datavorous/entrance-exam-dataset huggingface dataset:
What is the function of the enzyme used in PCR?

Options:
A To degrade the DNA
B To extend the primers
C To amplify the DNA
D To denature the DNA

The correct answer is:
To extend the primers

Solution:
In PCR, the enzyme DNA polymerase extends the primers using the nucleotides provided in the reaction and the genomic DNA as a template.

Topic: Biology, Biotechnology - Principles and Processes, NEET
What is the function of the epiglottis?

Options:
A To control the flow of food into the stomach
B To control the flow of air into the lungs
C To control the flow of food into the lungs
D To control the flow of air into the stomach

The correct answer is:
To control the flow of food into the lungs

Solution:
A cartilaginous flap called epiglottis prevents the entry of food into the glottis – opening of the wind pipe – during swallowing. This prevents food from entering the lungs, which could cause choking.

Topic: Biology, Digestion and Absorption, NEET
What is the function of the exine in the pollen grain?

Options:
A To protect the pollen grain from external damage
B To provide food for the vegetative cell
C To produce male gametes
D To regulate the temperature of the pollen grain

The correct answer is:
To protect the pollen grain from external damage

Solution:
The exine is the hard outer layer of the pollen grain and is made up of the highly resistant material called sporopollenin. It provides protection to the pollen grain from external damage and high temperatures.

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET
What is the function of the filiform apparatus in the micropylar part of the synergids?

Options:
A To stop the entry of pollen tube
B To guide the entry of pollen tube
C To slow down the entry of pollen tube
D To prevent the entry of pollen tube

The correct answer is:
To guide the entry of pollen tube

Solution:
Many recent studies have shown that the filiform apparatus present at the micropylar part of the synergids guides the entry of the pollen tube.

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET
What is the function of the "G" (Globular) actin?

Options:
A To activate the binding sites for myosin on actin filaments
B To mask the active binding sites for myosin on actin filaments
C To form the "F" (Filamentous) actins
D To regulate the interaction between "F" actins and tropomyosin

The correct answer is:
To form the "F" (Filamentous) actins

Solution:
Each "F" actin is a polymer of monomeric "G" (Globular) actins.

Topic: Biology, Locomotion and Movement, NEET
What is the function of the glands present in the sub-mucosa of the duodenum?

Options:
A To produce enzymes to aid in digestion
B To neutralise stomach acid
C To produce hormones
D To control the movement of food

The correct answer is:
To produce enzymes to aid in digestion

Solution:
In the duodenum, glands are also present in sub-mucosa. These glands produce enzymes to aid in the digestion of food.

Topic: Biology, Digestion and Absorption, NEET
What is the function of the glycocalyx in bacteria?

Options:
A To provide structural support to prevent bursting or collapsing
B To act as a barrier against harmful substances
C To aid in nutrient absorption
D To aid in movement

The correct answer is:
To act as a barrier against harmful substances

Solution:
The glycocalyx, also known as the slime layer or capsule, acts as a barrier to protect the bacteria from harmful substances in the environment.

Topic: Biology, Cell - The Unit of Life, NEET
What is the function of the glycocalyx in the cell envelope of prokaryotic cells?

Options:
A Provides structural support
B Acts as a barrier to prevent entry of harmful substances
C Contains enzymes for metabolic processes
D Facilitates cell-to-cell communication

The correct answer is:
Facilitates cell-to-cell communication

Solution:
The glycocalyx, the outermost layer of the cell envelope in prokaryotic cells, is a sticky, sugar-based layer that facilitates cell-to-cell communication. It also helps in adhesion to surfaces, and in the formation of biofilms.

Topic: Biology, Cell - The Unit of Life, NEET
What is the function of the heart in the circulatory system?

Options:
A To pump oxygen to the body
B To filter blood
C To control blood pressure
D To control heart rate

The correct answer is:
To pump oxygen to the body

Solution:
The heart is a muscular pumping organ in the circulatory system which pumps oxygen-rich blood to the body and carries waste away from it.

Topic: Biology, Body Fluids and Circulation, NEET
What is the function of the heart in the human circulatory system?

Options:
A To transport blood
B To produce blood
C To store blood
D To regulate blood pressure

The correct answer is:
To transport blood

Solution:
The heart in the human circulatory system pumps blood, which is circulated throughout the body via a network of blood vessels.

