📚 Official Curriculum & Master Syllabus
🌱 NCERT Class 11 Biology: Syllabus & Course Map
Transform the entire NCERT Class 11 Biology curriculum into crystal-clear, easy-to-understand visual lecture notes. Designed with real-world analogies, active recall checklists, examiner cautions, and vector diagrams to give every student 10 out of 10 concept clarity.
19
Syllabus Modules
142
Mapped Topics
19
Chapter Pages
CURRICULUM ROADMAP
Interactive Syllabus & Modular Structure
Official curriculum mapped to university degree syllabi and competitive examinations. Each module links directly to its dedicated study notes page and relevant subtopics.
19 Modules
Module 01
Notes →
The Living World
What is Living? Defining vs Characteristic Features of Life
Biodiversity, Need for Classification & Systematics
Binomial Nomenclature & Rules of the ICZN / ICBN
Taxonomic Hierarchy: Kingdom, Phylum, Class, Order, Family, Genus, Species
Taxonomical Aids & Identification Tools (Herbarium, Botanical Gardens, Museums, Keys)
Module 02
Notes →
Biological Classification
Historical Systems: Two Kingdom to Five Kingdom Classification (R.H. Whittaker 1969)
Kingdom Monera: Archaebacteria, Eubacteria, Cyanobacteria & Mycoplasma
Kingdom Protista: Chrysophytes, Dinoflagellates, Euglenoids, Slime Moulds & Protozoans
Kingdom Fungi: Phycomycetes, Ascomycetes, Basidiomycetes & Deuteromycetes
Acellular Entities: Viruses, Viroids, Prions & Symbiotic Lichens
Module 03
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Plant Kingdom
Classification Systems: Artificial, Natural (Bentham & Hooker) & Phylogenetic
Algae: Chlorophyceae (Green), Phaeophyceae (Brown) & Rhodophyceae (Red)
Bryophytes (Amphibians of Plant World): Liverworts & Mosses
Pteridophytes (First Vascular Land Plants): Ferns, Horsetails & Heterospory
Gymnosperms (Naked Seeds) & Angiosperms (Flowering Seed Plants)
Plant Life Cycles: Haplontic, Diplontic & Haplodiplontic Alternation of Generations
Module 04
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Animal Kingdom
Basis of Classification: Symmetry, Germ Layers, Coelom & Segmentation
Non-Chordates I: Porifera (Sponges), Coelenterata (Cnidaria) & Ctenophora
Non-Chordates II: Platyhelminthes (Flatworms) & Aschelminthes (Roundworms)
Non-Chordates III: Annelida, Arthropoda (Largest Phylum), Mollusca & Echinodermata
Hemichordata: Stomochord & Transitional Features
Phylum Chordata: Urochordata, Cephalochordata & Vertebrata
Vertebrate Classes: Cyclostomata, Chondrichthyes, Osteichthyes, Amphibia, Reptilia, Aves, Mammalia
Module 05
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Morphology of Flowering Plants
The Root System: Tap, Fibrous & Adventitious Roots; Regions of Root Tip & Modifications
The Stem: Nodes, Internodes & Modifications (Tendrils, Thorns, Phylloclade, Underground storage)
The Leaf: Venation (Reticulate vs Parallel), Phyllotaxy & Leaf Modifications
Inflorescence: Racemose (Indeterminate) vs Cymose (Determinate)
The Flower: Calyx, Corolla, Aestivation (Valvate, Twisted, Imbricate, Vexillary)
Placentation: Marginal, Axile, Parietal, Free Central, Basal
Fruit & Seed Structure; Semi-Technical Floral Description & Family Solanaceae
Module 06
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Anatomy of Flowering Plants
Meristematic Tissues: Apical, Intercalary & Lateral Meristems
Permanent Tissues: Simple (Parenchyma, Collenchyma, Sclerenchyma) & Complex (Xylem, Phloem)
Tissue Systems: Epidermal, Ground (Cortex, Pericycle, Pith) & Vascular System
Anatomy of Dicotyledonous vs Monocotyledonous Root
Anatomy of Dicotyledonous vs Monocotyledonous Stem
