datavorous/entrance-exam-dataset huggingface dataset:
What is the role of the ileo-caecal valve in the large intestine?

Options:
A It prevents the backflow of the faecal matter
B It regulates the secretion of mucus
C It controls the absorption of water and minerals
D It controls the release of hormones

The correct answer is:
It prevents the backflow of the faecal matter

Solution:
The ileo-caecal valve in the large intestine prevents the back flow of the faecal matter from the caecum to the ileum.

Topic: Biology, Digestion and Absorption, NEET
What is the role of the immune system in preventing diseases?

Options:
A It helps in killing pathogens
B It helps in blocking the entry of pathogens
C Both A) and B)
D None of the above

The correct answer is:
Both A) and B)

Solution:
The immune system helps in blocking the entry of pathogens into our body and also helps in killing pathogens if they succeed in gaining entry to our body.

Topic: Biology, Human Health and Diseases, NEET
What is the role of the Indian Government in regulating the manipulation of living organisms?

Options:
A To evaluate the morality of human activities that might help or harm living organisms
B To make decisions regarding the validity of GM research and the safety of introducing GM-organisms for public services
C To regulate the manipulation of living organisms by the human race
D To control the problems with patents granted for the usage of living organisms for public services

The correct answer is:
To regulate the manipulation of living organisms by the human race

Solution:
The Indian Government has set up organisations such as GEAC (Genetic Engineering Approval Committee) to regulate the manipulation of living organisms by the human race.

Topic: Biology, Biotechnology and Its Applications, NEET
What is the role of the JGA in regulation of the kidneys?

Options:
A Vasodilation
B Vasoconstriction
C Complex regulatory role
D Stimulation of the adrenal cortex

The correct answer is:
Complex regulatory role

Solution:
The JGA plays a complex regulatory role by releasing renin in response to a fall in glomerular blood flow/pressure/GFR, which triggers the Renin-Angiotensin mechanism.

Topic: Biology, Excretory Products and their Elimination, NEET
What is the role of the lead anode in a lead storage battery?

Options:
A To generate electrical energy
B To store electrical energy
C To act as the cathode material
D To undergo a chemical reaction with sulfuric acid

The correct answer is:
To undergo a chemical reaction with sulfuric acid

Solution:
The lead anode in a lead storage battery undergoes a chemical reaction with sulfuric acid as part of the cell reactions.

Topic: Chemistry, Electrochemistry, NEET
What is the role of the limbic lobe in the brain?

Options:
A It is involved in the regulation of sensory and motor signaling
B It contains centers that control body temperature and urge for eating and drinking
C It is involved in the regulation of sexual behavior, emotional reactions and motivation
D It is responsible for complex functions like intersensory associations, memory and communication

The correct answer is:
It is involved in the regulation of sexual behavior, emotional reactions and motivation

Solution:
The limbic lobe, 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 role of the liver in digestion?

Options:
A It secretes bile into the alimentary canal to aid in the digestion of fats
B It secretes insulin into the alimentary canal to aid in the digestion of carbohydrates
C It secretes enzymes into the alimentary canal to aid in the digestion of proteins
D It secretes saliva into the alimentary canal

The correct answer is:
It secretes bile into the alimentary canal to aid in the digestion of fats

Solution:
The liver plays an important role in the digestion of fats by secreting bile into the alimentary canal. Bile emulsifies fats, breaking them down into smaller droplets that can be more easily digested by enzymes.

Topic: Biology, Digestion and Absorption, NEET
What is the role of the media in promoting drug and alcohol abuse among adolescents?

Options:
A Helping to reduce the perception of drug and alcohol abuse as 'cool'
B Promoting the dangers and consequences of drug and alcohol use
C Encouraging drug and alcohol use as a way of dealing with stress
D Reinforcing the perception that drug and alcohol abuse is 'cool' or progressive

The correct answer is:
Reinforcing the perception that drug and alcohol abuse is 'cool' or progressive

Solution:
Television, movies, newspapers, internet also help to promote the perception that it is 'cool' or progressive to smoke, use drugs or alcohol.

