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NEET Biology Syllabus 2024, Botany and Zoology Reduced Syllabus with Weightage

NEET Biology Syllabus 2024: The National Medical Commission (NMC) has recently revised and released the NEET Biology Syllabus 2024 which is available to be downloaded from the official website at www.nmc.org.in. As compared to the previous year NEET Biology syllabus, this year some topics are reduced, added & modified as per the New NCERT books. The major highlight is that the topics that are not covered in the NCERT Biology Syllabus are also included in the new revised NEET 2024 Biology Syllabus. Therefore medical aspirants should pay additional attention to these newly covered topics. The list of newly added topics and deleted botany & zoology syllabus has been provided in this article below for the reference of candidates.

NEET Biology Syllabus 2024

NEET Biology syllabus encompasses a comprehensive study of the biological sciences, offering a detailed understanding of fundamental processes, structures, and biological systems. Designed to evaluate a student’s proficiency in biology for admission to medical and dental colleges, this Biology syllabus covers an array of topics from Class 11th & 12th NCERT books ranging from the diversity of living organisms to intricate cellular functions and ecological systems. The NEET Biology syllabus not only prepares candidates for medical professionals.

NEET Biology Syllabus 2024 Chapter Name

Here in the below section, we have given class 11, and 12 chapter names in NEET Biology syllabus 2024.

Unit No. Class 11 Biology Chapter Name  Unit No. Class 12 Biology Chapter Name
I Diversity of Living World I Reproduction
II Structural Organisation in Animals and Plants II Genetics and Evolution
III Cell Structure and Function III Biology and Human Welfare
IV Plant Physiology IV Biotechnology and Its Applications
V Human Physiology V Ecology and Environment


NEET Biology Syllabus 2024 Chapter Wise

The detailed chapter-wise topics of NEET Biology Syllabus 2024 which have been revised recently are tabularized below. Aspirants are advised to go through the syllabus completely before starting their preparation. Since many topics have been deleted, new topics that are not included in the current version of NCERT textbooks have been included, candidates should be aware of the same and be clear of the latest revision of the NEET 2024 Biology Syllabus.

Biology Syllabus for NEET 2024 Exam
NEET Syllabus 2024 Class 11th Biology
Diversity in the Living World The Living World

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

Biological Classification

Five kingdom classifications; salient features and classification of Monera; Protista and Fungi into major groups; Lichens; Viruses and Viroids.

Plant Kingdom

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);

Animal Kingdom

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 organization – Plants and Animals Morphology & Anatomy of Flowering 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).

Structural Organisation in Animals

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-The Unit of Life

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 (ultra structure 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

Cell Cycle and Cell Division

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

Plant Physiology Photosynthesis in Higher Plants

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 in Plants

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 gowth 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 Exchange of Gases

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 humans central nervous system, peripheral nervous system and visceral nervous system; Generation and conduction of nerve impulse;

Chemical Coordination and Integration:

Endocrine glands and hormones; Human endocrine system-Hypothalamus, pituitary, pineal, Thyroid, parathyroid, Adrenal, Pancreas, Gonads; Mechanism of hormone action (Elementary ldea); Role of hormones as messengers and regulators, Hypo-and hyperactivity and rerated disorders (common disorders e.g. Dwarfism, Acromegaly, Cretinism, goiter, exopthalmic goiter, diabetes, Addison’s disease).

NCERT Syllabus 2024 Class 12th Biology

Reproduction 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.

Reproduction in Organisms

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; lnfertility and assisted reproductive technologies – IVF, ZIFT, GIFT (Elementary idea for general awareness).

Genetics and Evolution Heredity and Variation

Mendelian lnheritance; 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 and human genome project; DNA finger printing, protein biosynthesis.


Origin of life; Biological evolution and evidences for biological evolution from Paleontology, comparative anatomy, embryology and molecular evidence); Darwin’s contribution, Modem 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 Application Biotechnology – Principles and Processes

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

Biotechnology and its Application

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

Organisms and environment: Population interactions-mutualism, competition, predation, parasitism; Population attributes-growth, birth rate and death rate, age distribution,


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.

NEET Biology Syllabus 2024 Download PDF

NTA has officially released the NEET Reduced Syllabus for Biology. The PDF uploaded by the NMC consists of a detailed syllabus for the Biology subject. Also, as the NTA has declared the NEET Exam Date 2024, Students who are preparing for the exam or planning to appear in the upcoming NEET exam must check the new Updated NEET Biology Syllabus 2024. The Download PDF Link for NEET Biology Syllabus is given below.

NEET Biology Syllabus 2024 with Weightage

NEET 2024 Biology syllabus covers a wide range of topics from both Botany and Zoology from classes 11th & 12th. It’s important to note that the weightage of specific topics may vary from year to year, we here mentioned the weightage of NEET Biology Syllabus 2024.

NEET Botany Syllabus 2024

The weightage in each chapter or the chapter-wise weightage as per the latest exam pattern is tabularized below. Candidates should dedicate their time and put more of their efforts into topics that have the highest weightage. In Botany, chapters like Ecology, Genetics, and Evolution have more weightage and more chances of questions to be asked from the topics of these chapters.

