NEET 2025 Syllabus Released by NTA – Subject wise Revised Syllabus

• Units of measurements. System of Units, S I Units, fundamental and derived units, least count. significant figures, Errors in measurements, and Dimensions of Physics quantities. dimensional analysis, and its applications.

• the frame of reference, motion in a straight line. Position- time graph. speed and velocity: Uniform and non-uniform motion. average speed and instantaneous velocity. uniformly accelerated motion. velocity-time, position-time graph, relations for uniformly accelerated motion- Scalars and Vectors. Vector. Addition and subtraction, scalar and vector products. Unit Vector. Resolution of a Vector. Relative Velocity. Motion in a plane, Projectile Motion. Uniform Circular Motion.

• Force and inertia, Newton’s First Law of motion: Momentum, Newton’s Second Law of motion, Impulses: Newton’s Third Law of motion. I-aw of conservation of linear momentum and its applications. Equilibrium of concurrent forces.
• Static and Kinetic friction, laws of friction. rolling friction.
• Dynamics of uniform circular motion: centripetal force and its applications: a vehicle on a level
  circular road. vehicle on a banked road.

• Work done by a constant force and a variable force; kinetic and potential energies. work-energy theorem, power.
• The potential energy of spring conservation of mechanical energy. conservative and nonconservative forces; motion in a vertical circle: Elastic and inelastic collisions in one and two dimensions.

• Center of the mass of a two-particle system, Centre of the mass of a rigid body: Basic concepts of rotational motion; moment of a force; torque, angular momentum, conservation of angular momentum and its applications;
• The moment of inertia, the radius of gyration, values of moments of inertia for simple geometrical objects, parallel and perpendicular axes theorems. and their applications. Equilibrium of rigid bodies. rigid body rotation and equations of rotational motion, comparison of linear and rotational motions.

• The universal law of gravitation. Acceleration due to gravity and its variation with altitude and depth. Kepler’s law oi planetary motion. Gravitational potential energy; gravitational potential. Escape velocity, Motion of a satellite, orbital velocity, time period, and energy of satellite.

• Elastic behavior, Stress-strain relationship, Hooke’s Law. Young’s modulus, bulk modulus,\ modulus of rigidity. Pressure due to a fluid column; Pascal’s law and its applications. Effect of gravity on fluid pressure.
• Viscosity. Stokes’ law. terminal velocity, streamline, and turbulent flow.critical velocity Bemoulli’s principle and its applications.
• Surface energy and surface tension, angle of contact, excess of pressure across a curved surface, application of surface tension – drops, bubbles, and capillary rise. Heat, temperature, thermal expansion; specific heat capacity, calorimetry; change of state, latent heat. Heat transfer conduction, convection, and radiation.

• Thermal equilibrium, zeroth law of thermodynamics, the concept of temperature. Heat, work, and internal energy. The first law of thermodynamics, isothermal and adiabatic processes.
• The second law of thermodynamics: reversible and irreversible processes.

• Equation of state of a perfect gas, work done on compressing a gas, Kinetic theory of gases – assumptions, the concept of pressure. Kinetic interpretation of temperature: RMS speed of gas molecules: Degrees of freedom. Law of equipartition of energy and applications to specific heat capacities of gases; Mean free path. Avogadro’s number.

• Oscillations and periodic motion – time period, frequency, displacement as a function of time. Periodic functions. Simple harmonic motion (S.H.M.) and its equation; phase: oscillations of a spring -restoring force and force constant: energy in S.H.M. – Kinetic and potential energies; Simple pendulum – derivation of expression for its time period:
• Wave motion. Longitudinal and transverse waves, speed of traveling wave. Displacement relation for a progressive wave. Principle of superposition of waves, reflection of waves. Standing waves in strings and organ pipes, fundamental mode and harmonics- Beats.

• Electric charges: Conservation of charge. Coulomb’s law forces between two point charges, forces between multiple charges: superposition principle and continuous charge distribution.
• Electric field: Electric field due to a point charge, Electric field lines. Electric dipole, Electric field due to a dipole. Torque on a dipole in a uniform electric field’
• Electric flux’ Gauss’s law and its applications to find field due to infinitely long uniformly charged straight wire, uniformly charged infinite plane sheet and uniformly charged thin spherical shell. Electric potential and its calculation for a point charge, electric dipole and system of charges potential difference, Equipotential surfaces, Electrical potential energy of a system of two point charges, and of electric dipole in an electrostatic field.
• conductors and insulators. Dielectrics and electric polarization, capacitors, and capacitances,, the combination of capacitors in series and parallel, capacitance of a parallel plate capacitor with and without dielectric medium bet*’een the plates. Energy is stored in a capacitor.