Topic: Biology, Human Health and Diseases, NEET
What is the role of the membrane system within the chloroplast?

Options:
A Synthesis of sugar
B Synthesis of ATP and NADPH
C Trapping of light energy
D Formation of starch

The correct answer is:
Trapping of light energy

Solution:
The membrane system within the chloroplast is responsible for trapping light energy and also for the synthesis of ATP and NADPH.

Topic: Biology, Photosynthesis in Higher Plants, NEET
What is the role of the mucus in the intestinal juice?

Options:
A It protects the intestinal mucosa from acid
B It provides an alkaline medium for enzymatic activities
C It helps in adhering the waste (undigested) particles together
D All of the above

The correct answer is:
All of the above

Solution:
The mucus, along with the bicarbonates from the pancreas, protects the intestinal mucosa from acid and provides an alkaline medium for enzymatic activities. It also helps in adhering the waste (undigested) particles together and lubricating the undigested material for easy passage.

Topic: Biology, Digestion and Absorption, NEET
What is the role of the NADP reductase enzyme in the process of photosynthesis?

Options:
A It synthesizes ATP
B It carries out facilitated diffusion of protons across the membrane
C It reduces NADP⁺ to NADPH⁺ H⁺
D It activates ATP synthase enzyme

The correct answer is:
It reduces NADP⁺ to NADPH⁺ H⁺

Solution:
The NADP reductase enzyme is located on the stroma side of the membrane. Along with electrons that come from the acceptor of electrons of PS I, protons are necessary for the reduction of NADP⁺ to NADPH⁺ H⁺.

Topic: Biology, Photosynthesis in Higher Plants, NEET
What is the role of the negatively charged sheath around globules in the cleansing action of soap?

Options:
A To attract other globules
B To repel water molecules
C To prevent globules from coagulating
D To enhance emulsification

The correct answer is:
To prevent globules from coagulating

Solution:
The negatively charged sheath around globules prevents them from coming together and forming aggregates.

Topic: Chemistry, Surface Chemistry, NEET
What is the role of the nitrogen atom in cationic detergents?

Options:
A Producing fragrance
B Creating color
C Providing a positive charge
D Forming hydrogen bonds

The correct answer is:
Providing a positive charge

Solution:
The nitrogen atom in cationic detergents carries a positive charge.

Topic: Chemistry, Chemistry in Everyday Life, NEET
What is the role of the nuclear envelope during metaphase?

Options:
A It disintegrates to allow the chromosomes to spread through the cytoplasm
B It holds the chromosomes in place
C It aids in the attachment of spindle fibres to the chromosomes
D It is not involved in metaphase

The correct answer is:
It is not involved in metaphase

Solution:
The nuclear envelope disintegrates at the start of mitosis, so it is not involved in metaphase.

Topic: Biology, Cell Cycle and Cell Division, NEET
What is the role of the oesophagus in the digestive process?

Options:
A It produces enzymes that break down food
B It propels food to the stomach
C It neutralizes stomach acid
D It regulates blood sugar levels

The correct answer is:
It propels food to the stomach

Solution:
The oesophagus is a muscular tube that connects the pharynx to the stomach. Its role in the digestive process is to propel food from the pharynx to the stomach through the process of peristalsis. The walls of the oesophagus are lined with muscles that contract in a coordinated manner to push the food through the tube and into the stomach.

Topic: Biology, Digestion and Absorption, NEET
What is the role of the ovule in seed plants?

Options:
A Carrier of female gametes
B Carrier of male gametes
C Transporter of female gametes
D Transporter of male gametes

The correct answer is:
Carrier of female gametes

Solution:
The ovule in seed plants has the egg and is the carrier of female gametes.

Topic: Biology, Reproduction in Organisms, NEET
What is the role of the parathyroid glands?

Options:
A They secrete thymosins
B They secrete melatonin
C They secrete parathyroid hormone
D They secrete epinephrine and norepinephrine

The correct answer is:
They secrete parathyroid hormone

Solution:
The parathyroid glands secrete parathyroid hormone (PTH), which increases the blood Ca2+ levels and plays a major role in calcium homeostasis.

