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NEET 2022 Biology Syllabus  - Class wise Topics & Chapterwise Weightage for NEET Biology 

Neet Mock Test 2022

National Eligibility Entrance Test, known as NEET, is a qualifying exam through which students can take admissions in various medical courses like MBBS and BDS in several medical and dental colleges in India. NEET is conducted by National Test Agency (NTA).

A candidate must pass Physics, Chemistry, and Biology/Biotechnology as their compulsory subjects in 11th and 12th to be eligible for NEET 2022. Knowing the NEET 2022 Syllabus of every subject well in advance helps students prepare well for the NEET exam. Students must thoroughly read the NEET Biology syllabus to prepare for the NEET 2022 exam and score excellent marks. Biology is one of the important subjects that come in NEET exams. In addition, the correct answers in Biology are the deciding factor in the NEET ranks if two or more candidates have scored the same marks. NEET Biology syllabus contains topics after considering various state boards, like CBSE, NIOS, COBSE and ICSE. Therefore, all the candidates must check the syllabus, which chapters hold more weightage from the NEET 2022 Biology syllabus in the NEET 2022 exam.

Register for Aakash Byju's NEET 2022 crash course today to get comprehensive study material, NEET mock test series, sample papers, and coaching by our expert faculty.  

NEET Biology syllabus 2022 – Class-wise

Class 11th Syllabus Class 12th Syllabus
Diversity in the Living World

Reproduction

Structural organization – Plants and Animals Genetics and Evolution
Cell Structure and Function Biology and Human welfare
Plant Physiology Biotechnology and its applications
Human physiology Ecology and environment

NEET Biology syllabus 2022 – Chapter-wise

NEET Biology 2022 syllabus is divided according to different chapters. The candidates must prepare every topic from class 11th and 12th Biology for their preparation to score outstanding marks in the NEET exam. The list of topics according to the chapters are listed below:

Class 11th chapter-wise NEET Biology syllabus

Unit 1 – Diversity in Living World

Biodiversity; Need for classification; Three domains of life; Taxonomy & Systematics; Concept of species and taxonomic hierarchy; Binomial nomenclature; Tools for study of Taxonomy
Herbaria, Botanical gardens; Five kingdom classification; Salient features and classification of plants; Salient features and classification of animals

Unit 2 – Structural Organisation in Animals and Plants

Morphology and modifications; Tissues; Anatomy and functions of different parts of flowering plants; Animal tissues;
Morphology, anatomy and functions of different systems

Unit 3 – 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; Chemical constituents of living cells: Biomolecules; Cell division

Unit 4 – Plant Physiology

Transport in plants; Long distance transport of water; Transpiration-Opening and closing of stomata; Uptake and translocation of mineral nutrients; Diffusion of gases Mineral nutrition; Deficiency symptoms; Mineral toxicity; Elementary idea of Hydroponics; Nitrogen metabolism-Nitrogen cycle, biological nitrogen fixation Photosynthesis; Site of photosynthesis take place; Photochemical and biosynthetic phases of photosynthesis; Cyclic and non-cyclic and photophosphorylation; Chemiosmotic hypothesis; Photorespiration C3 and C4 pathways; Factors affecting photosynthesis Respiration; Cellular respiration; Energy relations-Number of ATP molecules generated; Amphibolic pathways; Respiratory quotient
Plant growth and development; Differentiation, dedifferentiation and Redifferentiation; Sequence of developmental process in a plant cell; Growth
Regulators; Vernalisation; Photoperiodism

Unit 5 – Human Physiology

Digestion and absorption; Egestion; Nutritional and digestive disorders Breathing and Respiration; Respiratory system in humans; Mechanism of breathing and its regulation in humans; Disorders related to respiration-Asthma, Emphysema, Occupational respiratory disorders

Body fluids and circulation; Human circulatory system; Regulation of cardiac activity; Disorders of circulatory system- Hypertension, Coronary artery disease, Angina pectoris, Heart failure
Excretory products and their elimination; Human excretory system; Urine formation, Osmoregulation; Regulation of kidney function-Renin-angiotensin, Atrial Natriuretic Factor, ADH and Diabetes insipidus; Disorders; Uraemia, Renal failure, renal calculi, Nephritis; Dialysis and artificial kidney

Locomotion and Movement; Skeletal system and its functions; Joints; Disorders of muscular and skeletal system-Myasthenia Gravis, Tetany, Muscular dystrophy, Arthritis, Osteoporosis, Gout
Neural control and coordination; Nervous system in humans- central nervous system, peripheral nervous system and visceral nervous system

Generation and conduction of nerve impulse; Reflex action; Sense organs; Elementary structure and function of eye and ear
Chemical coordination and regulation; Human endocrine system-Hypothalamus, Pituitary, Pineal, Thyroid, Parathyroid, Adrenal, Pancreas, Gonads; Mechanism of hormone action; Role of hormones as messengers and regulators; Hypo-and hyperactivity and related disorders

Class 12th chapter-wise NEET Biology syllabus

Unit 1 – Reproduction

Reproduction in organisms; Asexual reproduction; Modes
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; Microscopic anatomy of testis and ovary; Gametogenesis-spermatogenesis & oogenesis; Menstrual cycle; Fertilisation, embryo development upto blastocyst formation, implantation; Pregnancy and placenta formation; Parturition; Lactation
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

Unit 2 – Genetics and Evolution

Heredity and variation: Mendelian 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 fingerprinting
Evolution: Origin of life; Biological evolution and evidences for biological evolution from Paleontology, comparative anatomy, embryology and molecular evidence); Darwin’s contribution, Modern Synthetic Theory of Evolution; Mechanism of evolution; Gene flow and genetic drift; Hardy-Weinberg’s principle; Adaptive Radiation; Human evolution

