₂ and H₂O, to drive the processes leading to the synthesis of food, more accurately, sugars.

Topic: Biology, Photosynthesis in Higher Plants, NEET
What is the purpose of atrial systole in the heart?

Options:
A To relax the atria
B To increase the flow of blood into the ventricles
C To stimulate the ventricular muscles to contract
D To close the semilunar valves

The correct answer is:
To increase the flow of blood into the ventricles

Solution:
Atrial systole is the simultaneous contraction of both atria, which increases the flow of blood into the ventricles by about 30 percent.

Topic: Biology, Body Fluids and Circulation, NEET
What is the purpose of barrier methods of contraception?

Options:
A To prevent ovum and sperms from physically meeting
B To increase the contraceptive efficiency of other methods
C To reduce the risk of contracting STIs and AIDS
D To provide privacy to the user

The correct answer is:
To prevent ovum and sperms from physically meeting

Solution:
Barrier methods of contraception work by physically preventing the meeting of ovum and sperms, and are available for both males and females.

Topic: Biology, Reproductive Health, NEET
What is the purpose of bile in the digestive process?

Options:
A To digest carbohydrates and proteins
B To emulsify fats
C To absorb digested food
D To move undigested waste out of the body

The correct answer is:
To emulsify fats

Solution:
Bile, which is secreted by the liver and stored in the gall bladder, emulsifies fats in the duodenum during digestion to aid in their breakdown and absorption.

Topic: Biology, Structural Organisation in Animals, NEET
What is the purpose of blood coagulation?

Options:
A To prevent excessive blood loss
B To increase blood flow
C To stimulate platelets
D To form fibrins

The correct answer is:
To prevent excessive blood loss

Solution:
Blood coagulation is a mechanism to prevent excessive loss of blood from the body.

Topic: Biology, Body Fluids and Circulation, NEET
What is the purpose of boiling the fused mass with distilled water in Lassaigne's test?

Options:
A To dissolve the organic compound
B To extract cyanide, sulphide, and halide of sodium
C To convert covalent compounds to ionic compounds
D To separate carbon and nitrogen

The correct answer is:
To extract cyanide, sulphide, and halide of sodium

Solution:
Boiling the fused mass with distilled water is done to extract cyanide, sulphide, and halide of sodium.

Topic: Chemistry, General Organic Chemistry, NEET
What is the purpose of boiling the sodium fusion extract with iron(II) sulfate in the test for nitrogen?

Options:
A To detect the presence of sulfur
B To convert nitrogen to a blue compound
C To form sodium cyanide
D To acidify the solution

The correct answer is:
To convert nitrogen to a blue compound

Solution:
The purpose of boiling the sodium fusion extract with iron(II) sulfate is to convert nitrogen to a blue compound, Prussian blue.

Topic: Chemistry, General Organic Chemistry, NEET
What is the purpose of Bowman's capsule in the renal tubule?

Options:
A To divide the renal tubule into two parts
B To provide structural support
C To enclose the glomerulus
D To filter waste products

The correct answer is:
To enclose the glomerulus

Solution:
Bowman's capsule is a double-walled cup-like structure in the renal tubule that encloses the glomerulus.

Topic: Biology, Excretory Products and their Elimination, NEET
What is the purpose of breaking the cell open?

Options:
A To extract the genetic material
B To add restriction enzymes
C To remove the RNA
D To remove the proteins

The correct answer is:
To extract the genetic material

Solution:
The purpose of breaking the cell open is to release the DNA along with other macromolecules such as RNA, proteins, polysaccharides, and lipids so that the DNA can be purified for further use.

Topic: Biology, Biotechnology - Principles and Processes, NEET
What is the purpose of calculating energy content, biomass or numbers of organisms at different trophic levels?

Options:
A To understand the food chain
B To calculate the number of species in an ecosystem
C To make generalisations about the ecosystem
D To understand the functional level of the species

The correct answer is:
To make generalisations about the ecosystem

Solution:
Any calculations of energy content, biomass or numbers must include all organisms at that trophic level. No generalisations can be true if only a few individuals at any trophic level are taken into account.

Topic: Biology, Ecosystem, NEET
What is the purpose of calculating the instantaneous rate of a reaction?