Anatomy of Dorsiventral (Dicot) vs Isobilateral (Monocot) Leaf
Secondary Growth: Vascular Cambium, Cork Cambium (Phellogen), Heartwood vs Sapwood, Annual Rings
Module 07
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Structural Organisation in Animals
Epithelial Tissue: Simple (Squamous, Cuboidal, Columnar, Ciliated) & Compound Epithelium
Cell Junctions: Tight Junctions, Adhering Junctions & Gap Junctions
Connective Tissue: Loose (Areolar, Adipose), Dense (Tendons, Ligaments) & Specialized (Cartilage, Bone, Blood)
Muscular Tissue: Skeletal (Striated, Voluntary), Smooth (Non-striated, Involuntary) & Cardiac Muscle
Neural Tissue: Neurons, Neuroglia & Synaptic Continuity
Model Animal Morphology & Anatomy: The Frog (Rana tigrina) Digestive, Circulatory, Respiratory & Reproductive Systems
Module 08
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Cell: The Unit of Life
Cell Theory: Schleiden, Schwann & Rudolf Virchow ('Omnis cellula-e cellula')
Prokaryotic Cell Architecture: Cell Envelope, Mesosomes, Plasmids & 70S Ribosomes
Eukaryotic Plasma Membrane: Fluid Mosaic Model of Singer & Nicolson (1972)
The Endomembrane System: Endoplasmic Reticulum (RER & SER), Golgi Apparatus, Lysosomes & Vacuoles
Semiautonomous Energy Organelles: Mitochondria (Cristae, ATP Synthase) & Plastids (Chloroplasts, Thylakoids)
Ribosomes (80S Eukaryotic), Cytoskeleton (Microtubules, Microfilaments) & Cilia/Flagella (9+2 Axoneme)
The Nucleus: Nuclear Envelope, Chromatin, Nucleolus & Chromosome Morphology (Centromere, Kinetochore)
Module 09
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Biomolecules
Chemical Analysis: Acid-Soluble Pool (Biomicromolecules) vs Acid-Insoluble Pellets (Biomacromolecules)
Primary vs Secondary Metabolites (Alkaloids, Flavonoids, Terpenoids, Toxins, Lectins)
Proteins: Amino Acid Building Blocks, Peptide Bonds & 1°, 2°, 3°, 4° Structural Levels
Polysaccharides: Starch, Glycogen, Cellulose & Glycosidic Bonds
Lipids: Fatty Acids, Glycerol, Phospholipids (Lecithin) & Sterols
Nucleic Acids: Nucleosides, Nucleotides, Phosphodiester Bonds & Double Helix Watson-Crick B-DNA
Enzymology: Activation Energy, Active Site, Factors Affecting Activity (pH, Temp, Substrate Conc)
Enzyme Inhibition: Competitive (Km increases, Vmax constant e.g. Malonate vs Succinate Dehydrogenase) vs Non-competitive
Module 10
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Cell Cycle and Cell Division
Cell Cycle Phases: Interphase (G1, S, G2) & M Phase; Quiescent G0 Checkpoint
S Phase Molecular Events: DNA Replication & Centriole Duplication
Mitosis Stages: Prophase, Metaphase (Equatorial Plate), Anaphase (Centromere Split), Telophase & Cytokinesis
Significance of Mitosis: Growth, Tissue Repair & Maintaining Nucleo-Cytoplasmic Ratio
Meiosis I Reductional Division: Prophase I Sub-stages (Leptotene, Zygotene, Pachytene, Diplotene, Diakinesis)
Synapsis, Synaptonemal Complex, Crossing Over (Recombinase) & Chiasmata Resolution
Meiosis II Equational Division & Significance: Genetic Variation & Gametogenesis
Module 11
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Photosynthesis in Higher Plants
Historical Experiments: Priestley (Bell jar), Ingenhousz (Sunlight), Sachs (Starch), Engelmann (Action spectrum)
Photosynthetic Pigments: Chlorophyll a (Reaction center), Chlorophyll b, Carotenoids & Xanthophylls
Light Reaction (Photochemical Phase): Photosystem II (P680) & Photosystem I (P700)
Photolysis of Water (Oxygen-Evolving Complex) & The Z-Scheme Electron Flow
Cyclic vs Non-Cyclic Photophosphorylation
Chemiosmotic Hypothesis of ATP Synthesis (Peter Mitchell)
