This page lists the Class 11 Biology chapters in the order NCERT prints them, with a one-line description of what each chapter covers. Find the topic you are revising, check the description, and open the notes page for that chapter.
The year opens with diversity and classification (The Living World, Biological Classification, Plant Kingdom and Animal Kingdom), moves into plant structure with Morphology of Flowering Plants and Anatomy of Flowering Plants, and passes through Structural Organisation in Animals before reaching cell biology, plant physiology and human physiology.
Class 11 Biology Chapters at a Glance
The table below lists the 19 chapters of Class 11 Biology in the order NCERT prints them. Each row pairs the chapter with what it actually covers, so you can confirm you have the right one before you open its notes.
| Ch | Chapter notes | Key topics covered |
|---|---|---|
| 1 | The Living World | Diversity In The Living World · Taxonomic Categories |
| 2 | Biological Classification | How Classification Systems Changed: Aristotle to Whittaker · Whittaker's Five Kingdoms at a Glance · Kingdom Monera: The Prokaryotic Kingdom |
| 3 | Plant Kingdom | Algae · Bryophytes · Pteridophytes |
| 4 | Animal Kingdom | Why classify animals? The seven features that decide the phylum · Levels of organisation: cellular to organ system · Symmetry and germ layers: sorting animals by body plan |
| 5 | Morphology of Flowering Plants | The Root · The Stem · The Leaf |
| 6 | Anatomy of Flowering Plants | The Tissue System · Anatomy of Dicotyledonous and Monocotyledonous Plants |
| 7 | Structural Organisation in Animals | Organ and Organ System · Frogs |
| 8 | Cell: The Unit of Life | What Is A Cell? · Cell Theory · An Overview Of Cell |
| 9 | Biomolecules | How To Analyse Chemical Composition? · Primary And Secondary Metabolites · Biomacromolecules |
| 10 | Cell Cycle and Cell Division | Cell Cycle · M Phase · Significance of Mitosis |
| 11 | Photosynthesis in Higher Plants | What do we Know? · Early Experiments · Where does Photosynthesis take place? |
| 12 | Respiration in Plants | Do Plants Breathe? · Glycolysis · Fermentation |
| 13 | Plant Growth and Development | Growth · Differentiation, Dedifferentiation and Redifferentiation · Development |
| 14 | Breathing and Exchange of Gases | Respiratory Organs Across Animals · Human Respiratory System: Pathway and Parts · Mechanism of Breathing: Inspiration and Expiration |
| 15 | Body Fluids and Circulation | Blood · Lymph (Tissue Fluid) · Circulatory Pathways |
| 16 | Excretory Products and Their Elimination | Excretion and Nitrogenous Wastes: Ammonia, Urea and Uric Acid · Human Excretory System: Organs and Their Jobs · Inside the Kidney: Cortex, Medulla and the Nephron |
| 17 | Locomotion and Movement | Types of Movement · Muscle · Skeletal System |
| 18 | Neural Control and Coordination | Neural System · Human Neural System · Neuron As Structural And Functional Unit Of Neural System |
| 19 | Chemical Coordination and Integration | Endocrine Glands and Hormones · Human Endocrine System · Hormones of Heart, Kidney and Gastrointestinal Tract |
How to Pick the Right Class 11 Biology Chapter
Use this routine when you need one chapter quickly:
- Scan the directory for the topic you are revising.
- Read that row’s one-line description; it names the NCERT sections, so you can confirm it matches the part of the book you need.
- Open the chapter notes page and use its in-page headings to jump to the exact subsection.
- Keep the Class 11 hub open as your home base while you move through the syllabus.
Choosing by title alone can misfire: Respiration in Plants (Chapter 12) covers plant glycolysis and fermentation, while Breathing and Exchange of Gases (Chapter 14) covers the human respiratory system. The two are easy to swap during revision, so check the chapter number before you open a page.
If you are starting the year from scratch, begin with The Living World and follow the NCERT order. You can verify the printed chapter structure against the official NCERT textbook portal.
What’s Inside the Chapter Notes
The notes pages reached from this page are revision pages built around the NCERT chapters. Across them you can expect:
- NCERT-ordered summaries that keep the chapter’s own structure.
- Key terms and definitions surfaced early, so revision starts with the right vocabulary.
- Table-based comparisons wherever a chapter compares groups — the five kingdoms, the 11 phyla, or tissue types.
- Worked examples with the reasoning shown, such as classifying an animal into its phylum or working with respiratory volumes.
- In-page headings that let you jump to the part you need.
Chapters that sort many groups lean on comparison tables; Biological Classification is a strong example, setting the five kingdoms and the acellular agents side by side.
Class 11 Biology: Questions Students Ask
How many chapters are in Class 11 Biology?
There are 19 chapters, in the NCERT order printed for CBSE.
Which chapters cover plant physiology in Class 11 Biology?
Chapters 11, 12 and 13: Photosynthesis in Higher Plants, Respiration in Plants, and Plant Growth and Development.
Which chapters cover human physiology in Class 11 Biology?
Chapters 14 to 19: Breathing and Exchange of Gases, Body Fluids and Circulation, Excretory Products and Their Elimination, Locomotion and Movement, Neural Control and Coordination, and Chemical Coordination and Integration.
What is the difference between Respiration in Plants and Breathing and Exchange of Gases?
Chapter 12 covers glycolysis and fermentation in plants. Chapter 14 covers the human respiratory system, gas exchange and gas transport.
Where do I start with the Class 11 Biology chapter list?
If you are building from scratch, start at Chapter 1 and follow the NCERT order. If you are revising one topic, use the directory description to jump straight to it.
Reference: NCERT textbooks (CBSE).