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NEET Biology Syllabus 2024

Last updated date: 03rd Mar 2024
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NEET 2024 Biology Syllabus for Medical Entrance Examination - Free PDF Download

NEET 2024 Biology Syllabus for the medical examination in PDF format is available to download on Downloading the biology NEET Syllabus 2024 will help candidates to prepare for the exam thoroughly & to score more marks in NEET Examination.

NEET Biology Syllabus 2024

The syllabus is the utmost important part as it helps all the candidates to know about the various topics/subjects on which they must work for the examination. Students can also download the NEET Question Paper, NEET Sample Papers and NEET Important Questions for NEET 2024 exam preparation.

NEET Biology Syllabus Chapter wise

Also check for: How Do I Do Long-Term Memorization for the NEET using syllabus?

NEET 2024 Biology Syllabus for Medical Entrance Examination - Free PDF Download

The first chapter in the NEET Biology syllabus is The Living Word. In this chapter, students will deeply learn about living organisms. Students will also have a brief run-through of biological concepts like biodiversity. Other concepts like three domains of life, taxonomy and systematics, concepts of species and taxonomic hierarchy, binomial nomenclature, tools of study of taxonomy - museums, zoological parks, herbaria, botanical gardens, etc., will also be explained.

Chapters Covered in the NEET 2024 Biology Syllabus

The following table shows the list of unit-wise chapters that are covered in Class 11 NEET Biology Syllabus 2024.

Unit No.

Chapter Name


Diversity in Living World


Structural Organisation in Animals and Plants


Cell Structure and Function


Plant Physiology


Human Physiology

The following table includes the list of unit-wise chapters that have been covered in Class 12 NEET Biology Syllabus 2024.

Unit No.

Chapter Name




Genetics and Evolution


Biology and Human Welfare


Biotechnology and Its Applications


Ecology and environment


The above-mentioned chapters are available on the Vedantu app or website. Get the latest syllabus for the NEET Biology Exam and prepare accordingly. Find out the chapters you need to prepare and set your biology study sessions accordingly. 

Detailed Updated Syllabus of Biology NEET 2024

Sl. No

Biology Chapters In the NEET 2024 Syllabus

Topic Details


Diversity In the Living World

  • What is living?; Biodiversity; Need for classification;; 

  • Taxonomy and Systematics; Concept of species and taxonomical hierarchy; Binomial nomenclature.

  • Five kingdom classifications; 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 fivr salient and distinguishing features and at least 2 examples of each category)

  • Salient features and classification of animals-nonchordate up to phyla level and chordate up to classes level (3-5 salient features and at least 2 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, leguminosae, compositae, gramineae.)


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 (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.

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


Plant Physiology

  • Photosynthesis as a means of Autotrophic nutrition; 

  • Site of photosynthesis take place; pigment 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 gasses; 

  • 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 development process in a plant cell;

  • Growth regulators- auxin, gibberellin, cytokinin, ethylene, ABA


Human Physiology

  • Breathing and respiratory organs in animals (recall only); 

  • Respiratory system in humans; 

  • Mechanism of breathing and its regulation in human-exchange of gasses, transport of gasses and regulation of respiration  

  • Respiratory volumes; Disorders related to respiratory-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, flagellar, muscular;

  • Skeletal muscle- contractile proteins and muscle contraction;

  • Skeletal system and its functions (To be dealt with the relevant practical of Practice 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;

  • 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, Goiter, Exophthalmic goiter,diabetes, Addison’s disease.)

*Disease and disorders mentioned above to be dealt 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 event- 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 and oogenesis;

  • Menstrual cycle;

  • Fertilization, 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 ad Methods, Contraception and Medical Termination of Pregnancy (MTP);

  • Aminocentesis; 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, Multiple alleles and inheritance of blood groups, Pleiotropy;

  • Elementary idea of polygenic inheritance;

  • Chromosome theory of inheritance;

  • Chromosome and genes;

  • Sex determination-in humans, birds, honey bee;

  • Linkage and crossing over; Sex linked inheritance-Haemophilia, Colour blindness;

  • Mendelian disorders in human-Thalassemia; 

  • Chromosomal disorders in human;

  • 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;

  • Packaging;

  • DNA replication;

  • Central dogma;

  • Transcription, genetic code, translation; 

  • Gene expression and regulation- Lac Operon;

  • Genome and human genome project; DNA fingerprinting, 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 9/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

  • Health and Diseases;

  • Pathogens;

  • Parasites causing human diseases (Malaria, Filariasis,Ascariasis. Typhoid, Pneumonia, common cold, amoebiasis, ringworm, 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 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, Nation parks and sanctuaries, Sacred Groves.