Topic: Biology, Chemical Coordination and Integration, NEET
What is the role of the pharynx in the swallowing process?

Options:
A It produces enzymes that break down food
B It receives the bolus of food from the mouth and propels it into the oesophagus
C It regulates the flow of bile and pancreatic juice
D It neutralizes stomach acid

The correct answer is:
It receives the bolus of food from the mouth and propels it into the oesophagus

Solution:
The pharynx is a muscular tube that connects the back of the mouth to the oesophagus. Its role in the swallowing process is to receive the bolus of food from the mouth and propel it into the oesophagus.

Topic: Biology, Digestion and Absorption, NEET
What is the role of the pigments in photosystem PS I and PS II?

Options:
A Absorb red light of 700 nm wavelength
B Transfer electrons to NADP⁺
C Excite electrons in PS I
D Absorb different wavelengths of light and make photosynthesis more efficient

The correct answer is:
Absorb different wavelengths of light and make photosynthesis more efficient

Solution:
The pigments in photosystem PS I and PS II 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 pineal gland?

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 secretes melatonin

Solution:
The pineal gland secretes melatonin, which plays a crucial role in regulating the 24-hour rhythms of the body, such as sleep and body temperature.

Topic: Biology, Chemical Coordination and Integration, NEET
What is the role of the pistil in pollen-pistil interaction?

Options:
A To transport pollen to the ovules
B To promote fertilization
C To recognize and accept or reject the pollen
D To produce the ovules

The correct answer is:
To recognize and accept or reject the pollen

Solution:
The pistil has the ability to recognize the pollen and determine if it is of the right type (compatible) or the wrong type (incompatible). If it is compatible, the pistil promotes post-pollination events that lead to fertilization, and if it is incompatible, the pistil rejects the pollen.

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET
What is the role of the pituitary gland?

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 produces six trophic hormones

Solution:
The pituitary gland is divided into three parts and the pars distalis produces six trophic hormones, which regulate the growth and development of somatic tissues and activities of peripheral endocrine glands.

Topic: Biology, Chemical Coordination and Integration, NEET
What is the role of the placenta in endocrine regulation?

Options:
A It acts as an endocrine tissue and produces hormones
B It helps in the transport of substances to and from the ovary
C It secretes hormones like relaxin
D It helps in the transport of substances to and from the uterus

The correct answer is:
It acts as an endocrine tissue and produces hormones

Solution:
The placenta also acts as an endocrine tissue and produces several hormones like human chorionic gonadotropin (hCG), human placental lactogen (hPL), estrogens, progestogens, etc.

Topic: Biology, Human Reproduction, NEET
What is the role of the pneumotaxic centre in regulating the respiratory system?

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

The correct answer is:
It controls the pattern of breathing

Solution:
The pneumotaxic centre in the pons region of the brain can moderate the functions of the respiratory rhythm centre. Neural signals from this centre can reduce the duration of inspiration and thereby alter the respiratory rate.

Topic: Biology, Breathing and Exchange of Gases, NEET
What is the role of the pons in the hindbrain?

Options:
A Control respiration, cardiovascular reflexes and gastric secretions
B Interconnect different regions of the brain
C Regulate sexual behaviour and emotional reactions
D Provide additional space for neurons

The correct answer is:
Interconnect different regions of the brain

Solution:
Pons consists of fibre tracts that interconnect different regions of the brain.

Topic: Biology, Neural Control and Coordination, NEET
What is the role of the potassium salt of phthalimide in the Gabriel synthesis?

Options:
A It acts as a reducing agent.
B It serves as a strong acid catalyst.
C It initiates nucleophilic substitution reactions.
D It stabilises the reaction mixture.

The correct answer is:
It initiates nucleophilic substitution reactions.

Solution:
The potassium salt of phthalimide is a nucleophile that initiates nucleophilic substitution reactions with alkyl halides in the Gabriel synthesis.

Topic: Chemistry, Amines, NEET
What is the role of the primary endosperm nucleus (PEN) in pollination?