Topic: Biology, Body Fluids and Circulation, NEET
What is the function of the hymen in the female external genitalia?

Options:
A To surround the vaginal opening
B To partially cover the opening of the vagina
C A cushion of fatty tissue covered by skin and pubic hair
D To lie at the upper junction of the two labia minora

The correct answer is:
To partially cover the opening of the vagina

Solution:
The hymen is a membrane that often covers the opening of the vagina partially, and is part of the female external genitalia.

Topic: Biology, Human Reproduction, NEET
What is the function of the hypodermis in a young dicotyledonous stem?

Options:
A Provides mechanical strength
B Consists of collenchymatous cells
C Consists of parenchymatous cells
D Contains starch grains

The correct answer is:
Provides mechanical strength

Solution:
The hypodermis is the outermost layer of the cortex and consists of a few layers of collenchymatous cells just below the epidermis. It provides mechanical strength to the young stem.

Topic: Biology, Anatomy of Flowering Plants, NEET
What is the function of the hypothalamus in the endocrine system?

Options:
A Synthesis of hormones
B Regulation of secretion of pituitary hormones
C Production of hormones
D All of the above

The correct answer is:
Regulation of secretion of pituitary hormones

Solution:
The hypothalamus contains several groups of neurosecretory cells called nuclei which produce hormones that regulate the synthesis and secretion of pituitary hormones.

Topic: Biology, Chemical Coordination and Integration, NEET
What is the function of the hypothalamus?

Options:
A Regulating the synthesis and secretion of hormones from the ovary
B Regulating the synthesis and secretion of hormones from the pituitary
C Regulating the synthesis and secretion of hormones from the adrenal gland
D Regulating the synthesis and secretion of hormones from the thyroid gland

The correct answer is:
Regulating the synthesis and secretion of hormones from the pituitary

Solution:
The hypothalamus is the basal part of the forebrain and it regulates a wide spectrum of body functions. It contains several groups of neurosecretory cells called nuclei which produce hormones that regulate the synthesis and secretion of pituitary hormones.

Topic: Biology, Chemical Coordination and Integration, NEET
What is the function of the i gene in the lac operon?

Options:
A It codes for beta-galactosidase
B It codes for permease
C It codes for transacetylase
D It codes for the repressor of the lac operon

The correct answer is:
It codes for the repressor of the lac operon

Solution:
The i gene codes for the repressor of the lac operon, which regulates the expression of the three structural genes.

Topic: Biology, Molecular Basis of Inheritance, NEET
What is the function of the joint as a fulcrum during movement?

Options:
A To store energy
B To transfer force generated by muscles
C To act as a barrier between bones
D To protect bones

The correct answer is:
To transfer force generated by muscles

Solution:
The joint acts as a fulcrum where force generated by the muscles is used to carry out movement.

Topic: Biology, Locomotion and Movement, NEET
What is the function of the labia majora in the female external genitalia?

Options:
A To extend down from the mons pubis
B To be paired folds of tissue
C To surround the vaginal opening
D To lie at the upper junction of the two labia minora

The correct answer is:
To surround the vaginal opening

Solution:
The labia majora are fleshy folds of tissue that extend down from the mons pubis and surround the vaginal opening, and are part of the female external genitalia.

Topic: Biology, Human Reproduction, NEET
What is the function of the labia minora in the female external genitalia?

Options:
A To extend down from the mons pubis
B To be paired folds of tissue under the labia majora
C To surround the vaginal opening
D To lie at the upper junction of the two labia minora

The correct answer is:
To be paired folds of tissue under the labia majora

Solution:
The labia minora are paired folds of tissue that are under the labia majora, and are part of the female external genitalia.

Topic: Biology, Human Reproduction, NEET
What is the function of the larynx in the human respiratory system?

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

The correct answer is:
To produce sound

Solution:
The larynx is a cartilaginous box which helps in sound production and is hence called the sound box.

Topic: Biology, Breathing and Exchange of Gases, NEET
What is the function of the light reaction in photosynthesis?

Options:
A To add CO₂ to RuBP
B To synthesize ATP and NADPH
C To absorb light energy
D To release O₂ and form NADH

The correct answer is:
To absorb light energy

Solution:
The light reaction is the stage in photosynthesis where the light energy is absorbed by the pigments present in the antenna and funnelled to reaction center chlorophylls. This stage also results in the synthesis of ATP and NADPH.

