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NEET 2026 — Complete Syllabus

The full topic list with subject breakdown, weightage, and study resources. Updated May 2026.

Official Paper Structure

NEET is a single paper of 3 hours 20 minutes (200 minutes). 200 questions across three subjects: Physics (50 questions), Chemistry (50 questions), Biology (100 questions — Botany 50 + Zoology 50). Students attempt 180 of 200 questions. Marking: +4 for correct, -1 for incorrect. Total: 720 marks (180 × 4).

Sourced from the official exam board notification. Verify against your own copy — patterns occasionally change year-over-year.

Board: NTADuration: 3h 20minTotal Marks: 720Questions: 200Grade: 11-12

Subjects: Biology (141 topics) · Chemistry (295 topics) · Physics (146 topics)

Diversity in Living World

Structural Organisation in Animals and Plants

Cell Structure and Function

Plant Physiology

  • Photosynthesis: Autotrophic nutrition, site, pigments, photochemical and biosynthetic phases

    HIGH WEIGHTAGE
    Weightage: 5.0% · ~4 questionsmedium6h study

    Explains photosynthesis as a mode of autotrophic nutrition, covering its site, pigments, and the photochemical and biosynthetic phases.

    photosynthesisautotrophic nutritionpigmentsphotochemical phasebiosynthetic phase
  • Photosynthesis: Cyclic and non-cyclic photophosphorylation, Chemiosmotic hypothesis, Photorespiration, C3 and C4 pathways

    HIGH WEIGHTAGE
    Weightage: 5.0% · ~4 questionshard6h study

    Details cyclic and non-cyclic photophosphorylation, the chemiosmotic hypothesis, photorespiration, and the C3 and C4 pathways of photosynthesis.

    photosynthesisphotophosphorylationchemiosmosisphotorespirationc3 pathway
  • Factors affecting photosynthesis

    Weightage: 2.0% · ~2 questionseasy2h study

    Discusses the various factors that influence the rate of photosynthesis.

    photosynthesisfactors affecting photosynthesislightco2temperature
  • Respiration: Exchange gases, Cellular respiration (glycolysis, fermentation, TCA cycle, ETS)

    HIGH WEIGHTAGE
    Weightage: 5.0% · ~4 questionsmedium6h study

    Covers gas exchange and the processes of cellular respiration, including glycolysis, fermentation, the TCA cycle, and the electron transport system.

    respirationgas exchangecellular respirationglycolysisfermentation
  • Respiration: Energy relations, Amphibolic pathways, Respiratory quotient

    Weightage: 3.0% · ~2 questionsmedium3h study

    Explains the energy yield from respiration, the concept of amphibolic pathways, and the calculation of the respiratory quotient.

    respirationatpamphibolic pathwaysrespiratory quotient
  • Plant growth and development: Seed germination, Phases of growth, Conditions for growth

    Weightage: 3.0% · ~2 questionseasy3h study

    Details seed germination, the different phases of plant growth, and the conditions necessary for growth.

    plant growthseed germinationgrowth phasesgrowth conditions
  • Plant growth and development: Differentiation, dedifferentiation, redifferentiation, developmental process

    Weightage: 3.0% · ~2 questionsmedium3h study

    Explains the processes of differentiation, dedifferentiation, redifferentiation, and the sequence of developmental processes in plant cells.

    plant developmentdifferentiationdedifferentiationredifferentiation
  • Plant growth regulators: Auxin, Gibberellin, Cytokinin, Ethylene, ABA

    Weightage: 4.0% · ~3 questionsmedium4h study

    Covers the major plant growth regulators: auxin, gibberellin, cytokinin, ethylene, and abscisic acid (ABA), and their roles.

    plant hormonesgrowth regulatorsauxingibberellincytokinin
  • Transport in plants: Water and mineral movement

    Weightage: 2.0% · ~4 questionsmedium4h study

    Covers the movement of water, gases, and nutrients in plants, including cell-to-cell transport, water relations, and long-distance transport.

    transport in plantswater potentialosmosistranspirationmineral absorption
  • Transport in plants: Phloem transport

    Weightage: 1.0% · ~2 questionsmedium2h study

    Explains the transport of food through the phloem, including the mass flow hypothesis.