Options:
A To provide nourishment to the developing embryo
B To fuse with the egg cell
C To develop into endosperm
D To guide the pollen tubes to the ovules

The correct answer is:
To develop into endosperm

Solution:
The primary endosperm nucleus is the one that is formed by the fusion of two polar nuclei in the embryo sac of seed by the haploid sperms.The sperm that fuse with polar nuclei is the second sperm, first sperm fuses with the egg cell or ovum to form Zygote.

Topic: Biology, Plant Kingdom, NEET
What is the role of the radula in molluscs?

Options:
A Excretory organ
B Gather Food
C For reproduction
D For Swimming

The correct answer is:
Gather Food

Solution:
The radula is a special structure in molluscs which is used to scrape and scratch the food to gather food.

Topic: Biology, Animal Kingdom, NEET
What is the role of the release factor in gene expression?

Options:
A To regulate splicing
B To transport mRNA from nucleus to cytoplasm
C To terminate translation
D To activate transcription

The correct answer is:
To terminate translation

Solution:
At the end of translation, a release factor binds to the stop codon, terminating translation and releasing the complete polypeptide from the ribosome.

Topic: Biology, Molecular Basis of Inheritance, NEET
What is the role of the respiratory pathway in the breakdown and synthesis of fatty acids?

Options:
A Catabolism only
B Anabolism only
C Both catabolism and anabolism
D Neither catabolism nor anabolism

The correct answer is:
Both catabolism and anabolism

Solution:
The respiratory pathway is involved in both the breakdown and synthesis of fatty acids and thus it would be better to consider it as an amphibolic pathway rather than as a catabolic one.

Topic: Biology, Respiration in Plants, NEET
What is the role of the respiratory rhythm centre 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 controls the rate of breathing

Solution:
A specialised centre present in the medulla region of the brain called the respiratory rhythm centre is primarily responsible for regulation of the respiratory rhythm.

Topic: Biology, Breathing and Exchange of Gases, NEET
What is the role of the selectable marker in cloning genes of interest?

Options:
A To increase the number of transformed cells
B To study the behavior of transformed cells
C To provide a way to select transformed cells
D To produce recombinant DNA

The correct answer is:
To provide a way to select transformed cells

Solution:
The selectable marker provides a way to select transformed cells, which have taken up, to provide a way to select transformed cells.

Topic: Biology, Biotechnology - Principles and Processes, NEET
What is the role of the sphincter of Oddi?

Options:
A To regulate the flow of bile and pancreatic juice
B To produce enzymes and hormones
C To store and concentrate bile
D To neutralize stomach acid

The correct answer is:
To regulate the flow of bile and pancreatic juice

Solution:
The sphincter of Oddi is a muscle that surrounds the common hepato-pancreatic duct and regulates the flow of bile and pancreatic juice into the duodenum.

Topic: Biology, Digestion and Absorption, NEET
What is the role of the spindle in Metaphase 1 of meiosis?

Options:
A To separate homologous chromosomes
B To attach to the kinetochore of homologous chromosomes
C To keep sister chromatids associated at their centromeres
D To dissolve the synaptonemal complex

The correct answer is:
To attach to the kinetochore of homologous chromosomes

Solution:
During Metaphase 1, the microtubules from the opposite poles of the spindle attach to the kinetochore of homologous chromosomes.

Topic: Biology, Cell Cycle and Cell Division, NEET
What is the role of the sub-lingual salivary glands in digestion?

Options:
A They secrete enzymes to break down carbohydrates
B They secrete enzymes to break down fats
C They secrete enzymes to break down proteins
D They secrete saliva into the buccal cavity to aid in the process of swallowing

The correct answer is:
They secrete saliva into the buccal cavity to aid in the process of swallowing

Solution:
The sub-lingual salivary glands are located below the tongue, They secrete saliva into the buccal cavity to aid in the process of swallowing and also contain enzymes that help to break down food. Saliva also helps to lubricate food, making it easier to swallow and digest.

