1. The Living World
Characteristics of living organisms, taxonomy, nomenclature, and taxonomic categories.
Download PDFClass 11 Biology Notes
Chapter-wise Biology revision support for CBSE and NCERT Class 11 students.
Class 11 Biology Study Material
Use these Class 11 Biology notes to revise definitions, classification, diagrams, processes, and NCERT-based questions. The subject list covers diversity in the living world, structural organisation, cell biology, plant physiology, and human physiology.
Class 11 Biology PDF Notes for CBSE and NCERT
These chapter-wise Class 11 Biology notes help students revise taxonomy, plant and animal kingdoms, cell structure, biomolecules, plant physiology, human physiology, and chemical coordination.
For effective Biology exam preparation, use the topic descriptions to find important diagrams, processes, definitions, and NCERT concepts, then practise labelled figures and short-answer questions.
Living World, Diversity and Cell Biology
2. Biological Classification
Five kingdom classification, Monera, Protista, Fungi, Plantae, and Animalia.
Download PDF3. Plant Kingdom
Algae, bryophytes, pteridophytes, gymnosperms, angiosperms, and life cycles.
Download PDF4. Animal Kingdom
Animal classification, body plans, symmetry, and major phyla characteristics.
Download PDF5. Morphology of Flowering Plants
Root, stem, leaf, inflorescence, flower, fruit, seed, and plant families.
Download PDF6. Anatomy of Flowering Plants
Plant tissues, internal structure, vascular bundles, and tissue systems.
Download PDF7. Structural Organisation in Animals
Animal tissues and the organisation of the earthworm, cockroach, and frog.
Download PDF8. Cell: The Unit of Life
Cell structure, organelles, membranes, prokaryotic cells, and eukaryotic cells.
Download PDF9. Biomolecules
Proteins, carbohydrates, lipids, nucleic acids, enzymes, and the chemistry of living cells.
Download PDF10. Cell Cycle and Cell Division
Cell cycle phases, mitosis, meiosis, chromosome behaviour, and biological significance.
Download PDFPlant Physiology and Human Physiology
11. Transport in Plants
Water movement, transpiration, mineral transport, and phloem translocation.
PDF coming soon12. Mineral Nutrition
Essential elements, deficiency symptoms, nitrogen cycle, and biological nitrogen fixation.
PDF coming soon13. Photosynthesis in Higher Plants
Light reactions, the Calvin cycle, pigments, and factors affecting photosynthesis.
Download PDF14. Respiration in Plants
Glycolysis, fermentation, the Krebs cycle, electron transport, and energy release.
Download PDF15. Plant Growth and Development
Growth phases, plant hormones, photoperiodism, and seed dormancy.
Download PDF16. Digestion and Absorption
Human digestion, digestive glands, nutrient absorption, and energy balance.
PDF coming soon17. Breathing and Exchange of Gases
Human respiration, gas exchange, respiratory pigments, and transport of gases.
Download PDF18. Body Fluids and Circulation
Blood, lymph, cardiac cycle, circulation pathways, and cardiovascular health.
Download PDF19. Excretory Products and Their Elimination
Kidney function, urine formation, osmoregulation, and excretion in humans.
Download PDF20. Locomotion and Movement
Muscles, skeletal movement, joints, muscle contraction, and common disorders.
Download PDF21. Neural Control and Coordination
Nervous system, nerve impulses, synapses, reflex action, and sense organs.
Download PDF22. Chemical Coordination and Integration
Endocrine glands, hormones, feedback control, and common hormonal disorders.
Download PDFImportant Class 11 Biology Revision Areas
For strong Biology preparation, read NCERT diagrams carefully, make labelled flowcharts for physiology, and revise classification tables regularly. These Class 11 Biology notes are intended to support textbook learning and help you organise important terms before school and entrance-exam practice.