Table of Contents
Authorities have released the revised NEET Biology Syllabus 2025 PDF. The new and revised NEET Biology Syllabus consists of all the topics from the Class 11th and 12th Biology Books. The major highlight is that the topics that are not covered in the NCERT Botany and Zoology Syllabus are also included in the new revised NEET Biology Syllabus. The list of newly added topics and deleted botany and zoology syllabus chapter-wise has been provided in this article below with the link for the NEET Biology Syllabus 2025 Download PDF for the students.
NEET Biology Syllabus 2025
NEET Biology syllabus encompasses a comprehensive study of the biological sciences, offering a detailed understanding of fundamental processes, structures, and biological systems. As compared to the previous year’s NEET Biology syllabus, this year some topics are reduced, added & modified as per the New NCERT books.
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 2025 Chapter Wise
The NEET 2025 Biology syllabus has been updated, so students should review it carefully before they begin studying. Some topics that were included before have been removed, and new ones have been added that are not found in the current NCERT books. To perform well in the exam, it’s important for students to know these changes and study according to the latest syllabus.
Staying updated on what’s new can help students focus on the right subjects and prepare well for the NEET 2025 exam. It’s important to understand the updated syllabus to study effectively. The table below lists the topics by chapter, making it easier for students to keep track of these changes and focus on what they need to learn for the exam. This way, they can ensure they are covering all the necessary material and preparing themselves properly for success on test day.
Biology Syllabus for NEET 2025 | |
NEET Syllabus 2025 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. Biomolecules 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: 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 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 2025 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, 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. |
NEET Biology Syllabus 2025 PDF Download
Officials have announced the NEET Reduced Syllabus for Biology. This PDF contains a detailed outline of the Biology topics for the NEET exam. Students preparing for NEET 2025 should check the updated syllabus to stay informed about any changes. We’ve included a direct link below for you to easily access and download the full NEET Biology Syllabus 2025 PDF. Be sure to review it carefully as you prepare for the exam. Staying updated on the syllabus will help you focus your studies and improve your chances of success in the NEET exam.
NEET Biology Syllabus 2025 with Weightage
The NEET 2025 Biology syllabus includes many topics from both Botany (study of plants) and Zoology (study of animals) from classes 11 and 12. Each year, the importance of different topics can change. So, the focus on certain areas might be different in 2025 compared to previous years. To help students prepare, the syllabus lists the importance or weight of each topic for the NEET exam. Understanding this helps students know which topics to focus on more as they get ready for the test.
NEET Botany Syllabus 2025 Unit Wise Weightage
The chapter-wise weightage based on the latest exam pattern is shown in the table below. Students should focus their time and efforts on the topics with the highest weightage. By paying more attention to these important chapters, candidates can improve their chances of scoring well in the exam. Understanding which topics carry more marks can help them prioritize their study plan and make the most of their preparation time. 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.
NEET 2025 Botany Syllabus | |
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 2025 Unit Wise Weightage
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.
NEET 2025 Zoology Syllabus | |
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 2025
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 2025 PDF for Biology Subject that has been shared below. The new topics include:
- Family (Malvaceae, Cruciferae, Leguminoceae, Compositae, Gramineae)
- 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 Biology Syllabus 2025
In the NEET 2025 Biology syllabus, some topics have been removed or deleted over time. Certain specific topics within chapters, such as “sexual reproduction in flowering plants”, “Human Reproduction” and many more. These changes are made to streamline the syllabus and focus on core concepts relevant to medical education, ensuring that students are well-prepared for the NEET 2025 Exam while covering essential biological knowledge. The list of deleted topics as per the newly revised NEET Biology Syllabus 2025 is provided below:
- Taxonomic Aid
- Angiosperm
- Secondary Growth (Class 11)
- Transport in Plants except Xylem and Phloem (Class 11)
- Mineral Nutrition (Class 11)
- Vernalization and Seed Dormancy (Class 11)
- Sense Organs (Class 11)
- Digestion and Absorption (Class 11)
- Reproduction in Organisms (Class 12)
- Strategies for Enhancement in Food Production (Class 12)
- Succession (Class 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 2025 Examination.