Topic: Biology, Photosynthesis in Higher Plants, NEET
What is the function of the limbic system in the brain?

Options:
A Involved in the regulation of sexual behavior
B Expression of emotional reactions
C Controls body temperature, urge for eating and drinking
D All of the above

The correct answer is:
All of the above

Solution:
The limbic system, along with the hypothalamus, is involved in the regulation of sexual behavior, expression of emotional reactions, and motivation.

Topic: Biology, Neural Control and Coordination, NEET
What is the function of the liver in the digestive process?

Options:
A Secretes bile that is stored in the gallbladder
B Produces pancreatic juice
C Digests carbohydrates and proteins
D Absorbs digested food through villi and microvilli

The correct answer is:
Secretes bile that is stored in the gallbladder

Solution:
The liver secretes bile, which is stored in the gallbladder and released into the duodenum to emulsify fats during digestion.

Topic: Biology, Structural Organisation in Animals, NEET
What is the function of the lymph nodes in the human body?

Options:
A Filter of the blood
B Micro-environment for T-lymphocytes
C Trapping of antigens
D Storage of erythrocytes

The correct answer is:
Trapping of antigens

Solution:
Lymph nodes serve to trap the micro-organisms or other antigens, which happen to get into the lymph and tissue fluid. Antigens trapped in the lymph nodes are responsible for the activation of lymphocytes present there and cause the immune response.

Topic: Biology, Human Health and Diseases, NEET
What is the function of the "M" line in the "A" band of a myofibril?

Options:
A To contract the sarcomere
B To hold the thick filaments together
C To separate the "A" and "I" bands
D To regulate the overlap of thin filaments on thick filaments

The correct answer is:
To hold the thick filaments together

Solution:
The "M" line is a thin fibrous membrane that holds the thick filaments together in the middle of the "A" band.

Topic: Biology, Locomotion and Movement, NEET
What is the function of the male germ cells in the testis?

Options:
A To undergo meiotic divisions and lead to sperm formation
B To provide nutrition to the Sertoli cells
C To line the inside of the seminiferous tubules
D To secrete testicular hormones

The correct answer is:
To undergo meiotic divisions and lead to sperm formation

Solution:
The male germ cells undergo meiotic divisions and lead to sperm formation.

Topic: Biology, Human Reproduction, NEET
What is the function of the mammary ampulla in a mammary gland?

Options:
A To secrete milk
B To store milk
C To connect the mammary ducts
D To connect the lactiferous ducts

The correct answer is:
To connect the lactiferous ducts

Solution:
The mammary ampulla is connected to lactiferous duct through which milk is sucked out.

Topic: Biology, Human Reproduction, NEET
What is the function of the mammary tubules in a mammary gland?

Options:
A To secrete milk
B To store milk
C To connect the mammary ducts
D To connect the lactiferous ducts

The correct answer is:
To connect the mammary ducts

Solution:
The tubules of each lobe of the mammary gland join to form a mammary duct.

Topic: Biology, Human Reproduction, NEET
What is the function of the mesophyll in a leaf?

Options:
A To provide mechanical strength
B To absorb water and curl the leaves
C To carry out photosynthesis
D To provide a protective layer

The correct answer is:
To carry out photosynthesis

Solution:
The mesophyll of a leaf, which is composed of parenchyma cells, possess chloroplasts and carry out photosynthesis

Topic: Biology, Anatomy of Flowering Plants, NEET
What is the function of the micropyle in an ovule?

Options:
A To represent the junction between ovule and funicle
B To serve as a small opening in the integuments
C To represent the basal part of the ovule
D None of the above

The correct answer is:
To serve as a small opening in the integuments

Solution:
Micropyle in an ovule serves as a small opening.

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET
What is the function of the microvilli?

Options:
A To protect the alimentary canal
B To control the movement of food
C To aid in absorption of nutrients
D To produce hormones

The correct answer is:
To aid in absorption of nutrients

Solution:
The cells lining the villi produce numerous microscopic projections called microvilli, which give a brush border appearance. These microvilli further increase the surface area for absorption, by providing more space for enzymes to work on.

Topic: Biology, Digestion and Absorption, NEET
What is the function of the mineral acid catalyst in the esterification of carboxylic acids?

