Study Notes
Biology Class 11 Notes
Chapter-wise Class 11 and 12 physics, chemistry, maths and biology notes from Narayan Gurukul Academy, Mohali — real formulas rendered properly, exam pointers, and worked numericals for CBSE, JEE and NEET. All notes are free to read and download, no signup required. New chapters are added regularly.
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20 notes in Biology, Class 11
Showing 1–20 of 20. Free to read and download — updated with new chapters every few weeks.
Chemical Coordination and Integration Class 11 Notes
Chemical coordination and integration class 11 notes: endocrine glands, pituitary thyroid parathyroid adrenal and pancreatic hormones, hormone action, feedback control and disorders for CBSE and NEET.
Neural Control and Coordination Class 11 Notes
Neural control and coordination class 11 notes: neuron structure, synapse and neurotransmitters, receptors for taste, smell and vision, the brain regions, spinal cord and reflex arc for CBSE and NEET.
Locomotion and Movement Class 11 Notes
Locomotion and movement class 11 notes: human skeletal system, 206 bones, vertebral column, skull, fibrous and synovial joints, sliding filament theory, muscle types and disorders for CBSE and NEET.
Excretory Products and Their Elimination Class 11 Notes
Download free Excretory Products and Their Elimination Class 11 PDF notes with no signup required: nephron, GFR, countercurrent mechanism, ADH & RAAS, disorders for CBSE & NEET.
Body Fluids and Circulation Class 11 Notes
Body fluids and circulation class 11 notes: blood composition, blood groups, coagulation, the human heart, cardiac cycle, double circulation and disorders for CBSE and NEET.
Breathing and Exchange of Gases Class 11 Notes
Breathing and exchange of gases class 11 notes: human respiratory system, breathing mechanism, respiratory volumes, gas exchange and transport, regulation and disorders for CBSE and NEET.
Plant Growth and Development Class 11 Notes
Plant growth and development class 11 notes: growth phases, arithmetic and geometric growth, phytohormones, photoperiodism, vernalisation — with key formulas and solved examples for CBSE and NEET.
Respiration in Plants Class 11 Notes
Respiration in Plants Class 11 Notes covering glycolysis, Krebs cycle, electron transport, fermentation, and respiratory quotient — with key formulas and solved examples for CBSE and NEET.
Photosynthesis in Higher Plants Class 11 Notes
Photosynthesis in Higher Plants Class 11 Notes covering light and dark reactions, C3 and C4 pathways, photorespiration, and limiting factors — with key formulas and solved examples for CBSE and NEET.
Cell Cycle and Cell Division Class 11 Notes
Cell Cycle and Cell Division Class 11 Notes covering mitosis, meiosis, cell cycle phases, and genetic variation — with key formulas and solved examples for CBSE and NEET.
Biomolecules Class 11 Notes
Biomolecules Class 11 Notes covering proteins, carbohydrates, nucleic acids, lipids, enzymes, and metabolism — with key formulas and solved examples for CBSE and NEET.
Cell: The Unit of Life Class 11 Notes
Class 11 Biology Cell: The Unit of Life notes — cell theory, prokaryotic vs eukaryotic cells, cell envelope, organelles, nucleus and ribosomes with key formulas and solved examples for CBSE and NEET.
Structural Organisation in Animals Class 11 Notes
Structural organisation in animals class 11 notes: epithelial, connective, muscular and neural tissues, and the frog as a representative animal with its organ systems for CBSE and NEET.
Anatomy of Flowering Plants Class 11 Notes
Anatomy of flowering plants class 11 notes: meristematic and permanent tissues, tissue systems, dicot vs monocot root and stem anatomy, leaf anatomy and secondary growth for CBSE and NEET.
Morphology of Flowering Plants Class 11 Notes
Morphology of flowering plants class 11 notes: root, stem and leaf modifications, flower structure, placentation, fruit, seed and families for CBSE and NEET.
Animal Kingdom Class 11 Notes
Animal kingdom class 11 notes: basis of classification, symmetry, coelom, and the major phyla from Porifera to Chordata with characteristics and examples for CBSE and NEET.
Plant Kingdom Class 11 Notes
Plant Kingdom Class 11 Biology notes: classification of plants, alternation of generations, Bryophytes, Pteridophytes, Gymnosperms, Angiosperms — with key facts and solved examples for CBSE and NEET.
Biological Classification Class 11 Notes
Biological classification class 11 notes: five-kingdom classification, Monera, Protista, Fungi, Plantae, Animalia, viruses, viroids, prions and lichens for CBSE and NEET.
The Living World Class 11 Notes
The living world class 11 notes: characteristics of living organisms, diversity, taxonomy, taxonomical aids, binomial nomenclature and hierarchical classification for CBSE and NEET.
Class 11 Biology Notes — All Chapters, Free PDF & MCQs (2026)
Class 11 Biology notes, all chapters in NCERT order — free PDFs, no signup. Living world to plant physiology with diagrams, key points & exam-focused MCQs.
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