    phloem transportmass flow hypothesistranslocation
  • Mineral nutrition

    Weightage: 2.0% · ~4 questionsmedium4h study

    Discusses essential minerals, their roles, deficiency symptoms, toxicity, hydroponics, and nitrogen metabolism.

    mineral nutritionessential elementsmacro and micronutrientsdeficiency symptomshydroponics
  • Photosynthesis

    Weightage: 2.5% · ~5 questionshard5h study

    Covers photosynthesis as autotrophic nutrition, its location, pigments, photochemical and biosynthetic phases, C3/C4 pathways, and factors affecting it.

    photosynthesisphotochemical phasebiosynthetic phasec3 pathwayc4 pathway
  • Respiration

    Weightage: 2.0% · ~4 questionsmedium4h study

    Explains exchange of gases, cellular respiration (glycolysis, TCA cycle, ETS), fermentation, and respiratory quotient.

    respirationcellular respirationglycolysistca cycleelectron transport system
  • Plant growth and development

    Weightage: 2.5% · ~5 questionsmedium5h study

    Covers seed germination, plant growth phases, growth regulators (auxin, gibberellin, cytokinin, ethylene, ABA), dormancy, vernalization, and photoperiodism.

    plant growthplant developmentgerminationgrowth regulatorsphotoperiodism

Human Physiology

  • Breathing and Respiration: Respiratory organs, mechanism of breathing, regulation

    Weightage: 4.0% · ~3 questionsmedium4h study

    Details the human respiratory system, the mechanism of breathing, and its regulation.

    respirationrespiratory systembreathing mechanismregulation of respiration
  • Breathing and Respiration: Exchange of gases, transport of gases, respiratory volumes

    Weightage: 3.0% · ~2 questionsmedium3h study

    Explains the exchange and transport of respiratory gases and the various respiratory volumes in humans.

    gas exchangegas transportrespiratory volumeslungs
  • Breathing and Respiration: Disorders related to respiration

    Weightage: 2.0% · ~1 questioneasy2h study

    Briefly covers common disorders related to the respiratory system like asthma, emphysema, and occupational respiratory disorders.

    respiratory disordersasthmaemphysemaoccupational respiratory disorders
  • Body fluids and circulation: Composition of blood, blood groups, coagulation

    Weightage: 3.0% · ~2 questionseasy3h study

    Details the composition of blood, blood groups, and the process of blood coagulation.

    blood compositionblood groupscoagulationcirculatory system
  • Body fluids and circulation: Lymph, human circulatory system structure

    Weightage: 3.0% · ~2 questionsmedium3h study

    Explains the composition and function of lymph, and the structure of the human heart and blood vessels.

    lymphcirculatory systemheart structureblood vessels
  • Body fluids and circulation: Cardiac cycle, cardiac output, ECG, Double circulation

    Weightage: 4.0% · ~3 questionsmedium4h study

    Covers the cardiac cycle, cardiac output, electrocardiogram (ECG), and the concept of double circulation.

    cardiac cyclecardiac outputecgdouble circulation
  • Body fluids and circulation: Regulation of cardiac activity, disorders of circulatory system

    Weightage: 4.0% · ~3 questionsmedium4h study

    Discusses the regulation of cardiac activity and common disorders of the circulatory system.

    cardiac regulationcirculatory disordershypertensioncadangina
  • Excretory products and their elimination: Modes of excretion, human excretory system

    Weightage: 4.0% · ~3 questionsmedium4h study

    Explains the different modes of excretion and the structure and function of the human excretory system.

    excretionammonotelismureotelismuricotelismexcretory system
  • Excretory products and their elimination: Urine formation, Osmoregulation, Regulation of kidney function

    HIGH WEIGHTAGE
    Weightage: 5.0% · ~4 questionsmedium5h study

    Details the process of urine formation, osmoregulation, and the hormonal regulation of kidney function.

    urine formationosmoregulationkidney regulationrenin-angiotensinadh
  • Excretory products and their elimination: Role of other organs, disorders, dialysis

    Weightage: 3.0% · ~2 questionsmedium3h study

    Covers the role of other organs in excretion, common disorders of the excretory system, and the process of dialysis.

    excretionkidney disordersuraemiarenal failuredialysis
  • Locomotion and Movement: Types of movement, skeletal muscle structure and contraction