• Electric current. Drift velocity, mobility, and their relation with electric current. Ohm’s law. Electrical resistance.. V-l characteristics of ohmic and non-ohmic conductors. Electrical energy and power. Electrical resistivity and conductivity. Series and parallel combinations of resistors; Temp€rature dependence of resistance.
• Internal resistance, potential difference, and emf of a cell, a combination of cells in series and parallel. Kirchhoff’s laws and their applications. wheatstone bridge. Metre Bridge.

• Biot – Savart law and its application to the current carrying circular loop. Ampere,s larv and its applications to infinitely long current carrying straight wire and solenoid. Fo.”e on a moving charge in uniform magnetic and electric fields.
• Force on a current-carrying conductor in a uniform magnetic field. The force between two parallel currents carrying conductors definition of ampere. Torque experienced by a current loop in a uniform magnetic field: Moving coil galvanometer, its sensitivity, and conversion to ammeter and voltmeter.
• Current loop as a magnetic dipole and its magnetic dipole moment. Bar magnet as an equivalent solenoid. magnetic field lines; Magnetic field due to a magnetic dipole (bar magnet) along its axis and perpendicular to its axis. Torque on a magnetic dipole in a uniform magnetic field. para,- dia- and ferromagnetic substances with examples, the effect of temperature on magnetic properties.

• Electromagnetic induction: Faraday’s law. Induced emf and cunent: Lenz,s Law, Eddy currents. Self and mutual inductance. Alternating currents, peak and RMS value of alternating current/ voltage: reactance and impedance: LCR series circuits, resonance: power in AC circuits, wattless current. AC generator and transformer.

• Displacement current. Electromagnetic waves and their characteristics, Transverse nature of electromagnetic waves, Electromagnetic spectrum (radio waves, microwaves, infrared, visible, ultraviolet. X-rays. Gamma rays), Applications of e.m. waves.

• Reflection of light, spherical minors, mirror formula. Refraction of right at the plane and spherical surfaces, thin lens formula, and lens maker formula. Total internal reflection and its applications.
• Magnification. Power of a Lens. Combination of thin lenses in contact. Refraction of light through a prism. Microscope and Astronomical Telescope (reflecting and refracting ) and their magnifying powers.
• Wave optics: wavefront and Huygens’ principle. Laws of reflection and refraction using Huygens principle. Interference, Young’s double-slit experiment, and expression for fringe width, coherent sources, and sustained interference of light. Diffraction due to a single slit, width of central maximum. Polarization, plane-polarized light: Brewster’s law, uses of plane-polarized light and Polaroid.

• Dual nature of radiation. Photoelectric effect. Hertz and Lenard’s observations; Einstein’s photoelectric equation: particle nature of light. Matter waves-wave nature of particle, de Broglie relation.

• Alpha-particle scattering experiment; Rutherford’s model of atom; Bohr model, energy levels’ hydrogen spectrum. Composition and size of nucleus, atomic masses, Mass-energy relation, mass defect; binding energy per nucleon and its variation with mass number, nuclear fission, and fusion.

• Semiconductors; semiconductor diode: I-V characteristics in forward and reverse bias; diode as a rectifier; I-V characteristics of LED. the photodiode, solar cell, and Zener diode; Zener diode as a voltage regulator. Logic gates (OR. AND. NOT. NAND and NOR).

• Vernier calipers – it’s used to measure the internal and external diameter and depth of a vessel.
• Screw gauge – it’s use to determine the thickness/diameter of thin sheet/wire.
• Simple pendulum – dissipation of energy by plotting a graph between the square of amplitude and time.
• Metre Scale – the mass of a given object by the principle of moments.
• Young’s modulus of elasticity of the material of a metallic wire.
• Surface tension of water by capillary rise and effect of detergents.
• Co-efficient of Viscosity of a given viscous liquid by measuring the terminal velocity of a given spherical body.
• Speed of sound in air at room temperature using a resonance tube.
• Specific heat capacity of a given (i) solid and (ii) liquid by method of mixtures.
• The resistivity of the material of a given wire using a metre bridge.
• The resistance of a given wire using Ohm’s law.
• Resistance and figure of merit of a galvanometer by half deflection method.
• The focal length of;

• Convex mirror
• Concave mirror, and
• Convex lens, using the parallax method.