Dark Reaction (Biosynthetic Phase): The Calvin C3 Cycle (Carboxylation, Reduction, Regeneration)
The C4 Pathway (Hatch & Slack): Kranz Anatomy, Bundle Sheath Cells & PEPCase Adaptation
Photorespiration (C2 Cycle) & Factors Affecting Photosynthesis (Blackman's Law of Limiting Factors)
Module 12
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Respiration in Plants
Cellular Respiration Fundamentals: Aerobic Respiration vs Fermentation (Lactic & Alcoholic)
Glycolysis (EMP Pathway): 10 Enzymatic Steps, ATP Investment vs Payoff, Cytosolic Location
Link Reaction (Oxidative Decarboxylation of Pyruvate to Acetyl-CoA by Pyruvate Dehydrogenase)
Tricarboxylic Acid (TCA / Krebs Cycle): Matrix Location, Key Intermediates, Substrate-Level Phosphorylation
Electron Transport System (ETS) & Oxidative Phosphorylation: Mitochondrial Complexes I, II, III, IV & V
Respiratory Balance Sheet: Theoretical 36-38 ATP Yield per Glucose
Amphibolic Nature of Respiration & Respiratory Quotient (RQ = CO2 evolved / O2 consumed)
Module 13
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Plant Growth and Development
Characteristics of Plant Growth: Indeterminate, Open & Measurable; Arithmetic vs Geometric Growth
Phases of Growth: Meristematic, Elongation & Maturation
Differentiation, Dedifferentiation (Interfascicular Cambium) & Redifferentiation
Development & Plasticity (Heterophylly in Cotton, Coriander, Larkspur vs Buttercup)
Plant Growth Promoters: Auxins (Apical Dominance, 2,4-D Herbicide), Gibberellins (Bolting, Internode Elongation), Cytokinins (Cell Division, Delaying Senescence)
Plant Growth Inhibitors: Ethylene (Gaseous Fruit Ripening, Triple Response) & Abscisic Acid (ABA / Stress Hormone)
Photoperiodism (Short-day, Long-day & Day-neutral Plants; Florigen) & Vernalization (Chilling Requirement)
Module 14
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Breathing and Exchange of Gases
Respiratory Organs Across Animal Phyla & Human Respiratory System Anatomy
Mechanism of Breathing: Inspiration (Diaphragm & External Intercostals Contract) vs Expiration
Respiratory Volumes & Capacities: TV (500 mL), IRV, ERV, RV, IC, FRC, VC & TLC
Exchange of Gases: Partial Pressures (pO2 & pCO2 in Alveoli, Blood & Tissues) & Diffusion Membrane
Transport of Oxygen: Oxyhemoglobin Dissociation Curve & Factors Shifting Curve (Bohr Effect)
Transport of Carbon Dioxide: As Bicarbonate (70% via Carbonic Anhydrase), Carbaminohemoglobin (20-25%) & Dissolved in Plasma (7%)
Regulation of Respiration: Medullary Respiratory Rhythm Center, Pons Pneumotaxic Center & Aortic/Carotid Chemoreceptors
Respiratory Disorders: Asthma (Allergic Wheezing), Emphysema (Alveolar Wall Breakdown / Smoking) & Occupational Lung Diseases
Module 15
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Body Fluids and Circulation
Blood Composition: Plasma Proteins (Fibrinogen, Globulins, Albumin) & Formed Elements (RBCs, WBCs, Platelets)
Blood Groups: ABO Antigen System, Rh Factor & Erythroblastosis Fetalis
Coagulation of Blood: Clotting Cascade, Thromboplastin, Prothrombinase, Thrombin & Fibrin Mesh
Lymph (Tissue Fluid): Composition, Functions & Lacteal Fat Absorption
Circulatory Pathways: Open vs Closed; Single vs Incomplete vs Double Circulation
Human Heart Anatomy: 4 Chambers, Atrioventricular Valves (Tricuspid & Bicuspid/Mitral), Semilunar Valves
Cardiac Conduction System: SA Node (Pacemaker ~72 bpm), AV Node, Bundle of His & Purkinje Fibers
The Cardiac Cycle: Atrial Systole, Ventricular Systole, Joint Diastole (0.8s) & Heart Sounds (LUB-DUB)