    Weightage: 4.0% · ~3 questionsmedium4h study

    Explains the different types of movement and the structure of skeletal muscles, including contractile proteins and the mechanism of muscle contraction.

    locomotionmovementmuscle contractionskeletal musclecontractile proteins
  • Locomotion and Movement: Skeletal system and its functions, Joints

    Weightage: 3.0% · ~2 questionseasy3h study

    Details the structure and functions of the skeletal system and the different types of joints.

    skeletal systembonesjointsarticulation
  • Locomotion and Movement: Disorders of muscular and skeletal system

    Weightage: 2.0% · ~1 questioneasy2h study

    Briefly covers common disorders of the muscular and skeletal systems.

    musculoskeletal disordersmyasthenia gravistetanymuscular dystrophyarthritis
  • Neural control and coordination: Neuron, nervous system structure

    Weightage: 4.0% · ~3 questionsmedium4h study

    Explains the structure of a neuron and the organization of the human nervous system (CNS, PNS, Visceral NS).

    nervous systemneuroncentral nervous systemperipheral nervous systemvisceral nervous system
  • Neural control and coordination: Generation and conduction of nerve impulse

    Weightage: 3.0% · ~2 questionsmedium3h study

    Details the generation and conduction of nerve impulses across a synapse.

    nerve impulseaction potentialnerve conductionsynapse
  • Chemical coordination and regulation: Endocrine glands and hormones

    Weightage: 4.0% · ~3 questionsmedium4h study

    Introduces the human endocrine system, including major endocrine glands and the hormones they produce.

    endocrine systemhormonesendocrine glandshypothalamuspituitary
  • Chemical coordination and regulation: Mechanism of hormone action, role as messengers

    Weightage: 3.0% · ~2 questionsmedium3h study

    Explains the elementary mechanism of hormone action and their roles as chemical messengers and regulators.

    hormone actionendocrine signalingmessengershormone regulation
  • Chemical coordination and regulation: Hypo- and hyperactivity disorders

    Weightage: 4.0% · ~3 questionsmedium4h study

    Covers common disorders related to hypo- and hyperactivity of endocrine glands.

    hormonal disordersdwarfismacromegalycretinismgoiter
  • Digestion and absorption

    Weightage: 2.0% · ~4 questionsmedium4h study

    Details the digestive system, role of enzymes and hormones, digestion and absorption of nutrients, and nutritional disorders.

    digestionabsorptionalimentary canaldigestive glandsdigestive enzymes
  • Breathing and Respiration

    Weightage: 2.0% · ~4 questionsmedium4h study

    Explains the human respiratory system, mechanism of breathing, gas exchange, transport, regulation, and related disorders.

    breathingrespirationrespiratory systemmechanism of breathinggas exchange
  • Body fluids and circulation

    Weightage: 2.5% · ~5 questionsmedium5h study

    Covers the composition of blood and lymph, human circulatory system, cardiac cycle, double circulation, and circulatory disorders.

    body fluidsbloodlymphcirculatory systemheart
  • Excretory products and their elimination

    Weightage: 2.0% · ~4 questionsmedium4h study

    Explains modes of excretion, human excretory system, urine formation, osmoregulation, kidney function regulation, and excretory disorders.

    excretionexcretory systemurine formationosmoregulationkidney function regulation
  • Locomotion and Movement

    Weightage: 2.0% · ~4 questionsmedium4h study

    Covers types of movement, skeletal muscle contraction, skeletal system, joints, and disorders of the muscular and skeletal systems.

    locomotionmovementskeletal musclemuscle contractionskeletal system
  • Neural control and coordination

    Weightage: 2.5% · ~5 questionsmedium5h study

    Explains the nervous system, generation and conduction of nerve impulses, reflex action, sensory perception, and the structure and function of sense organs.

    neural controlnervous systemneuronnerve impulsereflex action
  • Chemical coordination and regulation

    Weightage: 2.5% · ~5 questionsmedium5h study

    Covers endocrine glands, hormones, mechanism of hormone action, and related disorders.

    chemical coordinationendocrine systemhormonesendocrine glandshormone action

Reproduction

  • Sexual reproduction in flowering plants: Flower structure, gametophyte development

    Weightage: 4.0% · ~3 questionsmedium4h study

    Details the structure of a flower and the development of male and female gametophytes in flowering plants.

