CBSE Class 11 Biology Notes

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. 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

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. Pituitary Gland
3. Pineal Gland  
4. Thyroid Gland
5. Parathyroid Gland
6. Thymus
7. Adrenal Gland
8. Pancreas
9. Testis
10. Ovary
11. Hormones of the Heart, Kidney, and Gastrointestinal Tract
12. 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.