NEET Biology Syllabus for 2024

Aspirants aiming to crack the medical entrance test with ease should know the NEET 2024 Biology syllabus thoroughly. The Biology syllabus of NEET consists of 10 units. The NEET Biology Syllabus is prescribed by the NCERT. Here it is given in 2 sections and a total of 10 units which are divided according to the botany and zoology chapters. Each section contains 45 questions which result in 360 marks in total. As per the previous year's toppers and subject matter experts, the Biology syllabus of NEET 2024 is easy, if compared to the other two compulsory subjects i,e. Biology & Chemistry. Candidates with a better concept clarity of the NEET Biology syllabus can score well in the entrance exam. NEET Biology syllabus 2024 carries an almost equal weightage of questions from class 11th and 12th. So, aspirants are required to go through the syllabus in details.

NEET Syllabus 2024 for Biology

Class XI Class XII

The Living World

Sexual Reproduction in Flowering Plants

Biological Classification

Human Reproduction

Plant Kingdom

Reproductive Health

Animal Kingdom

Principles of Inheritance & Variation

Morphology of Flowering Plants

Molecular Basis of Inheritance

Anatomy of Flowering Plants


Structural Organisation in Animals

Human Health and Disease

Cell: The Unit of Life

Microbes in Human Welfare


Biotechnology: Principles and Processes

Cell Cycle and Cell Division

Biotechnology and its Applications

Photosynthesis in Higher Plants

Organisms and Populations

Respiration in Plants


Plant Growth and Development

Biodiversity and Conservation

Breathing and Exchange of Gases

Body Fluids and Circulation

Excretory Products and their Elimination

Locomotion and Movement

Neural Control and Coordination

Chemical Coordination and Integration




The Living World

What is living? Biodiversity; Need for classification; Taxonomy & Systematics; Concept of species and taxonomical hierarchy; Binomial nomenclature.

Five kingdom classification; salient features and classification of Monera; Protista and Fungi into major groups; Lichens; 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-nonchordate up to phyla level and chordate up to classes level (three to five salient features and at least two examples).


Structural Organisation in Animals and Plants

Morphology and modifications; Tissues; Anatomy and functions of different parts of flowering plants: Root, stem, leaf, inflorescence - cymose and recemose, flower, fruit and seed (To 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 Structure and Function

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 organelles - structure and function; Endomembrane system-endoplasmic reticulum, Golgi bodies, lysosomes, vacuoles; mitochondria, ribosomes, plastids, micro bodies; Cytoskeleton, cilia, flagella, 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 anzymes.

B Cell division: Cell cycle, mitosis, meiosis and their significance.


Plant Physiology

Photosynthesis: Photosynthesis as a means of Autotrophic nutrition; Site of photosynthesis take 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, dedifferentiation and redifferentiation; Sequence of developmental process in a plant cell; Growth regulators-auxin, gibberellin, cytokinin, ethylene, ABA.


Human Physiology

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-Asthma, 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; Dialysis and artificial kidney.

Locomotion and Movement: Types of movement - ciliary, fiagellar, muscular; Skeletal muscle contractile proteins and muscle contraction; Skeletal system and its functions (To be dealt with 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 humanscentral nervous system, peripheral nervous system and visceral nervous system; Generation and conduction of nerve impulse.

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, goitre, exophthalmic goitre, diabetes, Addison's disease).

Important Note:- Diseases and disorders mentioned above to be details 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 upto 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; Infertility and assisted reproductive technologies - IVF, ZIFT, GIFT (Elementary idea for general awareness).


Genetics and Evolution

Heredity and variation:- Mendelian Inheritance; Deviations from Mendelism- Incomplete 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-In 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, Turner'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, Human genome project, DNA finger printing and Protein Biosynthesis.

Evolution:- Origin of life; Biological evolution and evidences for biological evolution from Palaeontology, 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.


Biology and Human Welfare

Human 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.


Biotechnology and Its Applications

Principles and process of Biotechnology: Genetic engineering (Recombinant DNA technology).

Application of Biotechnology in health and agriculture: Human insulin and vaccine production, gene therapy; Genetically modified organisms-Bt crops; Transgenic Animals; Biosafety issues-Biopiracy and patents.


Ecology and environment

Organisms and Populations:- Population interactions-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.

If one analyzes the NEET previous years Question papers, one can deduce the most important topics in NEET Biology syllabus which are Kinematics, Heat, Electrostatics, Electronic Devices, Thermodynamics, The Magnetic effect of Current, Laws of Motion, and Oscillations & Waves.

Tips to prepare NEET Biology Syllabus 2024:

1. Syllabus and Exam Pattern Comprehension:-

Analysing topics in NEET 2024 Biology syllabus must be the first step while starting to prepare. Comprehend the exam pattern and hence the marking scheme.

2. Refer Best Books:-

NCERT Textbook for Class 11th & Class 12th Biology. Biology Vol 1 and Vol 2 by Trueman. Objective Biology by Dinesh. Objective Botany by Ansari. Pradeep Guide on Biology. GR Bathla publications for Biology.

3. Practice Previous Year's Question Papers:-

One of the best ways to prepare NEET Biology Syllabus is to practice previous year's NEET question papers. Solving these papers will help you to understand the type of questions asked in the examination. Also, it will enhance your speed, accuracy, time management skills, and familiarizes you with the topics important from the examination point of view.

4. Make Proper Notes:-

The students are advised to prepare study notes of all the necessary formulas, theorems, and concepts. These revision notes will help students to strengthen their knowledge and boost their last-minute preparations.

5. Appear for Online Mock Test Series:-

Online Mock Test Series will help to improve your exam-taking skills. Taking Online Mock Tests will assist you to evaluate your preparation level. Moreover, it will also help you to identify your weak concepts.

Recommended Question Papers for NEET Exam

NEET 2019 Question Paper with Answer Keys

NEET 2018 Question Paper with Answer Keys

NEET 2017 Question Paper with Answer Keys

NEET 2016 Question Paper with Answer Keys

NEET 2015 Question Paper with Answer Keys