    sexual reproductionflowering plantsflower structuregametophytemicrosporogenesis
  • Sexual reproduction in flowering plants: Pollination, outbreeding devices, pollen-pistil interaction

    Weightage: 4.0% · ~3 questionsmedium4h study

    Covers types of pollination, devices for outbreeding, and the process of pollen-pistil interaction.

    pollinationoutbreedingpollen-pistil interactionfertilization
  • Sexual reproduction in flowering plants: Double fertilization, post-fertilization events (endosperm, embryo, seed, fruit)

    HIGH WEIGHTAGE
    Weightage: 5.0% · ~4 questionsmedium5h study

    Explains double fertilization and post-fertilization events, including the development of endosperm, embryo, seed, and fruit.

    double fertilizationendospermembryo developmentseed developmentfruit development
  • Sexual reproduction in flowering plants: Special modes (apomixis, parthenocarpy, polyembryony), significance of seed and fruit

    Weightage: 3.0% · ~2 questionsmedium3h study

    Discusses special modes of reproduction like apomixis, parthenocarpy, polyembryony, and the significance of seed and fruit formation.

    apomixisparthenocarpypolyembryonyseed significancefruit significance
  • Human Reproduction: Reproductive systems, gametogenesis

    HIGH WEIGHTAGE
    Weightage: 5.0% · ~4 questionsmedium5h study

    Details the male and female reproductive systems and the processes of spermatogenesis and oogenesis.

    human reproductionmale reproductive systemfemale reproductive systemgametogenesisspermatogenesis
  • Human Reproduction: Menstrual cycle, fertilization, embryo development, implantation

    HIGH WEIGHTAGE
    Weightage: 5.0% · ~4 questionsmedium5h study

    Covers the menstrual cycle, fertilization, early embryo development up to blastocyst formation, and implantation.

    menstrual cyclefertilizationembryo developmentimplantationblastocyst
  • Human Reproduction: Pregnancy, placenta, parturition, lactation

    Weightage: 4.0% · ~3 questionsmedium4h study

    Provides an elementary idea of pregnancy, placenta formation, parturition, and lactation.

    pregnancyplacentaparturitionlactation
  • Reproductive health: Need, STDs, birth control methods

    Weightage: 3.0% · ~2 questionseasy3h study

    Discusses the need for reproductive health, prevention of sexually transmitted diseases (STDs), and various birth control methods.

    reproductive healthstdsbirth controlcontraception
  • Reproductive health: MTP, Amniocentesis, assisted reproductive technologies (IVF, ZIFT, GIFT)

    Weightage: 3.0% · ~2 questionsmedium3h study

    Covers Medical Termination of Pregnancy (MTP), Amniocentesis, and assisted reproductive technologies like IVF, ZIFT, and GIFT.

    mtpamniocentesisivfziftgift
  • Reproduction in organisms

    Weightage: 1.5% · ~3 questionseasy3h study

    Discusses reproduction as a characteristic of organisms, covering asexual and sexual modes.

    reproductionasexual reproductionsexual reproductionmodes of reproduction
  • Sexual reproduction in flowering plants

    Weightage: 2.5% · ~5 questionsmedium5h study

    Details sexual reproduction in flowering plants, including flower structure, gametogenesis, pollination, fertilization, seed and fruit development, and special modes.

    sexual reproductionflowering plantspollinationfertilizationseed formation
  • Human Reproduction

    Weightage: 2.5% · ~5 questionsmedium5h study

    Covers the male and female reproductive systems, gametogenesis, menstrual cycle, fertilization, embryo development, pregnancy, parturition, and lactation.

    human reproductionreproductive systemgametogenesismenstrual cyclefertilization
  • Reproductive health

    Weightage: 1.5% · ~3 questionsmedium3h study

    Discusses the need for reproductive health, prevention of STDs, birth control methods, MTP, infertility, and assisted reproductive technologies.

    reproductive healthstdsbirth controlcontraceptionmtp

Genetics and Evolution

  • Heredity and variation: Mendelian inheritance, deviations from Mendelism

    HIGH WEIGHTAGE
    Weightage: 5.0% · ~4 questionsmedium5h study

    Explains Mendelian inheritance principles and deviations like incomplete dominance, co-dominance, multiple alleles, and pleiotropy.

