06 Dec 2021

NEET 2022 Biology Syllabus

NEET 2022 Biology Syllabus: Botony and Zoology Syllabus with weightage

NEET biology syllabus consists of botany and zoology from the class 11th and 12th. Biology is an indispensable section because carries around 50% of the total weightage in the NEET 2022 Examination. Before going to start the preparation it is mandatory to know the detailed information about the Biology syllabus. If NEET aspirants want to get a good rank in NEET 2022, then they want to know the detailed syllabus of the biology section. The detailed information on the important topics of biology is covered from the class 11th and 12th below.

The difficulty level of the NEET Exam increased year by year. Biology is a mandatory section for NEET aspirants. Biology makes the major difference between the success and failure of candidates in all the medical entrance examinations. The students are advised to be prepared thoroughly for this subject.

NEET aspirants also, check the NEET physics Syllabus before starting the preparation,

NEET 2022 Physics Syllabus

NEET Chemistry Syllabus

NEET 2022 Biology Syllabus Class 11:

Important topics of NEET 2022 Biology syllabus from class 11 unit wise,

   Units Topics

Unit I

Diversity in Living World

Unit II

Structural Organization in Plants and Animals

Unit III

Cell Structure and Function

Unit IV

Plant Physiology

Unit V

Human Physiology

Detailed Important Topics of Biology Syllabus class 11:

Unit 1 – Diversity in Living World

What is living?

Biodiversity; Need for classification; Three domains of life; Taxonomy & Systematics; Concept of species and taxonomical hierarchy; Binomial; ; nomenclature

Biological Classification:

Five kingdom classification; 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, and Angiosperms (three to five salient and distinguishing features and at least two examples of each category); Angiosperms- classification up to class, characteristic features, and examples).

Animal Kingdom:

Salient features and classification of animals-non chordates up to phyla level and chordate up to classes level (three to five salient features and at least two examples).

UNIT 2: Structural Organisation in Animals and Plants

 

Morphology of Flowering Plants

Morphology and modifications; Tissues; Anatomy and functions of different parts of flowering plants: Root, stem, leaf, inflorescence- cymose and racemose, flower, fruit, and seed (To be dealt along with the relevant practical of the Practical Syllabus).

Structural Organization in Animals

Animal tissues; Morphology, anatomy, and functions of different systems (digestive, circulatory, respiratory, nervous, and reproductive) of an insect (cockroach).

Unit 3 – 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, microbodies; Cytoskeleton, cilia, flagella, centrioles (ultrastructure 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.

Cell Cycle and Cell Division:

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

Unit 4 – Plant Physiology

Photosynthesis in Higher Plants:

Transport in plants: Movement of water, gases, and nutrients; Cell to cell transport-Diffusion, facilitated diffusion, active transport; Plant — water relations — imbibition, water potential, osmosis, plasmolysis; Long-distance transport of water— Absorption, apoplast, symplast, transpiration pull, root pressure, and guttation; Transpiration-Opening and closing of stomata; Uptake and translocation of mineral nutrients-Transport of food, phloem transport, Mass flow hypothesis; Diffusion of gases (brief mention).

Mineral nutrition:

Essential minerals, macro and micronutrients, and their role; Deficiency symptoms; Mineral toxicity; Elementary idea of Hydroponics as a method to study mineral nutrition; Nitrogen metabolism-Nitrogen cycle, biological nitrogen fixation.

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:

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; Seed dormancy; Vernalisation; Photoperiodism.

Unit 5 – 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 the 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 the 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, flagella, 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; Reflex action; Sense organs; Elementary structure and function of eye and ear.

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).

NEET 2022 Biology Syllabus Class 12:

Important topics of NEET 2022 Biology syllabus from class 12 unit wise,

   Units Topics

Unit I

 Reproduction

Unit II

Genetics and Evolution

Unit III

Biology and Human Welfare

Unit IV

Biotechnology and its Applications

Unit V

 Ecology and Environment

Detailed Important Topics of Biology Syllabus class 12:

UNIT I: 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.

Human Reproduction:

Male and female reproductive systems; Microscopic anatomy of testis and ovary; Gametogenesis-spermatogenesis & oogenesis; Menstrual cycle; Fertilisation, 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 and Methods, Contraception and Medical Termination of Pregnancy (MTP); Amniocentesis; Infertility and assisted reproductive technologies — IVF, ZIFT, GIFT (Elementary idea for general awareness).

UNIT II: 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 and human genome project; DNA fingerprinting.

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 (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.

UNIT III: Biology and Human Welfare

 

Human Health and Diseases:

Pathogens; parasites causing human diseases (Malaria, Filariasis, Ascariasis. Typhoid, Pneumonia, common cold, amoebiasis, ringworm); Basic concepts of immunology-vaccines; Cancer, HIV, and AIDS; Adolescence, drug and alcohol abuse.

Microbes in human welfare:

In household food processing, industrial production, sewage treatment, energy generation, and as biocontrol agents and biofertilizers.

UNIT IV: 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.

UNIT V: Ecology and environment

Organisms and environment:

Habitat and niche; Population and ecological adaptations; Populations 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; Nutrient cycling (carbon and phosphorous); Ecological succession; Ecological Services-Carbon fixation, pollination, oxygen release.

 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.

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; Any three case studies as success stories addressing environmental issues.

NEET Biology Weightage:

NEET biology weightage calculated by previous year question paper,

Chapter No. of Questions
The Living World 1
Biological Classification 1
Plant Kingdom 5
Animal Kingdom 4
Morphology of Flowering Plants 2
Anatomy of Flowering Plants 3
Structural Organisation in Animals 3
Cell: The Unit of Life 2
Biomolecules 3
Cell Cycle and Cell Division 7
Transport in Plants 1
Photosynthesis in Higher Plants 4
Respiration in Plants 1
Plant Growth and Development 3
Digestion and Absorption 2
Breathing and Exchange of Gases 3
Body Fluids and Circulation 3
Locomotion and Movement 4
Sexual Reproduction in Flowering plants 3
Human Reproduction 3
Reproductive Health 3
Principles of Inheritance and Variation 2
Molecular Basis of Inheritance 10
Evolution 1
Human Health and Disease 3
Strategies for Enhancement in Food Production 3
Microbes in Human Welfare 1
Biotechnology: Principles and Processes 6
Biotechnology and its Applications 5
Organisms and Populations 4
Ecosystem 3
Environmental Issues 1

NEET Syllabus 2022

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