datavorous/entrance-exam-dataset huggingface dataset:
What is the role of RuBisCO in photosynthesis?

Options:
A Absorbing light energy
B Adding CO₂ to RuBP
C Synthesis of ATP
D Synthesis of NADPH

The correct answer is:
Adding CO₂ to RuBP

Solution:
RuBisCO is an enzyme that adds CO₂ to RuBP during the carbon fixation cycle, which is a crucial step in the formation of sugars in photosynthesis.

Topic: Biology, Photosynthesis in Higher Plants, NEET
What is the role of saliva in the mastication of food?

Options:
A To produce enzymes that break down food
B To lubricate and adhere the masticated food particles into a bolus
C To neutralize stomach acid
D To transport food to the stomach

The correct answer is:
To lubricate and adhere the masticated food particles into a bolus

Solution:
Saliva contains enzymes that help to break down food and also contains mucus, which helps to lubricate and adhere the masticated food particles into a bolus. The bolus is then conveyed into the pharynx and then into the oesophagus by swallowing or deglutition.

Topic: Biology, Digestion and Absorption, NEET
What is the role of selectable markers in gene cloning?

Options:
A To select the transformants from non-recombinants
B To inactivate the foreign DNA
C To visualize the separated DNA fragments
D To ligate the vector to a foreign DNA

The correct answer is:
To select the transformants from non-recombinants

Solution:
In addition to ‘ori’, the vector requires a selectable marker, which helps in identifying and eliminating nontransformants and selectively permitting the growth of the transformants.

Topic: Biology, Biotechnology - Principles and Processes, NEET
What is the role of separating techniques in recombinant technologies?

Options:
A To express foreign genes in host cells
B To extract the desired protein
C To purify the desired protein
D To make recipient cells competent to receive DNA

The correct answer is:
To purify the desired protein

Solution:
The role of separating techniques in recombinant technologies is to purify the desired protein.

Topic: Biology, Biotechnology - Principles and Processes, NEET
What is the role of Sertoli cells in the process of spermatogenesis?

Options:
A Stimulate the synthesis and secretion of androgens
B Acts on the Sertoli cells
C Stimulate secretion of factors which help in the process of spermiogenesis
D None of the above

The correct answer is:
Stimulate secretion of factors which help in the process of spermiogenesis

Solution:
The Sertoli cells are stimulated by FSH secretion, and they secrete some factors which help in the process of spermiogenesis.

Topic: Biology, Human Reproduction, NEET
What is the role of small amount of lipases in the gastric juice?

Options:
A To aid in the digestion of carbohydrates
B To aid in the digestion of proteins
C To aid in the digestion of fats
D To aid in the absorption of vitamins

The correct answer is:
To aid in the digestion of fats

Solution:
Small amounts of lipases are also secreted by gastric glands. Lipases are enzymes that help to break down fats into smaller molecules for easy Digestion and Absorption by the body. These enzymes are produced in small amounts by the gastric glands, but the majority of fat digestion occurs in the small intestine.

Topic: Biology, Digestion and Absorption, NEET
What is the role of society in tackling AIDS?

Options:
A Ignoring the presence of AIDS
B Promoting the spread of AIDS
C Recognizing it as a problem and dealing with it in a collective manner
D Neglecting the problem of AIDS

The correct answer is:
Recognizing it as a problem and dealing with it in a collective manner

Solution:
Society plays an important role in recognizing AIDS as a problem and dealing with it in a collective manner along with the medical fraternity.

Topic: Biology, Human Health and Diseases, NEET
What is the role of soda lime in the decarboxylation of aromatic acids?

Options:
A Catalyst
B Dehydrating agent
C Reducing agent
D Base

The correct answer is:
Base

Solution:
Sodalime, which is a mixture of sodium hydroxide (NaOH) and calcium oxide (CaO), acts as a base in the decarboxylation reaction by abstracting the carboxylic acid group (-COOH) from the aromatic acid.

Topic: Chemistry, Hydrocarbons, NEET
What is the role of sodamide in the conversion of an alkenyl halide into an alkyne?

Options:
A It adds hydrogen
B It eliminates a halogen
C It oxidizes the compound
D It reduces the compound to an alkane

The correct answer is:
It eliminates a halogen

Solution:
Sodamide eliminates a halogen during the conversion of an alkenyl halide into an alkyne.

Topic: Chemistry, Hydrocarbons, NEET
What is the role of sodium hydroxide in the hydroboration-oxidation reaction?