Unit Name  Weightage in Percentile
Plant Physiology 9-10%
Genetics and Evolution 10-11%
Ecology 13-14%
Cell Biology 8-9%
Biotechnology 8-9%

NEET Zoology Syllabus 2024

As far as zoology is concerned, the Human Physiology chapter is of the utmost importance as more chances of questions to be asked from the exam point of view. The weightage given to this chapter is 20-21%. The unit-wise chapters and their respective weightage are mentioned below.

Unit Name  Weightage in Percentile
Human Physiology 20-21%
Diversity in the Living World 13-14%
Structural Organisation in Animals and Plants 5-6%
Reproduction 9-10%
Biology and Human Welfare 4-5%
Biomolecules and Cell Structure 5-6%

Newly Added Topics in NEET Biology Syllabus 2024

The following are the topics that have been newly added as a part of the curriculum in Biology Subject. This can also be checked in the revised NEET Syllabus 2024 PDF for Biology Subject that has been shared below. The new topics include:

  1. Family (Malvaceae, Cruciferae, Leguminoceae, Compositae, Gramineae)
  2. Insect (Frog)

As these topics are not included in NCERT Biology books, aspirants can check a variety of external sources and old NCERT textbooks.

Deleted Topics in NEET Biology Syllabus 2024

The list of deleted topics as per the newly revised NEET Biology Syllabus 2024 is provided below:

  1. Taxonomic Aid
  2. Angiosperm
  3. Secondary Growth (Class 11)
  4. Transport in Plants except Xylem and Phloem (Class 11)
  5. Mineral Nutrition (Class 11)
  6. Vernalization and Seed Dormancy  (Class 11)
  7. Sense Organs  (Class 11)
  8. Digestion and Absorption (Class 11)
  9. Reproduction in Organisms (Class 12)
  10. Strategies for Enhancement in Food Production (Class 12)
  11. Succession  (Class 12)
  12. Environmental Issues (Class 12)

NEET Biology Syllabus: Important Topics

The students are advised to carefully go through the complete NEET syllabus. Focusing on important topics during exam preparation is crucial for effective time management and maximizing the student’s understanding of key concepts. It allows them to prioritize their study efforts, ensuring a more thorough grasp of fundamental material that is likely to be covered in the examination. This targeted approach can boost confidence and overall performance.

NEET Biology Important Topics from Class 11th

Here we have discussed a few points that highlight the Important Topics of Class 11th Biology for the NEET 2024 Examination.

  • Plant Kingdom
  1. General Characteristics of Pteridophytes and Gymnosperms
  2. Types of Algae and Their Pigments
  • Biological Classification
  1. Monera, Protista, and Fungi: General Features
  • Structural Organization in Plants and Animals
  1. Root, Stem, and Leaf Anatomy
  2. Animal’s Tissues and their Functions, specifically epithelial tissues.
  • Cell: Structure and Functions
  1. Mycoplasma, Nucleus, Chromosomes, Ribososmes, Chloroplast, and Mitochondria
  2. Meiosis – Prophase I
  • Plant Physiology
  1. C3, C4 Cycle
  2. Kranz Anatomy
  3. Glycolysis and Krebs Cycle
  4. ETS Complexes
  5. Photoperiodism
  6. Transpiration Pull
  7. Bulk Movement in Phloem
  8. Mineral Deficiency and Nitrogen Cycle
  • Animal/Human Physiology
  1. All the topics with diagram are very important

NEET Biology Important Topics from Class 12th

Here we have discussed a few points that highlight the Important Topics of Class 12th Biology for the NEET 2024 Examination.

  • Reproduction
  1. Gametogenesis in Plants
  2. Gametogenesis in Humans
  3. Reproductive structures in Plants and Animals
  4. Polyembryony, Parthenocarpy, Apomixis
  5. Menstrual Cycle
  • Biotechnology
  1. Process and Applications
  2. BT Cooton, RNAi, Human Insulin, Gene therapy, Molecular dianostics
  • Genetics and Evolution
  1. Dihybrid Cross, Linkage
  2. Codominance
  3. Pedigree Analysis
  4. Genetic Disorders
  5. Darwinism and Natural selection
  6. Human Evolution
  • Biology in Human Welfare
  1. Human Immunity
  2. AIDS, Cancer
  3. Drugs
  • Ecology and Environment
  1. Environmental issues
  2. Biogeochemical Cycles
  3. Population Interactions
  4. Adaptations
  5. Succession

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Q1. Is the NEET Biology Syllabus 2024 revised?

Ans. Yes, the NEET Biology Syllabus 2024 has been now revised as some part of syllabus is deleted and new topics have been added.

Q2. Is the new topics of NEET Biology Syllabus 2024 covered in NCERT Biology Syllabus?

Ans. No, the new topics of NEET Biology Syllabus 2024 are not covered in NCERT Biology Syllabus.

Q3. What are the new topics included in NEET 2024 Biology Syllabus?

Ans. The two new topics included in NEET 2024 Biology Syllabus are Family (Malvaceae, Cruciferae, Leguminoceae, Compositae, Gramineae), Insect (Frog).

Q4. How to check the revised NEET Biology Syllabus 2024?

Ans. The revised NEET Biology Syllabus 2024 can be downloaded from the official website www.nmc.org.in or through direct PDF link shared here.

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