• The plot of the angle of deviation vs angle of incidence for a triangular prism.
• The refractive index of a glass slab using a traveling microscope.
• characteristic curves of a p-junction diode in forward and reverse bias.
• characteristic curves of a Zener diode and finding reverse breakdown voltage.
• Identificatic’n of Di.de. LED,. Resistor. A capacitor from a mixed collection of such items

Concept of oxidation and reduction, redox reactions, oxidation number, balancing redox reactions in terms of loss and gain of electron and change in oxidation numbers, applications of redox reactions

• What is living?: Biodiversity; Need for classification;; Taxonomy & Systematics; Concept of species and taxonomical hierarchy; Binomial nomenclature;
• Five kingdom classifications: salient features and classification of Monera; Protista and Fungi into major groups: Lichensl Viruses and Viroids.
• .salient features and classification of plants into major groups-Algae, Bryophytes, Pteridophytes, Gymnosperms (three to five salient and distinguishing features and at least two examples of each category);
• Salient features and classification of animals non chordate up to phyla level and chordate up to classes level (three to five salient features and at least two examples)’

• Morphology and modifications; Tissues; Anatomy and functions of different parts of flowering plants: Root, stem, leaf, inflorescence- cymose and racemose, flower’ fruit and seed 1To be dealt along with the relevant practical of the Practical Syllabus) Family (malvaceae, Cruciferae, leguminoceae, compositae, graminae)’
• Animal tissues; Morphology, anatomy, and functions of different systems (digestive, circulatory, respiratory, nervous, and reproductive) of an insect (Frog)’ (Brief account only)

• cell theory and cell as the basic unit of life; Structure of prokaryotic and eukaryotic cell; Plant cell and animal cell; Cell envelope’ cell membrane, cell wall; Cell organelle structure and function; Endomembrane system-endoplasmic reticulum’ Golgi bodies’ lysosomes, vacuoles; mitochondria, ribosomes, plastids, microbodies; Cytoskeleton’ cilia flag”lla centrioles (ultrastructure and function); Nucleus-nuclear membrane’ chromatin, nucleolus.
• chemical constituents of living cells: Biomolecules-structure and function of proteins, carbohydrates. lipids, nucleic acids; Enzymes-types, properties’ enzyme action’ classification and nomenclature of enzymes
• B Cell division: Cell cycle, mitosis, meiosis, and their significance

• Photosynthesis: Photosynthesis as a means of Autotrophic nutrition; Site of photosynthesis takes place; pigments involved in Photosynthesis (Elementary-.idea); Photochemical and biosynthetic phases of photosynthesis; Cyclic and non-cyclic and photophosphorylation; chemiosmotic hypothesis; photorespiration c3 and c4 pathways; Factors affecting photosynthesis.
• Respiration: Exchange gases; cellular respiration-glycolysis. fermentation (anaerobic), TCA cycle and electron transport system (aerobic); Energy relations- Number of ATP molecules generated; Amphibolic pathways; Respiratory quotient.
• Plant growth and development: Seed germination; phases of plant growth and plant growth rate; Conditions of growth; Differentiation, differentiation, and redifferentiation; Sequence of developmental process in a plant cell; Growth regulators auxin, gibberellin, cy. cytokinin, ethylene, ABA;

• Breathing and Respiration: Respiratory organs in animals (recall only); Respiratory system in humans; Mechanism of breathing and its regulation in humans-Exchange of gases, transport of gases and regulation of respiration Respiratory volumes; Disorders related to respiration-Asthm4 Emphysema, Occupational respiratory disorders.
• ‘ Body fluids and circulation: composition of blood, blood groups, coagulation of blood; composition of lymph and its function; Human circulatory system-structure of human heart and blood vessels; cardiac cycle, cardiac output. ECG. Double circulation; Regulation of cardiac activity; Disorders of circulatory system-Hypertension, coronary artery disease, Angina pectoris, Heart failure.
• Excretory products and their elimination: Modes of excretion- Ammonotelism, ureotelism, uricotelism; Human excretory system structure and function; Urine formation, osmoregulation; Regulation of kidney function-Renin-angiotensin, Atrial Natriuretic Factor’ ADH and Diabetes insipidus; Role of other organs in excretion; Disorders; Uraemia, Renal failure, Renal calculi, Nephritis; Diarlsis and artificial kidney.
• Locomotion and Movement: Types of movement- ciliary, flagellar, muscular; Skeletal muscle- contractile proteins and muscle contraction; Skeletal system and its functions (To be dealt with in the relevant practical of practical syllabus); Joints; Disorders of muscular and skeletal system-Myasthenia gravis, Tetany, Muscular dystrophy, Arthritis, Osteoporosis, Gout.
• Neural control and coordination: Neuron and nerves; Nervous system in human central nervous system, peripheral nervous system, and visceral nervous system; Generation and conduction of nerve impulses;
• chemical coordination and regulation: Endocrine glands and hormones; Human endocrine system-Hypothalamus, pituitary, pineal, Thyroid, parathyroid, Adrenal, Pancreas, Gonads; Mechanism of hormone action (Elementary idea); Role of hormones as messengers and regulators, Hypo-and hyperactivity and related disorders (common disorders e.g. Dwarfism, Acromegaly, Cretinism, goiter, exophthalmic goiter, diabetes, Addison’s disease).

