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CBSE Class 11 Biology Notes

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CBSE Class 11 Biology Notes: CBSE Class 11 Biology Notes cover a wide range of important topics that provide students with a comprehensive understanding of living organisms, their structure, function, and behavior. These notes introduce fundamental concepts like the living world, biological classification, the structural organization in plants and animals, the cell, biomolecules, and physiology.

A thorough understanding of these concepts is crucial for students who wish to pursue higher studies in biology or related fields. The expertly crafted class 11 biology revision notes ensure that students have a clear understanding of the fundamental principles of biology. Moreover, these notes act as a quick reference guide for students, providing them with all the necessary diagrams and explanations that may come in the exams.

CBSE Notes for Class 11 Biology (Unit-Wise)

Unit I: Diversity In The Living World

Chapter 1: The Living World
Chapter 2: Biological Classification
Chapter 3: Plant Kingdom
Chapter 4: Animal Kingdom

Unit II: Structural Organisation In Plants And Animals

Chapter 5: Morphology of Flowering Plants
Chapter 6: Anatomy of Flowering Plants
Chapter 7: Structural Organisation in Animals

Unit III: Cell: Structure And Functions

Chapter 8: Cell: The Unit of Life
Chapter 9: Biomolecules
Chapter 10: Cell Cycle and Cell Division

Unit IV: Plant Physiology

Chapter 11: Photosynthesis in Higher Plants
Chapter 12: Respiration in Plants
Chapter 13: Plant Growth and Development

Unit V: Human Physiology

Chapter 14: Breathing and Exchange of Gases
Chapter 15: Body Fluids and Circulation
Chapter 16: Excretory Products and their Elimination
Chapter 17: Locomotion and Movement
Chapter 18: Neural Control and Coordination
Chapter 19: Chemical Coordination and Integration

Get chapter-wise notes for CBSE Class 11 Biology and ace your exams! Find comprehensive notes on The Living World, Biological Classification, Plant Kingdom, Animal Kingdom, Morphology of Flowering Plants, & more below.

Unit I: Diversity In The Living World

Chapter 1: The Living World

  1. Introduction of the living world 
  2. Diversity in the Living World
  3. Nomenclature for Living Organisms
  4. Taxonomic Categories of Hierarchy
  5. Genus and Family
  6. Class and Phylum
  7. Taxonomical Aid
  8. Herbarium
  9. Botanical Gardens

Chapter 2: Biological Classification

  1.  Introduction Of Biological Classification
  2. Kingdom Monera
  3. Archaebacteria
  4. Eubacteria
  5. Kingdom Protista
  6. Chrysophytes
  7. Dinoflagellates
  8. Euglenoid
  9. Slime Moulds
  10. Protozoans
  11. Kingdom Fungi
  12. Phycomycetes
  13. Ascomycetes
  14. Basidiomycetes
  15. Deuteromycetes
  16. Kingdom Plantae
  17. Kingdom Animalia
  18. Viruses, Viroids, Prions And Lichens

Chapter 3: Plant Kingdom

  1. What Is Plant Kingdom
  2. Algae
  3. Chlorophyceae
  4. Phaeophyceae
  5. Rhodophyceae
  6. Bryophytes
  7. Liverworts
  8. Mosses
  9. Pteridophytes
  10. Gymnosperms
  11. Angiosperms
  12. Difference between Angiosperm and Gymnosperms
  13. Plant Life Cycles and Alternation of Generations

Chapter 4: Animal Kingdom

  1. Introduction of Animal Kingdom
  2. Basis of Classification
  3. Levels of Organisation
  4. Symmetry
  5. Diploblastic And Triploblastic Organisation
  6. Classification of Animals
  7. Phylum – Porifera
  8. Phylum – Coelenterata (cnidaria)
  9. Phylum – Ctenophora
  10. Phylum – Platyhelminthes
  11. Phylum – Aschelminthes
  12. Phylum – Annelida
  13. Phylum – Arthropoda
  14. Phylum – Mollusca
  15. Phylum – Echinodermata
  16. Phylum – Hemichordata
  17. Phylum – Chordata