Options:
A To act as a reducing agent
B To facilitate borane addition
C To facilitate the formation of a carbocation
D To provide an acidic environment

The correct answer is:
To facilitate the formation of a carbocation

Solution:
Sodium hydroxide is used to facilitate the borane addition in the hydroboration step.

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
What is the role of sodium hydroxide (NaOH) in the Hoffmann bromamide degradation reaction?

Options:
A NaOH is a catalyst.
B NaOH reacts with bromine to form a strong oxidising agent.
C NaOH hydrolyzes the amide.
D NaOH promotes the migration of the alkyl or aryl group.

The correct answer is:
NaOH hydrolyzes the amide.

Solution:
Sodium hydroxide (NaOH) hydrolyzes the amide in the Hoffmann bromamide degradation reaction, and it also promotes the migration of the alkyl or aryl group.

Topic: Chemistry, Amines, NEET
What is the role of sodium in the Wurtz-Fittig reaction?

Options:
A Catalyst
B Solvent
C Reducing agent
D Nucleophile

The correct answer is:
Reducing agent

Solution:
In the Wurtz-Fittig reaction, sodium acts as a reducing agent to facilitate the reaction.

Topic: Chemistry, Haloalkanes and Haloarenes, NEET
What is the role of specialized health care units in infertility cases?

Options:
A Treatment
B Diagnosis
C Both A and B
D None of the above

The correct answer is:
Both A and B

Solution:
Specialised health care units such as infertility clinics can help in diagnosis and corrective treatment of some of the disorders causing infertility and enable couples to have children.

Topic: Biology, Reproductive Health, NEET
What is the role of species IO- in the reaction mechanism of decomposition of hydrogen peroxide?

Options:
A It is a reactant.
B It is a product.
C It is a catalyst.
D It is an intermediate.

The correct answer is:
It is an intermediate.

Solution:
Species IO- is referred to as an intermediate as it is formed during the course of the reaction but does not appear in the overall balanced equation.

Topic: Chemistry, Chemical Kinetics, NEET
What is the role of succus entericus in the digestion process?

Options:
A It emulsifies fats
B It converts biomacromolecules into simple absorbable forms
C It converts active enzymes
D It is a lubrication for the intestinal wall

The correct answer is:
It converts biomacromolecules into simple absorbable forms

Solution:
Succus entericus is the intestinal juice or secretions of the brush border cells of the mucosa along with goblet cells. It contains a variety of enzymes like disaccharidases, dipeptidases, lipases, nucleosidases, etc. These enzymes act on the end products of the digestion and converts the biomacromolecules into simple absorbable forms.

Topic: Biology, Digestion and Absorption, NEET
What is the role of surface particles in adsorption?

Options:
A They possess balanced forces.
B They possess unbalanced or residual attractive forces.
C They lack attractive forces.
D They are surrounded by atoms or molecules of their kind.

The correct answer is:
They possess unbalanced or residual attractive forces.

Solution:
The paragraph states that on the surface, particles possess unbalanced or residual attractive forces.

Topic: Chemistry, Surface Chemistry, NEET
What is the role of surgery in the treatment of cancer?

Options:
A To remove the tumor mass
B To activate the immune system
C To kill tumor cells through radiation
D To reduce the side effects of chemotherapy

The correct answer is:
To remove the tumor mass

Solution:
Surgery is a common approach for the treatment of cancer and its purpose is to remove the tumor mass.

Topic: Biology, Human Health and Diseases, NEET
What is the role of systemic circulation in the body?

Options:
A To provide nutrients, O₂, and essential substances to the tissues
B To deliver blood from intestine to the liver
C To circulate blood to the cardiac musculature
D To take CO₂ and harmful substances away for elimination

The correct answer is:
To provide nutrients, O₂, and essential substances to the tissues

Solution:
The systemic circulation provides nutrients, O₂, and essential substances to the tissues and takes CO₂ and harmful substances away for elimination.

Topic: Biology, Body Fluids and Circulation, NEET
What is the role of the active site in enzyme action?

Options:
A To break the chemical bonds of the substrate
B To form the ES complex
C To induce the enzyme to alter its shape
D To release the products of the reaction

The correct answer is:
To break the chemical bonds of the substrate

Solution:
The active site of the enzyme breaks the chemical bonds of the substrate during the catalytic cycle.

Topic: Biology, Biomolecules (B), NEET
What is the role of the adrenal gland?