Electrocardiogram (ECG): P Wave (Atrial Depolarization), QRS Complex (Ventricular Depolarization), T Wave (Ventricular Repolarization)
Disorders: Hypertension (High BP), Coronary Artery Disease (Atherosclerosis), Angina Pectoris & Heart Failure
Module 16
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Excretory Products and their Elimination
Nitrogenous Wastes: Ammonotelism (Bony fishes, Aquatic amphibians), Ureotelism (Mammals, Frogs), Uricotelism (Birds, Reptiles, Insects)
Human Excretory System: Gross Kidney Anatomy, Cortex, Medulla, Renal Pyramids & Pelvis
Nephron Histology: Malpighian Corpuscle (Glomerulus + Bowman's Capsule), PCT, Henle's Loop, DCT & Collecting Duct
Mechanism of Urine Formation: Glomerular Ultrafiltration (Net Filtration Pressure, GFR = 125 mL/min = 180 L/day)
Tubular Reabsorption (99% of Filtrate Reclaimed) & Selective Tubular Secretion (K+, H+, NH3)
Counter-Current Multiplier Mechanism: Henle's Loop & Vasa Recta Creating Medullary Hyperosmolarity (1200 mOsm/L)
Regulation of Kidney Function: Hypothalamus-ADH (Vasopressin), Renin-Angiotensin-Aldosterone System (RAAS) & Atrial Natriuretic Factor (ANF)
Micturition Reflex & Excretory Disorders: Uremia, Renal Calculi (Kidney Stones) & Glomerulonephritis; Hemodialysis
Module 17
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Locomotion and Movement
Types of Movement: Amoeboid (Macrophage pseudopodia), Ciliary (Trachea, Oviduct) & Muscular
Skeletal Muscle Ultrastructure: Muscle Fascicles, Sarcolemma, Sarcoplasmic Reticulum & Myofibrils
Contractile Proteins: Thin Actin Filaments (F-actin, Tropomyosin, Troponin) & Thick Myosin Filaments (Meromyosin, Heavy & Light chains)
Sliding Filament Theory of Muscle Contraction: Neuromuscular Junction, Acetylcholine, Ca2+ Release from SR, Cross-Bridge Cycling
Red Muscle Fibers (Aerobic, High Myoglobin, Abundant Mitochondria) vs White Muscle Fibers (Anaerobic, Fast Twitch)
Human Skeletal System: Axial Skeleton (80 bones: Skull, Vertebral Column, Ribs, Sternum) & Appendicular Skeleton (126 bones: Limbs, Pectoral & Pelvic Girdles)
Joints: Fibrous (Synarthroses), Cartilaginous (Amphiarthroses) & Synovial (Ball-and-Socket, Hinge, Pivot, Gliding, Saddle)
Musculoskeletal Disorders: Myasthenia Gravis, Tetany (Low Ca2+), Muscular Dystrophy, Arthritis, Osteoporosis & Gout (Uric Acid Crystals)
Module 18
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Neural Control and Coordination
Neural System Organization: Central Nervous System (CNS) & Peripheral Nervous System (PNS: Somatic & Autonomic)
Neuron Structure: Cell Body (Soma, Nissl's granules), Dendrites, Axon & Myelin Sheath (Schwann Cells, Nodes of Ranvier)
Generation of Nerve Impulse: Resting Membrane Potential (-70 mV, Na+/K+ ATPase Pump, High K+ inside, High Na+ outside)
Conduction of Action Potential: Depolarization (Rapid Na+ Influx), Repolarization (K+ Efflux) & Saltatory Conduction
Transmission Across Synapses: Electrical Synapses (Gap Junctions) vs Chemical Synapses (Neurotransmitters: Acetylcholine)
Central Nervous System Anatomy: Forebrain (Cerebrum, Thalamus, Hypothalamus), Midbrain (Corpora Quadrigemina) & Hindbrain (Cerebellum, Pons, Medulla)
Limbic System (Emotional Brain) & Reflex Action / Reflex Arc
Sensory Reception: Eye Anatomy (Cornea, Lens, Retina, Rods/Cones, Rhodopsin, Blind spot, Fovea) & Ear Anatomy (External, Middle, Inner Ear: Organ of Corti & Vestibular Apparatus for Balance)
Module 19
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Chemical Coordination and Integration
Endocrine Glands vs Exocrine Glands; Definition of Hormones (Non-nutrient chemical messengers in trace amounts)