(lmportant: Diseases and disorders mentioned above to be dealt with in brief.)

• Sexual reproduction in flowering plants: Flower structure; Development of male and female gametophytes; Pollination-types, agencies, and examples; Outbreeding devices; Pollen-Pistil interaction; Double fertilization; Post fertilization events- Development of endosperm and embryo, Development of seed and formation of fruit; Special modes apomixis, parthenocarpy, polyembryony; Significance of seed and fruit formation.
• Human Reproduction: Male and female reproductive systems; Microscopic anatomy of testis and ovary; Gametogenesis-spermatogenesis & oogenesis; Menstrual cycle; Fertilisation, embryo development up to blastocyst formation, implantation: Pregnancy and placenta formation (Elementary idea); Parturition (Elementary idea); Lactation (Elementary idea).
• Reproductive health: Need for reproductive health and prevention of sexually transmitted diseases (STD); Birth control-Need and Methods, Contraception and Medical Termination of Pregnancy (MTP); Amniocentesis; lnfertility and assisted reproductive technologies – IVF, ZIFT, GIFT (Elementary idea for general awareness).

• Heredity and variation: Mendelian inheritance; Deviations from MendelismIncomplete dominance, Co-dominance, Multiple alleles, and Inheritance of blood groups, Pleiotropy; Elementary idea of polygenic inheritance; Chromosome theory of inheritance; Chromosomes and genes; Sex determination-l-n humans’ birds, honey bee; Linkage and crossing over; Sex-linked inheritance-Haemophilia colour blindness; Mendelian disorders in humans-Thalassemia; chromosomal disorders in humans; Down’s syndrome, Tumer’s and Klinefelter’s syndromes.
• Molecular basis of Inheritance: Search for genetic material and DNA as genetic material; Structure of DNA and RNA; DNA packaging; DNA replication; Central dogma; Transcription, genetic code, translation; Gene expression and regulation- Lac Operon; Genome and human genome project; DNA finger printing, protein biosynthesis.
• Evolution: Origin of life; Biological evolution and evidence for biological evolution from Paleontology, comparative anatomy, embryology, and molecular evidence); Darwin, ‘s contribution, modern synthetic theory of Evolution; Mechanism of evolution Variation (Mutation and Recombination) and Natural Selection with examples, types of natural selection; gene flow and genetic drift; Hardy-weinberg’s principle; Adaptive Radiation; Human evolution.

• Health and Disease; Pathogens; parasites causing human diseases (Malaria, Filariasis, Ascariasis. Typhoid, Pneumonia, common cold, amoebiasis, ring worm, dengue, chikungunya); Basic concepts of immunology-vaccines; Cancer, HIV and AIDS; Adolescence, drug, and alcohol abuse.Tobacco abuse
• Microbes in human welfare: In household food processing, industrial production, sewage treatment, energy generation, and as biocontrol agents and biofertilizers.

• Principles and process of Biotechnology: Genetic engineering (recombinant DNA technology).
• Application of Biotechnology in Health and Agriculture: Human insulin and vaccine production, gens therapy Cienbtically modified:organisms-Br crops: Transgenic Animals Biosafety issues-Biopirac;r and patents.

• organisms and environrnentPopulation intentions-mutualism, competition.predation, parasitism Population attributes-growth. birth rate and death rate, age distribution.
• Ecosystem: Patterns, components; productivity and decomposition: Energy flow: Pyramids of number, biomass. energy
• Biodiversity and its conservation: concept of Biodiversity; patterns of Biodiversity: Importance of Biodiversity; Loss of Biodiversity Biodiversity conservation; Hotspots, endangered organisms. extinction; Red Data Book. biosphere reserves, National parks, and sanctuaries, Sacred Groves.