Options:
A It secretes thymosins
B It secretes melatonin
C It secretes parathyroid hormone
D It secretes epinephrine and norepinephrine

The correct answer is:
It secretes epinephrine and norepinephrine

Solution:
The adrenal gland is composed of the adrenal medulla and adrenal cortex. The adrenal medulla secretes epinephrine and norepinephrine.

Topic: Biology, Chemical Coordination and Integration, NEET
What is the role of the alkaline pH of the gut in the activation of Bt toxin?

Options:
A It solubilizes the crystals
B It causes cell swelling and lysis
C It converts inactive toxin into active form
D Both A) and C)

The correct answer is:
Both A) and C)

Solution:
Actually, the Bt toxin protein exist as inactive protoxins but once an insect ingest the inactive toxin, it is converted into an active form of toxin due to the alkaline pH of the gut which solubilize the crystals.

Topic: Biology, Biotechnology and Its Applications, NEET
What is the role of the amygdala in the limbic system?

Options:
A Controls body temperature, urge for eating and drinking
B Involved in the regulation of sexual behavior
C A complex structure formed by the inner parts of cerebral hemispheres
D Expression of emotional reactions

The correct answer is:
Expression of emotional reactions

Solution:
The amygdala, along with other structures of the limbic system, is involved in the expression of emotional reactions.

Topic: Biology, Neural Control and Coordination, NEET
What is the role of the antennae in photosynthesis?

Options:
A To make photosynthesis more efficient
B To absorb different wavelengths of light
C Both A) and B)
D None of the above

The correct answer is:
Both A) and B)

Solution:
The antennae, made up of pigments, help to make photosynthesis more efficient by absorbing different wavelengths of light.

Topic: Biology, Photosynthesis in Higher Plants, NEET
What is the role of the brain stem?

Options:
A Interconnect different regions of the brain
B Regulate sexual behaviour and emotional reactions
C Form the connections between the brain and spinal cord
D Control respiration, cardiovascular reflexes and gastric secretions

The correct answer is:
Form the connections between the brain and spinal cord

Solution:
The brain stem forms the connections between the brain and spinal cord.

Topic: Biology, Neural Control and Coordination, NEET
What is the role of the cation exchange process in the water treatment method using resins?

Options:
A To increase water hardness
B To remove all dissolved ions from the water
C To make the water acidic
D To exchange hardness ions for hydrogen ions

The correct answer is:
To exchange hardness ions for hydrogen ions

Solution:
The cation exchange process in the water treatment method using resins aims to exchange hardness ions (calcium and magnesium ions) for hydrogen ions (H+), resulting in the release of protons and making the water acidic.

Topic: Chemistry, Hydrogen, NEET
What is the role of the cells in the region of elongation in a plant root?

Options:
A To absorb water and minerals
B To protect the tender apex of the root
C To undergo rapid elongation and enlargement
D To promote root hair formation

The correct answer is:
To undergo rapid elongation and enlargement

Solution:
The cells in the region of elongation undergo rapid elongation and enlargement and are responsible for the growth of the root in length.

Topic: Biology, Morphology of Flowering Plants, NEET
What is the role of the cervix in the human female reproductive system?

Options:
A Helps in ovulation
B Helps in regulating the passage of sperms
C Helps in fertilisation
D All of the above

The correct answer is:
Helps in regulating the passage of sperms

Solution:
Cervix helps in regulating the passage of sperms into the uterus and forms the birth canal to facilitate parturition.

Topic: Biology, Human Reproduction, NEET
What is the role of the CFₒ in the ATP synthase enzyme?

Options:
A Catalyzes the formation of ATP
B Provides energy for the biosynthetic reaction
C Forms a transmembrane channel that carries out facilitated diffusion of protons across the membrane
D Reduces NADP⁺ to NADPH⁺ H⁺

The correct answer is:
Forms a transmembrane channel that carries out facilitated diffusion of protons across the membrane

Solution:
The CFₒ is embedded in the thylakoid membrane and forms a transmembrane channel that carries out facilitated diffusion of protons across the membrane, which is crucial for the synthesis of ATP.

Topic: Biology, Photosynthesis in Higher Plants, NEET
What is the role of the chemosensitive area in regulating the respiratory system?

Options:
A It regulates the oxygen levels in the blood
B It controls the rate of breathing
C It controls the depth of breathing
D It controls the pattern of breathing

The correct answer is:
It regulates the oxygen levels in the blood

Solution:
A chemosensitive area is situated adjacent to the rhythm centre which is highly sensitive to CO₂ and hydrogen ions. Increase in these substances can activate this centre, which in turn can signal the rhythm centre to make necessary adjustments in the respiratory process by which these substances can be eliminated.