Options:
A To determine the average rate over a longer time interval
B To predict the final concentration of reactants
C To express the rate at a particular moment of time
D To calculate the rate constant of the reaction

The correct answer is:
To express the rate at a particular moment of time

Solution:
The purpose of calculating the instantaneous rate is to express the rate at a particular moment of time.

Topic: Chemistry, Chemical Kinetics, NEET
What is the purpose of cancer detection?

Options:
A To detect genes in individuals with inherited susceptibility to certain cancers
B To examine a tissue under a microscope
C To detect cancer-specific antigens
D To allow the disease to be treated successfully in many cases

The correct answer is:
To allow the disease to be treated successfully in many cases

Solution:
Early detection of cancers is essential as it allows the disease to be treated successfully in many cases.

Topic: Biology, Human Health and Diseases, NEET
What is the purpose of catalytic converters in automobiles?

Options:
A To convert hydr ocarbons into nitrogen gas
B To inactivate the catalyst
C To reduce the emission of poisonous gases
D To increase the emission of poisonous gases

The correct answer is:
To reduce the emission of poisonous gases

Solution:
Catalytic converters are fitted into automobiles for reducing emission of poisonous gases.

Topic: Biology, Environmental Issues, NEET
What is the purpose of chemicals produced and stored by plants?

Options:
A To provide nutrients to the plants
B To make the herbivore sick when they are eaten
C To attract herbivores
D To prevent predation from predators

The correct answer is:
To make the herbivore sick when they are eaten

Solution:
Many plants produce and store chemicals that make the herbivore sick when they are eaten, inhibit feeding or digestion, disrupt its reproduction or even kill it.

Topic: Biology, Organisms and Populations, NEET
What is the purpose of classification?

Options:
A To study all living organisms
B To make it possible to study all living organisms
C To group organisms into convenient categories
D To associate certain characters with organisms in a group

The correct answer is:
To make it possible to study all living organisms

Solution:
Since it is nearly impossible to study all the living organisms, it is necessary to devise some means to make this possible, this process is called classification.

Topic: Biology, The Living World, NEET
What is the purpose of classifying crystalline solids in different ways?

Options:
A To make them transparent
B To determine their color
C To study their electrical conductivity
D It depends on the purpose at hand.

The correct answer is:
It depends on the purpose at hand.

Solution:
The method of classifying crystalline solids depends on the purpose at hand, as mentioned in the paragraph.

Topic: Chemistry, Solid State, NEET
What is the purpose of clinical assessment of pulmonary functions?

Options:
A To measure the volume of air involved in breathing movements
B To determine the strength of inspiration and expiration
C To assess overall health
D To evaluate the functioning of the lungs

The correct answer is:
To evaluate the functioning of the lungs

Solution:
Clinical assessment of pulmonary functions is used to evaluate the functioning of the lungs.

Topic: Biology, Breathing and Exchange of Gases, NEET
What is the purpose of clinical trials in the downstream processing of biotechnology products?

Options:
A To ensure the quality of the product
B To prepare the product for marketing
C To check the safety and efficacy of the product
D To enhance the growth of cells

The correct answer is:
To check the safety and efficacy of the product

Solution:
Clinical trials are conducted to check the safety and efficacy of the product after formulation and before marketing.

Topic: Biology, Biotechnology - Principles and Processes, NEET
What is the purpose of collecting leaves of diverse species of plants and cutting vertical sections of the leaves?

Options:
A To observe the bundle sheath
B To identify C₃ plants
C To observe the distribution of mesophyll cells
D To identify C₄ plants

The correct answer is:
To identify C₄ plants

Solution:
By observing the presence of bundle sheath around the vascular bundles, the vertical sections of leaves can help identify C₄ plants.

Topic: Biology, Photosynthesis in Higher Plants, NEET
What is the purpose of commercial extraction of chemicals from plants?

Options:
A To provide nutrients to the plants
B To make the herbivore sick when they are eaten
C To extract valuable compounds
D To prevent predation from predators

The correct answer is:
To extract valuable compounds

Solution:
A wide variety of chemical substances that we extract from plants on a commercial scale is for valuable compounds.

Topic: Biology, Organisms and Populations, NEET
What is the purpose of concentrating the solution in crystallization?