Topic: Biology, Digestion and Absorption, NEET
What is the role of the teeth 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 move food to the back of the mouth for swallowing
D To grind and crush food

The correct answer is:
To grind and crush food

Solution:
The teeth are responsible for grinding and crushing food. They play an important role in the mastication of food by breaking it down into smaller pieces that are easier to swallow and digest.

Topic: Biology, Digestion and Absorption, NEET
What is the role of the thymus 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 thymosins

Solution:
The thymus gland secretes thymosins, which play a major role in the differentiation of T-lymphocytes and provide cell-mediated immunity. It also increases the production of antibodies to provide humoral immunity.

Topic: Biology, Chemical Coordination and Integration, NEET
What is the role of the thyroid gland hormones?

Options:
A They regulate calcium levels in the blood
B They provide cell-mediated immunity
C They regulate metabolism, growth, and development of organs
D They increase the production of antibodies

The correct answer is:
They regulate metabolism, growth, and development of organs

Solution:
The thyroid gland hormones play an important role in regulating the basal metabolic rate, development, and maturation of the central nervous system, erythropoiesis, and metabolism of carbohydrates, proteins and fats, menstrual cycle.

Topic: Biology, Chemical Coordination and Integration, NEET
What is the role of the tongue 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 move food to the back of the mouth for swallowing
D To neutralize stomach acid

The correct answer is:
To move food to the back of the mouth for swallowing

Solution:
The tongue is an important muscle for the mastication of food. It helps to mix the food with the saliva, and to move it to the back of the mouth for swallowing.

Topic: Biology, Digestion and Absorption, NEET
What is the role of the urinary bladder in the excretory system?

Options:
A To store urine
B To regulate osmotic pressure
C To filter blood
D To secrete electrolytes

The correct answer is:
To store urine

Solution:
The urinary bladder stores urine until a voluntary signal from the CNS carries out its release through the urethra, i.e., micturition.

Topic: Biology, Excretory Products and their Elimination, NEET
What is the role of the vegetative cell in the mature pollen grain?

Options:
A To provide nutrition to the generative cell
B To produce male gametes
C To protect the pollen grain from external damage
D To regulate the temperature of the pollen grain

The correct answer is:
To provide nutrition to the generative cell

Solution:
The mature pollen grain contains two cells, the vegetative cell and the generative

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET
What is the role of the villi in the absorption process?

Options:
A They produce enzymes
B They transport absorbed substances into the bloodstream
C They provide surface area for absorption
D They neutralize stomach acid

The correct answer is:
They provide surface area for absorption

Solution:
Villi are finger-like projections that line the small intestine. They increase the surface area for absorption by providing more area for the absorption of nutrients.

Topic: Biology, Digestion and Absorption, NEET
What is the role of these water-soluble organic compounds as indicators in acid-base titrations?

Options:
A They do not play a role in titrations.
B They act as strong acids in titrations.
C They help determine H+ ion concentration by changing color.
D They are used as bases in titrations.

The correct answer is:
They help determine H+ ion concentration by changing color.

Solution:
These water-soluble organic compounds act as indicators in acid-base titrations and help determine H+ ion concentration by changing color.

Topic: Chemistry, Ionic Equilibrium, NEET
What is the role of thyrocalcitonin in the body?

Options:
A Regulate the basal metabolic rate
B Regulate the blood calcium levels
C Control the metabolism of carbohydrates, proteins and fats
D Support red blood cell formation

The correct answer is:
Regulate the blood calcium levels

Solution:
The thyroid gland secretes a protein hormone called thyrocalcitonin (TCT) which regulates the blood calcium levels.

Topic: Biology, Chemical Coordination and Integration, NEET
What is the role of tonoplast in plant cells?

Options:
A To transport ions and other materials against concentration gradients into the vacuole
B To engulf food particles
C To store water and other materials
D To regulate osmotic pressure

The correct answer is:
To transport ions and other materials against concentration gradients into the vacuole

Solution:
Tonoplast facilitates the transport of a number of ions and other materials against concentration gradients into the vacuole, hence their concentration is significantly higher in the vacuole than in the cytoplasm.

Topic: Biology, Cell - The Unit of Life, NEET