Study Notes
Class 11 & 12 Notes — written for boards and entrance exams, chapter by chapter.
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.
Latest chapters
206 notes
Showing 97–120 of 206. Free to read and download — updated with new chapters every few weeks.
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.
Probability Class 12 Notes
Class 12 Maths Probability notes: conditional probability, the multiplication theorem, Bayes' theorem, random variables and their distributions, and Bernoulli trials — with key formulas for CBSE and JEE.
Linear Programming Class 12 Notes
Class 12 Maths Linear Programming notes: objective functions, constraints, feasible regions and the corner point method to maximise or minimise an LPP — with solved examples for CBSE and JEE.
Three Dimensional Geometry Class 12 Notes
Class 12 Maths Three Dimensional Geometry notes: direction cosines and ratios, equations of lines and planes, distances and angles between them — with key formulas and solved examples for CBSE and JEE.
Vector Algebra Class 12 Notes
Class 12 Maths Vector Algebra notes: position vectors, dot and cross products, projection and their geometric meaning — with key formulas and solved examples for CBSE and JEE.
Differential Equations Class 12 Notes
Class 12 Maths Differential Equations notes: order and degree, variable-separable equations, homogeneous equations, and first-order linear differential equations with integrating factor — with key formulas for CBSE and JEE.
Application of Integrals Class 12 Notes
Class 12 Maths Application of Integrals notes: area under a curve, area between two curves and bounded regions using definite integrals — with worked examples for CBSE and JEE.
Integrals Class 12 Notes
Class 12 Maths Integrals notes: indefinite and definite integrals, substitution, integration by parts, partial fractions and the fundamental theorem of calculus — with key formulas for CBSE and JEE.
Application of Derivatives Class 12 Notes
Class 12 Maths Application of Derivatives notes: rate of change, increasing and decreasing functions, tangents and normals, and maxima and minima with the first and second derivative tests for CBSE and JEE.
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