Hypothalamus: Releasing Hormones (GnRH) & Inhibiting Hormones (Somatostatin); Posterior Pituitary Connections
Pituitary Gland (Hypophysis): Adenohypophysis (GH, PRL, TSH, ACTH, LH, FSH) & Neurohypophysis (Oxytocin, Vasopressin/ADH)
Pineal Gland: Melatonin & Regulation of 24-Hour Circadian Diurnal Rhythm
Thyroid Gland: T3, T4 (Thyroxine) & Thyrocalcitonin (TCT); Hypothyroidism (Goitre, Cretinism) vs Hyperthyroidism (Graves' Disease)
Parathyroid Glands: Parathyroid Hormone (PTH / Hypercalcemic Hormone) Antagonizing TCT
Thymus Gland: Thymosins & Differentiation of T-Lymphocytes (Cell-Mediated Immunity)
Adrenal Gland: Adrenal Cortex (Aldosterone, Cortisol, Androgens) & Adrenal Medulla (Adrenaline / Epinephrine 3F Emergency Hormone)
Pancreas (Islets of Langerhans): Glucagon (Alpha cells / Hyperglycemic) & Insulin (Beta cells / Hypoglycemic; Diabetes Mellitus)
Gonadal Hormones: Testis (Testosterone / Androgens) & Ovary (Estrogen & Progesterone)
Hormones of Non-Endocrine Tissues: Heart (ANF), Kidney (Erythropoietin) & Gastrointestinal Tract (Gastrin, Secretin, CCK, GIP)
Mechanisms of Hormone Action: Peptide Hormones via Membrane Receptors & Second Messengers (cAMP, IP3, Ca2+) vs Lipid-Soluble Steroid Hormones via Intracellular Nuclear Receptors
Core Learning Outcomes & Competencies
Upon mastery of this comprehensive syllabus, students and researchers are expected to:
✓
Explain the hierarchical taxonomic classification of life, comparing five biological kingdoms, plant phyla, and animal body plans.
✓
Relate plant morphology and internal anatomy (roots, stems, leaves, flowers) to functional environmental adaptations and secondary growth.
✓
Compare prokaryotic and eukaryotic cellular ultrastructure, biomacromolecular compositions, and the phases of mitosis and meiosis.
✓
Outline the biochemical energetics of photosynthesis (Z-scheme, Calvin cycle, C4 Kranz anatomy) and cellular respiration (Glycolysis, Krebs cycle, ETS).
✓
Analyze the homeostatic integration of human organ systems: pulmonary gas exchange, cardiac cycle, countercurrent nephron mechanics, sarcomere contraction, action potential propagation, and endocrine hormonal feedback.
CHAPTER DIRECTORY
Dedicated Chapter & Lecture Pages (19)
Browse every individual chapter, experimental protocol, and specialized topic module published in this discipline.
19 Pages
NCERT Class 11 Biology: Chapter 1 — The Living World
NCERT Class 11 Biology: Chapter 2 — Biological Classification
NCERT Class 11 Biology: Chapter 3 — Plant Kingdom
NCERT Class 11 Biology: Chapter 4 — Animal Kingdom
NCERT Class 11 Biology: Chapter 5 — Morphology of Flowering Plants
NCERT Class 11 Biology: Chapter 6 — Anatomy of Flowering Plants
NCERT Class 11 Biology: Chapter 7 — Structural Organisation in Animals
NCERT Class 11 Biology: Chapter 8 — Cell: The Unit of Life
NCERT Class 11 Biology: Chapter 9 — Biomolecules
NCERT Class 11 Biology: Chapter 10 — Cell Cycle and Cell Division
NCERT Class 11 Biology: Chapter 11 — Photosynthesis in Higher Plants
NCERT Class 11 Biology: Chapter 12 — Respiration in Plants
NCERT Class 11 Biology: Chapter 13 — Plant Growth and Development
NCERT Class 11 Biology: Chapter 14 — Breathing and Exchange of Gases
NCERT Class 11 Biology: Chapter 15 — Body Fluids and Circulation
NCERT Class 11 Biology: Chapter 16 — Excretory Products and their Elimination
NCERT Class 11 Biology: Chapter 17 — Locomotion and Movement
NCERT Class 11 Biology: Chapter 18 — Neural Control and Coordination
NCERT Class 11 Biology: Chapter 19 — Chemical Coordination and Integration