    mendelian inheritanceheredityvariationincomplete dominanceco-dominance
  • Heredity and variation: Inheritance of blood groups, polygenic inheritance, chromosome theory

    Weightage: 4.0% · ~3 questionsmedium4h study

    Covers the inheritance of blood groups, elementary ideas of polygenic inheritance, and the chromosome theory of inheritance.

    blood groupspolygenic inheritancechromosome theory of inheritancegenes
  • Heredity and variation: Sex determination, linkage, crossing over, sex-linked inheritance

    HIGH WEIGHTAGE
    Weightage: 5.0% · ~4 questionsmedium5h study

    Explains sex determination in various organisms, linkage, crossing over, and sex-linked inheritance with examples like haemophilia and colour blindness.

    sex determinationlinkagecrossing oversex-linked inheritancehaemophilia
  • Heredity and variation: Mendelian disorders, chromosomal disorders

    Weightage: 4.0% · ~3 questionsmedium4h study

    Covers Mendelian disorders like Thalassemia and chromosomal disorders such as Down’s, Turner’s, and Klinefelter’s syndromes.

    mendelian disordersthalassemiachromosomal disordersdown syndrometurner syndrome
  • Molecular basis of Inheritance: Genetic material, DNA and RNA structure, DNA packaging

    HIGH WEIGHTAGE
    Weightage: 5.0% · ~4 questionsmedium5h study

    Discusses DNA as genetic material, the structure of DNA and RNA, and DNA packaging in cells.

    genetic materialdna structurerna structuredna packagingnucleic acids
  • Molecular basis of Inheritance: DNA replication, Central dogma, Transcription, Genetic code, Translation

    HIGH WEIGHTAGE
    Weightage: 6.0% · ~5 questionshard7h study

    Explains DNA replication, the central dogma of molecular biology, transcription, genetic code, and translation.

    dna replicationcentral dogmatranscriptiongenetic codetranslation
  • Molecular basis of Inheritance: Gene expression and regulation (Lac Operon), Genome, Human Genome Project

    Weightage: 4.0% · ~3 questionsmedium4h study

    Covers gene expression and regulation, focusing on the Lac Operon, and introduces the concepts of genome and the Human Genome Project.

    gene expressionlac operongenomehuman genome project
  • Molecular basis of Inheritance: DNA fingerprinting, protein biosynthesis

    Weightage: 3.0% · ~2 questionsmedium3h study

    Explains the technique of DNA fingerprinting and the overall process of protein biosynthesis.

    dna fingerprintingprotein synthesis
  • Evolution: Origin of life, evidences for evolution

    Weightage: 4.0% · ~3 questionsmedium4h study

    Discusses the origin of life and provides evidence for biological evolution from various fields like paleontology, comparative anatomy, embryology, and molecular biology.

    origin of lifeevolutionevidences of evolutionpaleontologycomparative anatomy
  • Evolution: Darwin's contribution, Modern Synthetic theory, mechanism of evolution

    HIGH WEIGHTAGE
    Weightage: 5.0% · ~4 questionsmedium5h study

    Covers Darwin's theory, the Modern Synthetic theory of evolution, and the mechanisms of evolution including variation and natural selection.

    darwinismmodern synthetic theorymechanism of evolutionnatural selectionmutation
  • Evolution: Gene flow, genetic drift, Hardy-Weinberg's principle, adaptive radiation, human evolution

    HIGH WEIGHTAGE
    Weightage: 5.0% · ~4 questionsmedium5h study

    Explains gene flow, genetic drift, Hardy-Weinberg's principle, adaptive radiation, and human evolution.

    gene flowgenetic drifthardy-weinberg principleadaptive radiationhuman evolution
  • Heredity and variation: Mendelian Inheritance

    Weightage: 2.5% · ~5 questionsmedium5h study

    Covers Mendelian inheritance, including concepts like genes, alleles, genotype, phenotype, and deviations from Mendelism.

    heredityvariationmendelian inheritancegenesalleles
  • Heredity and variation: Chromosomal basis

    Weightage: 2.0% · ~4 questionsmedium4h study

    Explains the chromosomal theory of inheritance, sex determination, linkage, crossing over, sex-linked inheritance, and chromosomal disorders.