Options:
A To make the solution more colorful
B To increase the solubility of the compound
C To reduce the solubility of the compound
D To get a nearly saturated solution

The correct answer is:
To get a nearly saturated solution

Solution:
Concentrating the solution in crystallization is done to obtain a nearly saturated solution, which is essential for the crystallization process.

Topic: Chemistry, General Organic Chemistry, NEET
What is the purpose of connecting multiple leads to the chest region for a detailed evaluation of the heart's function?

Options:
A To monitor the heart activity
B To obtain a detailed ECG
C To regulate the heart rate
D To evaluate the heart's function

The correct answer is:
To evaluate the heart's function

Solution:
For a detailed evaluation of the heart's function, multiple leads are attached to the chest region. This allows for a more in-depth assessment of the heart's activity.

Topic: Biology, Body Fluids and Circulation, NEET
What is the purpose of considering multiple resonance structures for a molecule?

Options:
A To confuse the description of the molecule
B To determine the number of nuclei in the molecule
C To create a hybrid structure that accurately represents the molecule
D To increase the number of electrons in the molecule

The correct answer is:
To create a hybrid structure that accurately represents the molecule

Solution:
Multiple resonance structures are considered to create a hybrid structure that accurately represents the molecule.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What is the purpose of containers containing calcium carbide and calcium phosphide in Holme's signals?

Options:
A To generate electricity
B To produce heat
C To create a smoke screen
D To serve as a signal when gases evolved burn

The correct answer is:
To serve as a signal when gases evolved burn

Solution:
The paragraph mentions that containers containing calcium carbide and calcium phosphide are used in Holme's signals to serve as a signal when the gases evolved burn.

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
What is the purpose of controlled breeding experiments in interspecific hybridisation?

Options:
A To produce desirable matings
B To produce low economic value offspring
C To produce high economic value offspring
D To produce offspring with undesirable features

The correct answer is:
To produce desirable matings

Solution:
Controlled breeding experiments are carried out in interspecific hybridisation to produce desirable matings by using artificial insemination.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
What is the purpose of covering the female parent with a bag?

Options:
A To increase the size of the flowers
B To prevent contamination of stigma
C To promote growth of the plant
D To allow pollination of unisexual flowers

The correct answer is:
To prevent contamination of stigma

Solution:
The female parent is covered with a bag to prevent contamination of its stigma with unwanted pollen.

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET
What is the purpose of covering the surface of a metallic object with paint or chemicals, as mentioned in the paragraph?

Options:
A To increase the weight of the object.
B To enhance the electrical conductivity of the object.
C To prevent contact with the atmosphere and, hence, corrosion.
D To give the object a shiny appearance.

The correct answer is:
To prevent contact with the atmosphere and, hence, corrosion.

Solution:
One of the simplest methods of preventing corrosion is to prevent the surface of the metallic object to come in contact with the atmosphere. This can be done by covering the surface with paint or by some chemicals (e.g. bisphenol).

Topic: Chemistry, Electrochemistry, NEET
What is the purpose of creating transgenic animals that carry genes which make them more sensitive to toxic substances?

Options:
A To study the regulation of genes
B To test the safety of vaccines
C To determine the effects of toxic substances
D To produce medicines cheaper

The correct answer is:
To determine the effects of toxic substances

Solution:
The toxicity of a substance depends on three factors: its chemical structure, the extent to which the substance is absorbed by the body, and the body's ability to detoxify the substance (change it into less toxic substances) and eliminate it from the body.

Topic: Biology, Biotechnology and Its Applications, NEET
What is the purpose of creating transgenic animals that produce useful biological products?

Options:
A To make medicines cheaper
B To make medicines more effective
C To improve the nutritional value of products
D To test the safety of vaccines

The correct answer is:
To make medicines cheaper

Solution:
Transgenic animals are created to produce useful biological products as medicines required to treat certain human diseases can contain biological products that are often expensive to make.

Topic: Biology, Biotechnology and Its Applications, NEET
What is the purpose of curved-arrow notation in organic reactions?

Options:
A To indicate the temperature of the reaction
B To show the positions of reactants and products
C To depict how changes in bonding occur due to electronic redistribution
D To specify the reactants and products involved

The correct answer is:
To depict how changes in bonding occur due to electronic redistribution

Solution:
Curved-arrow notation is used to show how changes in bonding occur due to electronic redistribution during organic reactions.