Topic: Biology, Breathing and Exchange of Gases, NEET
What is the role of the CNS in the release of urine from the bladder?

Options:
A It decreases the bladder pressure
B It decreases the bladder volume
C It initiates the contraction of smooth muscles of the bladder
D It stimulates the urethral sphincter to relax

The correct answer is:
It initiates the contraction of smooth muscles of the bladder

Solution:
The CNS receives signals from the stretch receptors on the walls of the bladder and passes on motor messages to initiate the contraction of smooth muscles of the bladder and the simultaneous relaxation of the urethral sphincter, causing the release of urine.

Topic: Biology, Excretory Products and their Elimination, NEET
What is the role of the collecting duct in the excretory system?

Options:
A To reabsorb water and electrolytes
B To secrete H⁺, K⁺ and NH₃
C To store urine
D To regulate osmotic pressure

The correct answer is:
To reabsorb water and electrolytes

Solution:
The DCT and collecting duct allow for the extensive reabsorption of water and certain electrolytes, which helps in osmoregulation.

Topic: Biology, Excretory Products and their Elimination, NEET
What is the role of the conduction band in the conductivity of metals?

Options:
A It prevents the flow of electrons.
B It allows electrons to flow easily.
C It contains only valence electrons.
D It determines the color of the metal.

The correct answer is:
It allows electrons to flow easily.

Solution:
The conduction band in metals allows electrons to flow easily, contributing to their conductivity.

Topic: Chemistry, Solid State, NEET
What is the role of the corpus callosum in the human brain?

Options:
A Dividing the cerebrum into left and right hemispheres
B Connecting the hemispheres
C Covering the hemispheres with the cerebral cortex
D Providing the myelin sheath for the tracts

The correct answer is:
Connecting the hemispheres

Solution:
The corpus callosum is a tract of nerve fibres that connects the left and right cerebral hemispheres.

Topic: Biology, Neural Control and Coordination, NEET
What is the role of the delocalized electrons in increasing the conductivity of doped silicon or germanium?

Options:
A They form covalent bonds with neighboring atoms.
B They create holes in the crystal lattice.
C They carry an electric current.
D They increase the lattice spacing.

The correct answer is:
They carry an electric current.

Solution:
Delocalized electrons in doped silicon or germanium increase conductivity by carrying an electric current.

Topic: Chemistry, Solid State, NEET
What is the role of the diaphragm in the digestive system?

Options:
A To divide the thorax and abdomen
B To mix food with stomach acid
C To absorb nutrients from food
D To control the flow of food into the stomach

The correct answer is:
To divide the thorax and abdomen

Solution:
The oesophagus extends posteriorly passing through the neck, thorax and diaphragm. The diaphragm is a muscle that separates the thorax and abdomen and plays a role in breathing.

Topic: Biology, Digestion and Absorption, NEET
What is the role of the diastase enzyme?

Options:
A Conversion of starch into maltose
B Decomposition of urea into ammonia and carbon dioxide
C Conversion of milk into curd
D Conversion of glucose into ethyl alcohol and carbon dioxide

The correct answer is:
Conversion of starch into maltose

Solution:
The paragraph indicates that the diastase enzyme catalyzes the conversion of starch into maltose.

Topic: Chemistry, Surface Chemistry, NEET
What is the role of the epiglottis in the human respiratory system?

Options:
A To regulate airflow
B To control swallowing
C To produce sound
D To filter air

The correct answer is:
To control swallowing

Solution:
The epiglottis is a thin elastic cartilaginous flap that covers the glottis during swallowing to prevent the entry of food into the larynx.

Topic: Biology, Breathing and Exchange of Gases, NEET
What is the role of the female Anopheles mosquito in the life cycle of Plasmodium?

Options:
A Host
B Carrier
C Vector
D Transmitter

The correct answer is:
Vector

Solution:
The female Anopheles mosquito is the vector (transmitting agent) in the life cycle of Plasmodium. The sporozoites of Plasmodium are stored in the salivary glands of the mosquito and when the mosquito bites a human, the sporozoites are introduced into their body.

Topic: Biology, Human Health and Diseases, NEET
What is the role of the female reproductive system in the processes of ovulation, fertilisation, pregnancy, birth, and child care?