Options:
A To hydrolyze the carboxylic acids
B To oxidise the carboxylic acids
C To dehydrate the carboxylic acids
D To reduce the carboxylic acids

The correct answer is:
To dehydrate the carboxylic acids

Solution:
The mineral acid catalyst in esterification serves to dehydrate the carboxylic acids, facilitating the formation of esters.

Topic: Chemistry, Aldehydes, Ketones and Carboxylic Acids, NEET
What is the function of the mouth on the hypostome in cnidarians?

Options:
A Water transport
B Anchorage and defense
C Digestion
D Single opening for food intake

The correct answer is:
Single opening for food intake

Solution:
Cnidarians have a central gastrovascular cavity with a single opening, mouth on hypostome, for food intake.

Topic: Biology, Animal Kingdom, NEET
What is the function of the myosin head?

Options:
A To bind to the exposed active sites on actin
B To release ADP and P1
C To break the cross-bridge
D To be an ATPase enzyme

The correct answer is:
To be an ATPase enzyme

Solution:
The globular head of the myosin filament 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 function of the neural canal in each vertebra?

Options:
A To support the head
B To protect the spinal cord
C To serve as the point of attachment for the ribs
D To articulate with the occipital condyles

The correct answer is:
To protect the spinal cord

Solution:
Each vertebra has a central hollow portion (neural canal) through which the spinal cord passes.

Topic: Biology, Locomotion and Movement, NEET
What is the function of the operator region in prokaryotic DNA?

Options:
A To bind a repressor protein
B To bind a transcription factor
C To synthesise RNA polymerase
D To catalyse the hydrolysis of lactose

The correct answer is:
To bind a repressor protein

Solution:
The operator region is adjacent to the promoter elements in most operons and in most cases the sequences of the operator bind a repressor protein. Each operon has its specific operator and specific repressor.

Topic: Biology, Molecular Basis of Inheritance, NEET
What is the function of the organ of Corti?

Options:
A To convert light vibrations into nerve impulses
B To convert sound vibrations into nerve impulses
C To control the movement of the iris
D To regulate blood pressure

The correct answer is:
To convert sound vibrations into nerve impulses

Solution:
The organ of Corti is a structure located on the basilar membrane of the cochlea that contains hair cells that convert sound vibrations into nerve impulses.

Topic: Biology, Digestion and Absorption, NEET
What is the function of the origin of replication (ori) in gene cloning?

Options:
A To control the copy number of the linked DNA
B To eliminate nontransformants
C To visualize the separated DNA fragments
D To ligate the vector to a foreign DNA

The correct answer is:
To control the copy number of the linked DNA

Solution:
The origin of replication (ori) is a sequence from where replication starts and any piece of DNA when linked to this sequence can be made to replicate within the host cells. This sequence is also responsible for controlling the copy number of the linked DNA.

Topic: Biology, Biotechnology - Principles and Processes, NEET
What is the function of the ovary in a flower?

Options:
A To serve as a platform for landing of pollen grains
B To serve as an elongated slender part beneath the stigma
C To serve as a base for the megasporangia
D None of the above

The correct answer is:
To serve as a base for the megasporangia

Solution:
The basal bulged part of the pistil is the ovary. Inside the ovary is the ovarian cavity (locule) and the placenta.

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET
What is the function of the oviducts in the female reproductive system?

Options:
A Production of ovum
B Transport of ovum from ovary to uterus
C Lubrication of the vagina
D Secretion of seminal plasma

The correct answer is:
Transport of ovum from ovary to uterus

Solution:
Oviducts facilitate the transport of ovum from ovary to uterus.

Topic: Biology, Human Reproduction, NEET
What is the function of the pancreas in digestion?

Options:
A It produces enzymes that break down carbohydrates
B It produces enzymes that break down proteins
C It produces enzymes that break down fats
D It produces insulin to regulate blood sugar levels and also secretes enzymes that aid in digestion of carbohydrates, fats, and proteins

The correct answer is:
It produces insulin to regulate blood sugar levels and also secretes enzymes that aid in digestion of carbohydrates, fats, and proteins

Solution:
The pancreas plays a dual role in the digestive process. It produces insulin to regulate blood sugar levels and also secretes enzymes that aid in the digestion of carbohydrates, fats, and proteins. These enzymes are released into the small intestine where they break down the food further.