Important Topics and Chapter-wise Weightage for Biology NEET

In the pursuit of a successful career in the medical field, a clear understanding of the Class XI Biology syllabus and its weightage in the NEET exam is paramount. This crucial information allows aspiring medical students to focus their efforts efficiently and maximize their chances of success. Here, we will explore the important topics and chapter-wise weightage for Biology in the NEET examination. By delving into this table, students can strategically plan their study approach and ensure they are well-prepared to tackle the challenging NEET paper.


Biology Important Chapters for NEET 2024



Human Physiology



Diversity of the Living World



Structural Organisation in Animals and Plants



Plant Physiology



Cell Structure and Function



Genetics and Evolution



Ecology and Environment 






Biology in Human Welfare



Biotechnology and Its Applications



The NEET 2024 Biology Syllabus for the Medical Entrance Examination is an essential resource for aspiring medical students. This comprehensive syllabus not only covers the fundamental concepts but also delves into advanced topics crucial for a thorough understanding of biology in the context of medical sciences. With the availability of a free PDF download, it promotes accessibility and equal opportunities for all candidates, irrespective of their background. This resource empowers students to prepare effectively, ensuring they are well-equipped to excel in the competitive NEET exam. By studying this syllabus, students can aspire to achieve their dreams of pursuing a rewarding career in the medical field.

FAQs on NEET Biology Syllabus 2024

1. What are the tips to score maximum marks in the NEET Biology exam by referring to NEET Biology Syllabus 2023?

Maximum questions are asked from this subject hence biology is considered the most important component of NEET exams. The most important step that should be taken that helps in the preparation for NEET exams is planning. Students should prepare an effective study plan beforehand and should follow it every day. Also, one wise choice that students can make is to focus mostly on the chapters that contain high weightage. Referring to good books by reputed authors and publications will help the students in scoring good marks as the content available in these books is correct and valid. 

2. What are important chapters in the NEET Biology Syllabus 2023?

The most important chapters in the NEET Biology section are human physiology, evolution and genetics, and the diversity of living organisms. This information is derived from the weightage of the chapters which is 20%, 18%, and 14%, respectively. Hence, it is advised for the students to focus more on these chapters and get all their doubts cleared in a systematic manner. Vedantu app or website provides you with effectively revised study material which includes reference notes, diagrams, video modules, etc. that will help you ace your exams.

3. Is NEET Biology hard to crack?

As compared to physics and chemistry exams, biology exams are said to be the easiest. As biology mostly contains diagrams and theoretical concepts it is considered to be easy. In order to learn biology effectively, students should always master the general concepts before tackling the specific ones. Diagrams play an important role in clearing the concepts. The diagrams in biology are each vivid and unique. Hence, they are easy to remember. 

4. How do students avoid exam-related stress?

Although having a strict and disciplined study plan is essential in cracking NEET exams, it is also necessary to take good care of your mental and physical health. Make sure you give yourself time to relax and freshen up your mind. If you have a disturbed or stressed mind anywhere near the time of the examinations, chances are high that you could end up getting panicked during the exams and will be prone to forget everything that you have studied for the exam. It is also highly recommended for the parents and institutes to not pressurize their children/students during exams. 

5. What is more effective to understand the concepts: video modules or books?

While books help you provide proper information about a particular concept, video modules on the other hand provide you with explanations from all the angles which is much more interesting. It also helps you visualise concepts which in turn helps the students in increasing their imagination. Video modules also help in understanding practical concepts like experiments, etc. Video modules also help students in distant learning. Vedantu app or website provides the students with the option of distant learning; to learn and explore concepts from the comfort of their homes!