Class 11 Biology Textbook – Hayatiyaat NCERT
The NCERT Class 11 Biology Book (Hayatiyaat) is an essential study resource for CBSE students and NEET aspirants. It provides simple explanations, detailed diagrams, and exercises that make complex biology concepts easier to understand. Below you can find chapter-wise PDF download links along with summaries for quick revision and exam preparation.
Preface Section
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The preface explains the objectives of the Biology curriculum and how the book is designed to encourage curiosity, critical thinking, and scientific temperament among students.
Chapter 1: The Living World
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This chapter introduces life, its defining features, and the importance of classification. It also explains taxonomic categories and tools that biologists use to study biodiversity.
Chapter 2: Biological Classification
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This chapter discusses the five-kingdom classification of organisms, detailing Monera, Protista, Fungi, Plantae, and Animalia, along with their unique characteristics.
Chapter 3: Plant Kingdom
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Here, students learn about the classification of plants into algae, bryophytes, pteridophytes, gymnosperms, and angiosperms, along with their life cycles and economic importance.
Chapter 4: Animal Kingdom
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This chapter explains the classification of animals from simple to complex organisms, based on body plan, symmetry, coelom, and body organization.
Chapter 5: Morphology of Flowering Plants
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This chapter covers the external structure of flowering plants, including roots, stems, leaves, inflorescence, flowers, fruits, and seeds, along with examples of modifications.
Chapter 6: Anatomy of Flowering Plants
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Focuses on the internal structure of plants, plant tissues (meristematic and permanent), and secondary growth in dicot plants.
Chapter 7: Structural Organisation in Animals
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This chapter covers animal tissues, morphology, and anatomy of cockroach, earthworm, and frog, highlighting organ systems in animals.
Chapter 8: Cell – The Unit of Life
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An introduction to cell theory, prokaryotic and eukaryotic cell structures, cell organelles, and their functions.
Chapter 9: Biomolecules
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Discusses macromolecules like carbohydrates, proteins, lipids, and nucleic acids, along with enzymes and their catalytic roles.
Chapter 10: Cell Cycle and Cell Division
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Covers the phases of the cell cycle, mitosis, meiosis, and their significance in growth, repair, and reproduction.
Chapter 11: Transport in Plants
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Explains plant transport systems including diffusion, osmosis, transpiration, and translocation of water and nutrients.
Chapter 12: Mineral Nutrition
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Focuses on essential minerals, their roles in plant growth, deficiency symptoms, and nitrogen fixation.
Chapter 13: Photosynthesis in Higher Plants
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Details photosynthetic processes including light reaction, Calvin cycle, photorespiration, and factors affecting photosynthesis.
Chapter 14: Respiration in Plants
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Covers glycolysis, Krebs cycle, electron transport chain, and energy release during plant respiration.
Chapter 15: Plant Growth and Development
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Explains plant hormones (auxins, gibberellins, cytokinins, ethylene, ABA), photoperiodism, and seed germination.
Chapter 16: Digestion and Absorption
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Human digestive system, role of enzymes, absorption of nutrients, and common digestive disorders are explained.
Chapter 17: Breathing and Exchange of Gases
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Focuses on the human respiratory system, gas exchange mechanisms, oxygen and carbon dioxide transport, and respiratory regulation.
Chapter 18: Body Fluids and Circulation
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Explains blood composition, heart structure, cardiac cycle, blood pressure, and circulation types.
Chapter 19: Excretory Products and Their Elimination
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Details excretory system in humans, urine formation, osmoregulation, and kidney disorders.
Chapter 20: Locomotion and Movement
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Covers skeletal system, joints, muscles, and their role in locomotion and body movements.
Chapter 21: Neural Control and Coordination
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Explains neurons, synapse, reflex action, central and peripheral nervous systems, and neural coordination.
Chapter 22: Chemical Coordination and Integration
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Focuses on endocrine glands, hormones, their functions, disorders, and integration with the nervous system.
Related Links
| Topic | Resource |
| Entire Book for Download (NCERT Official Link) | Download Hayatiyaat Book |
| More Books in this Subject | Biology Subject Books in Class 11 |
| All books for Class 11 | All Class 11 NCERT Books |