Topic: Biology, Digestion and Absorption, NEET
What is the function of the pancreas in the digestive process?

Options:
A Secretes bile that is stored in the gallbladder
B Produces pancreatic juice containing digestive enzymes
C Digests carbohydrates and proteins
D Absorbs digested food through villi and microvilli

The correct answer is:
Produces pancreatic juice containing digestive enzymes

Solution:
The pancreas, a digestive gland, produces pancreatic juice containing enzymes that aid in the digestion of carbohydrates and proteins.

Topic: Biology, Structural Organisation in Animals, NEET
What is the function of the pancreas?

Options:
A Produce enzymes and hormones
B Produce insulin and glucagon
C Store and concentrate bile
D Both A) and B)

The correct answer is:
Both A) and B)

Solution:
The pancreas is a compound organ with both exocrine and endocrine functions.

Topic: Biology, Digestion and Absorption, NEET
What is the function of the parathyroid gland in frogs?

Options:
A Regulating blood sugar levels
B Regulating heart rate
C Regulating calcium levels in the blood
D Regulating metabolism

The correct answer is:
Regulating calcium levels in the blood

Solution:
The parathyroid gland is responsible for regulating calcium levels in the blood by secreting parathyroid hormone. This hormone increases the release of calcium from the bones and decreases its excretion by the kidneys.

Topic: Biology, Structural Organisation in Animals, NEET
What is the function of the pars distalis of the pituitary gland?

Options:
A To store and release oxytocin and vasopressin
B To produce melanocyte stimulating hormone
C To produce growth hormone, prolactin, thyroid stimulating hormone, adrenocorticotrophic hormone, luteinizing hormone and follicle stimulating hormone
D To synthesize hormones from hypothalamus

The correct answer is:
To produce growth hormone, prolactin, thyroid stimulating hormone, adrenocorticotrophic hormone, luteinizing hormone and follicle stimulating hormone

Solution:
The pars distalis region of the pituitary gland, commonly called the anterior pituitary, produces growth hormone (GH), prolactin (PRL), thyroid stimulating hormone (TSH), adrenocorticotrophic hormone (ACTH), luteinizing hormone (LH) and follicle stimulating hormone (FSH).

Topic: Biology, Chemical Coordination and Integration, NEET
What is the function of the pectoral and pelvic girdle bones?

Options:
A Articulation with the upper and lower limbs respectively with the axial skeleton
B Protection of internal organs
C Support for the head
D Movement of the thorax

The correct answer is:
Articulation with the upper and lower limbs respectively with the axial skeleton

Solution:
The pectoral and pelvic girdle bones help in the articulation of the upper and the lower limbs respectively with the axial skeleton.

Topic: Biology, Locomotion and Movement, NEET
What is the function of the penis?

Options:
A To store sperms
B To provide nutrition to germ cells
C To facilitate insemination
D To transport sperms

The correct answer is:
To facilitate insemination

Solution:
The penis is made up of special tissue that helps in the erection of the penis and facilitates insemination.

Topic: Biology, Human Reproduction, NEET
What is the function of the pericardium in the human circulatory system?

Options:
A To protect the heart
B To regulate blood pressure
C To store blood
D To pump blood

The correct answer is:
To protect the heart

Solution:
The pericardium in the human circulatory system protects the heart by enclosing it and helps to keep it in place.

Topic: Biology, Body Fluids and Circulation, NEET
What is the function of the permease gene in the lac operon?

Options:
A It codes for beta-galactosidase
B It codes for permease
C It codes for transacetylase
D It increases the permeability of the cell to β-galactosides

The correct answer is:
It increases the permeability of the cell to β-galactosides

Solution:
The y gene codes for permease, which increases the permeability of the cell to β-galactosides, allowing them to enter the cell.

Topic: Biology, Molecular Basis of Inheritance, NEET
What is the function of the pharynx?

Options:
A Serves as a passage for food
B Serves as a passage for air
C Serves as a common passage for food and air
D Serves as a passage for waste

The correct answer is:
Serves as a common passage for food and air

Solution:
The oral cavity leads into a short pharynx which serves as a common passage for food and air. The oesophagus and the trachea (wind pipe) open into the pharynx.

Topic: Biology, Digestion and Absorption, NEET