Unit 3 – Biology and Human Welfare

Health and Disease; Basic concepts of immunology-vaccines; Cancer, HIV and AIDS; Adolescence, drug and alcohol abuse
Improvement in food production; Plant breeding, tissue culture, single cell protein, Bio fortification; Apiculture and Animal husbandry
Microbes in human welfare: In household food processing, industrial production, sewage treatment, energy generation and as biocontrol agents and bio fertilizers

Unit 4 – Biotechnology and Its Applications

Principles and process of Biotechnology: Genetic engineering
Application of Biotechnology in health and agriculture: Human insulin and vaccine production, gene therapy; Genetically modified organisms-Bt crops; Transgenic Animals; Biosafety issues-Bio piracy and patents

Unit 5 – Ecology and environment

Organisms and environment; Population interactions-mutualism, competition, predation, parasitism; Population attributes-growth, birth rate and death rate, age distribution Ecosystem; Energy flow
Pyramids of number, biomass, energy; Nutrient cycling; Ecological succession; Ecological Services-Carbon fixation, pollination, oxygen release Biodiversity and its conservation; Patterns of Biodiversity; Importance of Biodiversity; Loss of Biodiversity; Biodiversity conservation; Hotspots, endangered organisms, extinction, Red Data Book, biosphere reserves, National parks and sanctuaries
Environmental issues: Air pollution and its control; Water pollution and its control; Agrochemicals and their effects; Solid waste management; Radioactive waste management; Greenhouse effect and global warming; Ozone depletion; Deforestation

NEET Biology Chapterwise Weightage

Chapters Approximate Weightage
Diversity of Living Organisms 12%
Structural Organisation in Plants & Animals 9%
Cell: Structure and Function 8%
Plant Physiology 8%
Human Physiology 16%
Reproduction 11%
Genetics and Evolution 13%
Biology and Human Welfare 9%
Biotechnology and its Applications 4%
Ecology and Environment

10%

NEET Biology Important Topics

One of the most important parts of NEET exam preparation is knowing the syllabus and important chapters for the exam. The NEET Biology section carries the maximum weightage compared to NEET Chemistry and NEET Physics. NEET Biology comprises 90 questions, which are further divided into Botany (40-45 Questions) and Zoology (40-45 Questions). We have compiled a list of some of the important concepts from the NEET 2022 syllabus released by the NTA. You can go through these important concepts to revise and prepare for your upcoming NEET examination.

Biodiversity Chordates Cell Wall
Taxonomy Morphology in Flowering Plants Cell Organelles
Biological Systems of Classification Branches of Taxonomy Morphology of Root and Its Types Endomembrane System
Taxonomic Aids Morphology in Flowering Plants Nuclear Membrane
Scientific Names of Plants and Animals Chapter Anatomy of Flowering Plants Chromosome and Chromatids
Monera Anatomy of Roots Chromatin
Kingdom Monera Anatomy of Stem Nucleolus
Protista Cell Organelles Contractile Proteins
Kingdom Fungi Cell the Basic Unit of Life Diffusion Means of Transport Biology
Habitat of Fungi What Is a Cell Guttation
Algae and Fungi An Overview of Cell Passive Transport
Reproduction in Fungi Cell Structure and Function Introduction Hydroponics and the Study of Mineral Requirements of the Plants
Viruses Cell Theory and Its Modification Photosynthesis
Pteridophytes Cell Respiration
Pteridophytes Alternation of Generations Prokaryotic Cell Aerobic Anaerobic Respiration
Algae Eukaryotic Cell Seed Germination
Phaeophyceae and Rhodophyceae Plants Alimentary Canal
Bryophytes Cell Envelopes and Cell Membrane Invagination Internal Anatomy Alimentary Canal
Gymnosperms Cytoplasm and Cell Membrane Human Digestive System
Difference Between Gymnosperms and Angiosperms Cell Wall and Cell Membrane Peristalsis
Disorders of Respiratory System Regulation of Respiration Movement and Locomotion
Chapter Breathing and Exchange of Gases Blood and Plasma Cilia and Flagella
Human Respiratory System Human Heart Endocrine System Ductless Gland

NEET Exam Dates

The NEET UG 2022 Registration has begin on April 6. The registration would continue till May 7, 2022. check out more about notifications on NEET 2022 Exam Dates

NEET Biology Important Chapters

Frequently Asked Questions on NEET Biology syllabus

Ques 1: Can I leave some topics while preparing for the NEET exam from the NEET Biology syllabus?
No, an aspirant must not leave any topic from the NEET Biology syllabus. In addition, more correct answers in Biology help candidates get a higher rank if two or more candidates have secured the same marks.

Ques 2: How to prepare so many topics from the NEET Biology syllabus?
Aspirants must complete all the topics one to two months before the NEET exam to get sufficient time for revision. In addition, making short notes for every chapter and revising them helps retain the concepts in mind for a longer time.

Ques 3: Is it necessary to take a NEET Mock Test for Biology syllabus?
Yes, candidates must take mock tests weeks before the main NEET exam. It helps in time management, strategizing which section to attempt first, and creating a balance between easy and tough questions. Candidates must take mock tests like real NEET exams.

Ques 4: Which chapter holds maximum weightage in NEET Biology Syllabus?
Human psychology, reproduction, genetics, and evolution hold the maximum weightage in the NEET Biology syllabus. However, the candidate must prepare every chapter thoroughly as questions can come from any chapter irrespective of the weightage.

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