- General Characteristics of Pteridophytes and Gymnosperms
- Types of Algae and Their Pigments
- Biological Classification
- Structural Organization in Plants and Animals
- Cell: Structure and Functions
- Mycoplasma
- Nucleus
- Chromosomes
- Ribosomes
- Chloroplast
- Mitochondria
- Meiosis – Prophase I
- Plant Physiology
- C3, C4 Cycle
- Kranz Anatomy
- Glycolysis and Krebs Cycle
- ETS Complexes
- Photoperiodism
- Transpiration Pull
- Bulk Movement in Phloem
- Mineral Deficiency and Nitrogen Cycle
- Animal/Human Physiology
- All the topics with diagrams 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 2025 Examination.
- Gametogenesis in Plants
- Gametogenesis in Humans
- Reproductive structures in Plants and Animals
- Polyembryony, Parthenocarpy, Apomixis
- Menstrual Cycle
- Biotechnology
- Process and Applications
- BT Cotton, RNAi, Human Insulin, Gene therapy, Molecular dianostics
- Genetics and Evolution
- Dihybrid Cross, Linkage
- Codominance
- Pedigree Analysis
- Genetic Disorders
- Darwinism and Natural selection
- Human Evolution
- Biology in Human Welfare
- Human Immunity
- AIDS, Cancer
- Drugs
- Ecology and Environment
- Environmental issues
- Biogeochemical Cycles
- Population Interactions
- Adaptations
- Succession
NEET Important Books for Biology Section
For NEET Biology, NCERT textbooks are very important and indispensable. They present information in a clear and concise manner, aligning perfectly with the NEET Syllabus. Below we have provided a few important books for the NEET 2025 Biology. These books provide intricacies of biology, covering diverse topics like ecology, genetics, and human physiology. Understanding biological concepts becomes more accessible through these books, helping students not only for NEET but also building a strong foundation for future studies in the life sciences.
NEET 2025 Biology: Important Books | |
Book | Author |
Objective Biology (volumes 1 & 2) | GR Bathla |
Biology Classes 11 and 12 (Volume 1 & 2) | Pradeep Publications |
Objective Biology (Volume 1, 2, and 3 along with Practice Papers) | Dinesh Publications |
A Class Book for Botany | A C Dutta |
Objective Biology (volumes 1 and 2) | Trueman Publications |
NEET 2025 Biology: Preparation Tips
Preparing for NEET Biology involves focused study and strategic planning. Here are a few tips:
- Understand the Syllabus: Familiarize yourself with the NEET Biology syllabus and exam pattern. This helps in prioritizing topics and managing time effectively.
- Use NCERT Textbooks: For NEET, NCERT textbooks are crucial. Ensure you thoroughly study and understand these books as most of the questions are based on them.
- Create a Study Plan: Develop a structured study plan with dedicated time for each topic. Regularly review and adjust the plan as needed.
- Practice Previous Years’ Papers: Solving past years’ NEET papers and sample papers helps in understanding the type of questions asked and improves time management.
- Focus on Important Topics: Concentrate on high-weightage topics like Human Physiology, Plant Physiology, and Genetics. Make concise notes for these topics.
- Use Diagrams and Flowcharts: Biology involves many processes and structures. Drawing and reviewing diagrams and flowcharts can help in better understanding and retention.
- Revise Regularly: Regular revision is key to retaining information. Schedule periodic revisions to reinforce concepts and improve recall.
- Take Mock Tests: Regular mock tests help in assessing your preparation level and identifying areas that need improvement.
- Seek Help When Needed: Don’t hesitate to ask for help from teachers, peers, or online resources if you have doubts or need clarification on certain topics.