    chromosome theory of inheritancesex determinationlinkagecrossing oversex-linked inheritance
  • Molecular Basis of Inheritance: DNA structure and replication

    Weightage: 2.0% · ~4 questionsmedium4h study

    Covers the search for genetic material, DNA structure, DNA packaging, DNA replication, and the central dogma of molecular biology.

    dna structuredna replicationgenetic materialcentral dogma
  • Molecular Basis of Inheritance: Gene expression and regulation

    Weightage: 1.5% · ~3 questionsmedium3h study

    Explains transcription, genetic code, translation, gene expression, and its regulation (e.g., Lac operon).

    transcriptiontranslationgenetic codegene expressionlac operon
  • Molecular Basis of Inheritance: Genome project and DNA fingerprinting

    Weightage: 1.0% · ~2 questionsmedium2h study

    Covers the Human Genome Project and the technique of DNA fingerprinting.

    human genome projectdna fingerprintinggenomics
  • Evolution: Origin and evidences

    Weightage: 1.5% · ~3 questionsmedium3h study

    Discusses the origin of life and the various evidences for biological evolution.

    origin of lifebiological evolutionevidences of evolutionpaleontologycomparative anatomy
  • Evolution: Theories and mechanisms

    Weightage: 2.0% · ~4 questionsmedium4h study

    Covers Darwin's contribution, the Modern Synthetic Theory, mechanisms of evolution like variation, natural selection, gene flow, genetic drift, and adaptive radiation.

    darwinismmodern synthetic theorynatural selectionvariationgene flow
  • Human Evolution

    Weightage: 0.5% · ~1 questioneasy1h study

    Provides an overview of human evolution and the evolutionary history of primates.

    human evolutionhominidsprimate evolution

Biology and Human Welfare

Biotechnology and Its Applications

Ecology and Environment

  • Organisms and environment: Population interactions

    Weightage: 4.0% · ~3 questionsmedium4h study

    Explains various types of interactions between organisms within a population and between different populations.

    ecologypopulation interactionsmutualismcompetitionpredation
  • Organisms and environment: Population attributes

    Weightage: 3.0% · ~2 questionsmedium3h study

    Covers population attributes such as growth, birth rate, death rate, and age distribution.

    population attributespopulation growthbirth ratedeath rateage distribution
  • Ecosystem: Patterns, components, productivity and decomposition

    HIGH WEIGHTAGE
    Weightage: 5.0% · ~4 questionsmedium5h study

    Details the patterns, components, productivity, and decomposition processes within an ecosystem.

    ecosystemecosystem componentsproductivitydecomposition
  • Ecosystem: Energy flow, Pyramids

    Weightage: 4.0% · ~3 questionsmedium4h study

    Explains the flow of energy through an ecosystem and the concept of ecological pyramids.

    energy flowecosystem pyramidspyramid of numberpyramid of biomasspyramid of energy
  • Biodiversity and its conservation: Concept, patterns, importance

    Weightage: 4.0% · ~3 questionsmedium4h study

    Covers the concept, patterns, and importance of biodiversity.

    biodiversitypatterns of biodiversityimportance of biodiversity
  • Biodiversity and its conservation: Loss of biodiversity, conservation strategies

    HIGH WEIGHTAGE
    Weightage: 5.0% · ~4 questionsmedium5h study

    Discusses the causes of biodiversity loss and various strategies for its conservation.

    loss of biodiversitybiodiversity conservationhotspotsendangered speciesextinction
  • Biodiversity and its conservation: Conservation methods (Biosphere reserves, National parks, Sanctuaries, Sacred Groves)

    Weightage: 4.0% · ~3 questionsmedium4h study

    Details various methods of biodiversity conservation, including biosphere reserves, national parks, sanctuaries, and sacred groves.

    conservation methodsbiosphere reservesnational parkswildlife sanctuariessacred groves

Ecology and environment

Exam Insight

Salient features and classification of plants: Algae, Bryophytes, Pteridophytes, Gymnosperms (7.0%), Salient features and classification of animals: Non-chordates and Chordates (7.0%), Cell organelles: structure and function (ER, Golgi, lysosomes, vacuoles, mitochondria, ribosomes, plastids, micro bodies) (6.0%) together make up 20.0% of the Biology paper. Master these topics for maximum ROI.

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