Unit II: Structural Organisation In Plants And Animals

Chapter 5: Morphology of Flowering Plants

  1. Introduction of Morphology of Flowering Plants
  2. Root
  3. Stem
  4. The Leaf
  5. Inflorescence
  6. Flower
  7. Parts of a flower
  8. Androecium
  9. Gynoecium
  10. Fruit
  11. Structure of a Dicotyledonous Seed
  12. Structure of a monocotyledonous Seed
  13. Semi-technical Description of a typical Flowering Plant
  14. Fabaceae
  15. Solanaceae
  16. Liliaceae

Chapter 6: Anatomy of Flowering Plants

  1. Meristematic Tissues
  2. Permanent Tissues
  3. Complex Tissues
  4. Epidermal Tissue System
  5. Dicotyledonous Root and Monocotyledonous Root 
  6. Dicotyledonous Stem and Monocotyledonous Stem
  7. Dorsiventral (Dicotyledonous) Leaf
  8. Isobilateral (Monocotyledonous) Leaf
  9. Secondary Growth and Secondary Growth in Roots
  10. Cork Cambium

Chapter 7: Structural Organization In Animals

  1. Structural Organisation In Animal
  2. Epithelial Tissue
  3. Connective Tissue
  4. Muscle Tissue
  5. Neural Tissue
  6. Organ And Organ System
  7. Earthworm Morphology
  8. Earthworm Anatomy
  9. Cockroach Morphology
  10. Cockroach Anatomy
  11. Frogs Morphology and Anatomy

Unit III: Cell: Structure And Functions

Chapter 8: Cell-The Unit of Life

  1. Prokaryotic Cells
  2. Cell Envelope And Its Modifications
  3. Ribosomes And Inclusion Bodies
  4. Eukaryotic Cells
  5. Cell Membrane
  6. Endomembrane System
  7. Mitochondria
  8. Golgi Apparatus
  9. Plastids
  10. Ribosomes
  11. Cytoskeleton
  12. Cilia and Flagella
  13. Nucleus

Chapter 9: Biomolecules

  1. Introduction Of Biomolecules
  2. How To Analyze Chemical Composition?
  3. Primary And Secondary Metabolites
  4. Biomacromolecules
  5. Proteins
  6. Polysaccharides
  7. Nucleic Acids
  8. Structure of Proteins
  9. Dynamic State of Body Constituents – Concept of Metabolism
  10. Metabolic Basis For Living
  11. The Living State 
  12. Enzymes
  13. How Do Enzymes Bring About Such High Rates Of Chemical Conversions?
  14. Nature Of Enzyme Action
  15. Mechanism of Enzyme Action
  16. Factors Affecting Enzyme Activity
  17. Co-factors

Chapter 10: Cell Cycle and Cell Division

  1. Introduction Of Cell Cycle And Cell Division
  2. M Phase
  3. Significance Of Mitosis
  4. Meiosis and Different Phases

Unit IV: Plant Physiology

Chapter 11: Photosynthesis in Higher Plants

  1. Where Does Photosynthesis Take Place?
  2. How Many Types Of Pigments Are Involved In Photosynthesis?
  3. What Is Light Reaction?
  4. The Electron Transport
  5. Cyclic And Non-cyclic Photo-phosphorylation
  6. Chemiosmotic Hypothesis
  7. Where are the ATP And NADPH used?
  8. Calvin Cycle
  9. C4 Pathway
  10. Photorespiration
  11. Factors affecting Photosynthesis

Chapter 12: Respiration in Plants

  1. Introduction Of Respiration In Plants
  2. Do Plants Breathe?
  3. Glycolysis
  4. Fermentation
  5. Aerobic Respiration
  6. Tricarboxylic Acid Cycle
  7. Electron Transport System (ETS) and Oxidative Phosphorylation
  8. The Respiratory Balance Sheet
  9. Amphibolic Pathway
  10. Respiratory Quotient

Chapter 13: Plant-Growth and Development

  1. Introduction Of Plant Growth and Development
  2. Growth Rates
  3. Differentiation, Dedifferentiation, and Redifferentiation
  4. Development
  5. Plant Growth Regulators
  6. Physiological Effects of Plant Growth Regulators
  7. Photoperiodism
  8. Vernalization
  9. Seed Dormancy