Options:
A Structural support
B Hormonal support
C Both structural and hormonal support
D No support

The correct answer is:
Both structural and hormonal support

Solution:
The female reproductive system along with a pair of mammary glands are integrated structurally and functionally to support the processes of ovulation, fertilization, pregnancy, birth, and child care.

Topic: Biology, Human Reproduction, NEET
What is the role of the gas constant 'R' in the Arrhenius equation?

Options:
A It represents the rate of reaction.
B It determines the activation energy.
C It is a pre-exponential factor.
D It relates temperature to the rate constant.

The correct answer is:
It relates temperature to the rate constant.

Solution:
'R' in Arrhenius equation is the gas constant, and it relates temperature to the rate constant through the equation.

Topic: Chemistry, Chemical Kinetics, NEET
What is the role of the globular head in the heavy meromyosin (HMM) component?

Options:
A It acts as a binding site for ATP
B It acts as a masking agent
C It acts as an ATPase enzyme
D It runs close to the F actins

The correct answer is:
It acts as an ATPase enzyme

Solution:
The globular head in the HMM component is an active ATPase enzyme and has binding sites for ATP and active sites for actin.

Topic: Biology, Locomotion and Movement, NEET
What is the role of the glomerulus in the filtration of blood during urine formation?

Options:
A To absorb substances from the blood
B To secrete substances into the blood
C To cause filtration of blood through the filtration membranes
D To transport substances from the Bowman's capsule lumen to the renal tubule

The correct answer is:
To cause filtration of blood through the filtration membranes

Solution:
The glomerular filtration of blood is the first step in urine formation. The glomerular capillary blood pressure causes filtration of blood through 3 layers, i.e., the endothelium of glomerular blood vessels, the epithelium of Bowman's capsule and a basement membrane between these two layers. On an average, 1100-1200 ml of blood is filtered by the kidneys per minute.

Topic: Biology, Excretory Products and their Elimination, NEET
What is the role of the "H" zone in a resting state myofibril?

Options:
A To contract the sarcomere
B To hold the thick filaments together
C To separate the "A" and "I" bands
D To represent the central part of the thick filament not overlapped by thin filaments

The correct answer is:
To represent the central part of the thick filament not overlapped by thin filaments

Solution:
In a resting state, the edges of thin filaments on either side of the thick filaments partially overlap the free ends of the thick filaments leaving the central part of the thick filaments. This central part of thick filament, not overlapped by thin filaments is called the "H" zone.

Topic: Biology, Locomotion and Movement, NEET
What is the role of the hippocampus in the limbic system?

Options:
A Controls body temperature, urge for eating and drinking
B Involved in the regulation of sexual behavior
C A complex structure formed by the inner parts of cerebral hemispheres
D Processing of memory and spatial navigation

The correct answer is:
Processing of memory and spatial navigation

Solution:
The hippocampus, along with other structures of the limbic system, is involved in processing of memory and spatial navigation.

Topic: Biology, Neural Control and Coordination, NEET
What is the role of the human endocrine system?

Options:
A To provide coordination in the vertebrates
B To produce hormones
C To provide a simple endocrine system
D To regulate the physiological functions in the body

The correct answer is:
To regulate the physiological functions in the body

Solution:
The human endocrine system regulates the physiological functions in the body.

Topic: Biology, Chemical Coordination and Integration, NEET
What is the role of the hydrocarbon chains in micelle formation?

Options:
A They stay in water
B They point towards the centre of the sphere
C They form linear structures
D They repel COO– groups

The correct answer is:
They point towards the centre of the sphere

Solution:
In micelle formation, the hydrocarbon chains point towards the centre of the sphere.

Topic: Chemistry, Surface Chemistry, NEET
What is the role of the hydroxyl group at C-5 in glucose's ring formation?

Options:
A It forms a ketone group.
B It forms a hemiacetal with the aldehyde group.
C It participates in ring closure.
D It is responsible for reducing properties.

The correct answer is:
It participates in ring closure.

Solution:
The hydroxyl group at C-5 is involved in ring formation when glucose undergoes cyclization.

Topic: Chemistry, Biomolecules, NEET
What is the role of the hypothalamus in the endocrine system?

Options:
A It secretes melatonin
B It regulates the basal metabolic rate
C It provides chemical coordination and regulation
D It produces six trophic hormones

The correct answer is:
It provides chemical coordination and regulation

Solution:
The hypothalamus provides chemical coordination, integration and regulation in the human body by releasing hormones.

Topic: Biology, Chemical Coordination and Integration, NEET