Topic: Chemistry, General Organic Chemistry, NEET
What is the purpose of cutting the vector and source DNA with the same restriction enzyme?

Options:
A To separate and isolate DNA fragments
B To create recombinant vector molecule
C To form hydrogen bonds
D To cut DNA into fragments

The correct answer is:
To create recombinant vector molecule

Solution:
Cutting the vector and source DNA with the same restriction enzyme allows for the creation of a recombinant vector molecule, which is composed of DNA from different sources/genomes.

Topic: Biology, Biotechnology - Principles and Processes, NEET
What is the purpose of density gradient centrifugation in DNA fingerprinting?

Options:
A To separate repetitive DNA from bulk genomic DNA
B To identify polymorphic regions in DNA sequence
C To compare DNA sequences of two individuals
D To form a major peak of satellite DNA

The correct answer is:
To separate repetitive DNA from bulk genomic DNA

Solution:
Density gradient centrifugation is used to separate repetitive DNA from bulk genomic DNA, as repetitive DNA forms small peaks known as satellite DNA)

Topic: Biology, Molecular Basis of Inheritance, NEET
What is the purpose of deprotonation in the acid-catalysed hydration mechanism?

Options:
A To form a carbocation
B To facilitate nucleophilic attack
C To convert water into a proton
D To form an alcohol

The correct answer is:
To form an alcohol

Solution:
Deprotonation in the mechanism leads to the formation of an alcohol.

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
What is the purpose of determining the mass per cent of elements in an organic compound?

Options:
A To identify the organic compound
B To determine its boiling point
C To calculate its density
D To find its empirical and molecular formula

The correct answer is:
To find its empirical and molecular formula

Solution:
The mass per cent of elements is required for the determination of empirical and molecular formula.

Topic: Chemistry, General Organic Chemistry, NEET
What is the purpose of detritus or dead biomass in the food chain?

Options:
A To serve as a source of energy for decomposers
B To serve as a source of food for producers
C To serve as a source of food for carnivores
D To serve as a source of energy for herbivores

The correct answer is:
To serve as a source of energy for decomposers

Solution:
Detritus or dead biomass serves as an energy source for decomposers.

Topic: Biology, Ecosystem, NEET
What is the purpose of differential extraction?

Options:
A To mix two immiscible solvents
B To separate two immiscible solvents
C To extract an organic compound from an aqueous medium
D To evaporate an organic solvent

The correct answer is:
To extract an organic compound from an aqueous medium

Solution:
Differential extraction is used to extract an organic compound from an aqueous medium using an organic solvent.

Topic: Chemistry, General Organic Chemistry, NEET
What is the purpose of DNA fingerprinting?

Options:
A Identifying differences in protein-coding regions
B Separating repetitive DNA from non-repetitive DNA
C Comparing the DNA sequences of two individuals
D Sequencing DNA in a quick and cost-effective way

The correct answer is:
Comparing the DNA sequences of two individuals

Solution:
DNA fingerprinting is used to compare the DNA sequences of two individuals and identify differences in specific regions of DNA.

Topic: Biology, Molecular Basis of Inheritance, NEET
What is the purpose of downstream processing in biotechnology?

Options:
A To enhance the growth of cells
B To increase the yield of the desired product
C To prepare the product for marketing
D To check the quality of the product

The correct answer is:
To prepare the product for marketing

Solution:
Downstream processing refers to the series of processes required to prepare the product for marketing, including separation and purification and formulation with suitable preservatives.

Topic: Biology, Biotechnology - Principles and Processes, NEET
What is the purpose of drugs that bind to the allosteric site of an enzyme?

Options:
A To enhance substrate binding
B To block the active site
C To change the shape of the active site
D To inhibit enzyme synthesis

The correct answer is:
To change the shape of the active site

Solution:
Drugs binding to the allosteric site change the shape of the enzyme's active site.

Topic: Chemistry, Chemistry in Everyday Life, NEET
What is the purpose of elemental analysis?

Options:
A To determine the functional groups in living tissues
B To determine the elemental composition of living tissues
C To determine the organic and inorganic constituents in living tissues
D All of the above

The correct answer is:
To determine the elemental composition of living tissues

Solution:
Elemental analysis gives the elemental composition of living tissues in the form of hydrogen, oxygen, chlorine, carbon, etc

Topic: Biology, Biomolecules (B), NEET