Unit V: Human Physiology

Chapter 14: Breathing and Exchange of Gases

  1. Respiratory Organs
  2. Mechanism of Breathing
  3. Respiratory Volumes and Capacities
  4. Exchange of Gases
  5. Transport of Oxygen
  6. Transport of Carbon Dioxide
  7. Regulation of Respiration
  8. Disorders of the Respiratory System

Chapter 15: Body Fluids and Circulation

  1. Introduction Of Body Fluids And Circulation
  2. Plasma and Formed Elements
  3. Blood and Blood Group
  4. Coagulation of Blood
  5. Lymph (Tissue Fluid)
  6. Circulatory Pathways
  7. Human Circulatory System
  8. Cardiac Cycle
  9. Electrocardiograph (ECG)
  10. Double Circulation
  11. Regulation of Cardiac Activity
  12. Disorders of the Circulatory System

Chapter 16: Excretory Products and their Elimination

  1. Introduction Excretory Products and their Elimination
  2. Human Excretory System
  3. Urine Formation
  4. The function of The Tubules
  5. Mechanism Of Concentration Of The Filtrate
  6. Regulation Of Kidney Function
  7. Micturition
  8. Role of Other Organs in Excretion
  9. Disorders of The Excretory System

Chapter 17: Locomotion and Movement

  1. Locomotion and Movement
  2. Muscle
  3. Structure of Contractile Proteins
  4. Mechanism of Muscle Contraction
  5. Skeletal System
  6. Joints
  7. Disorders of the Muscular and Skeletal System

Chapter 18: Neural Control and Coordination  

  1. Human Neural System
  2. Neurons as Structural and Functional Unit of Neural System
  3. Generation and Conduction of Nerve Impulse
  4. Transmission of Impulses
  5. Central Neural System
  6. Reflex Action And Reflex Arc
  7. Sensory Reception And Processing
  8. Human Eye
  9. Human Ear

Chapter 19: Chemical Coordination and Integration

  1. Endocrine Glands And Hormones
  2. Hypothalamus
  3. Pituitary Gland
  4. Pineal Gland  
  5. Thyroid Gland
  6. Parathyroid Gland
  7. Thymus
  8. Adrenal Gland
  9. Pancreas
  10. Testis
  11. Ovary
  12. Hormones of the Heart, Kidney, and Gastrointestinal Tract
  13. Mechanism of Hormone Action

Conclusion

CBSE Class 11 Biology Notes cover a wide range of topics, from the basic principles of life to the complex workings of living organisms. The expertly crafted revision notes provide students with a comprehensive understanding of the subject, ensuring that they are well-prepared for their exams and future academic pursuits.

FAQs on CBSE Class 11 Biology Notes

Q: What are the chapters covered in CBSE Class 11 Biology Notes?

Answer: CBSE Class 11 Biology Notes cover a variety of essential chapters, including the 
The Living World, Biological Classification, Plant Kingdom, Animal Kingdom, Morphology of Flowering Plants, Anatomy of Flowering Plants, Structural Organisation in Animals and more.

Q: How are CBSE Class 11 Biology Notes helpful in exam preparation?

Answer: CBSE Class 11 Biology Notes are designed by experts, keeping in mind the latest CBSE syllabus. These notes provide students with a clear understanding of the fundamental principles of biology and include all the necessary diagrams and explanations that may come in the exam. This makes the revision process more efficient and effective, allowing students to revise the entire syllabus in a short time.

Q: Can CBSE Class 11 Biology Notes help in competitive exams like NEET and AIIMS?


Answer: Yes, CBSE Class 11 Biology Notes can help students in various competitive exams, including NEET and AIIMS. A thorough understanding of the fundamental concepts covered in these notes is crucial for success in these exams.

Q: How can students use CBSE Class 11 Biology Notes effectively?

Answer: Students can use CBSE Class 11 Biology Notes effectively by studying them regularly, revising the concepts covered in the notes, and practicing questions based on the topics covered. They can also use these notes as a quick reference guide before exams.



Last Updated : 14 Jan, 2024
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