NCERT Syllabus for Class 11 Biology 2025-26 - Download All Subject PDF

The NCERT Biology syllabus for Class 11 explains different processes of life. It helps students understand plants, animals, and the human body, and how they perform different functions. This syllabus discusses all basic concepts in a well-structured and organised way. It prepares the students for school exams and entrance exams like NEET. It builds a strong base in Biology and keeps students interested. NCERT books explain all the topics included in the syllabus in a clear and student-friendly manner.

This Story also Contains

1. NCERT Syllabus for Class 11 Biology 2025-26 (Theory)
2. CBSE Class 11 Biology Syllabus Prescribed Books
3. NCERT Syllabus for Class 11 Biology 2025-26 (Practical Examination)
4. Why is NCERT Class 11 Biology Important?

Class 11 Biology Syllabus 2025-26 is divided into 5 units. This syllabus is followed by the CBSE Board and other national education boards. It covers units like diversity in the living world, structural organisation in plants and animals, cell structure, plants, and human physiology. Each chapter has simple explanations, well-labeled diagrams, and real-life examples. At the end of every chapter, practice questions are given to make learning more effective. The NCERT syllabus is a valuable resource for students to score well in their exams.

NCERT Syllabus for Class 11 Biology 2025-26 (Theory)

The syllabus is divided into five units and a total of 19 chapters. The section below provides a unit-wise breakdown of the theory part, which highlights all the chapters students have to study throughout the session.

Unit 1: Diversity in the Living World

Chapter 1: The Living World

• What is living?

• Biodiversity

• Taxonomy and systematics

• Concept of species

• Taxonomical hierarchy

• Tools for the study of taxonomy (museums, zoological parks, herbaria, botanical gardens, keys)

Chapter 2: Biological Classification

• Five-kingdom classification

• Salient features of Monera, Protista, and Fungi

• Lichens, Viruses, Viroids

Chapter 3: Plant Kingdom

• Classification of plants

• Algae, Bryophyta, Pteridophyta, Gymnosperms, Angiosperms

• Salient features and examples

Chapter 4: Animal Kingdom

• Classification of animals

• Non-chordates up to the phylum level

• Chordates up to the class level

• Salient features and examples

Unit 2: Structural Organisation in Plants and Animals

Chapter 5: Morphology of Flowering Plants

• Root, stem, leaf, inflorescence, flower, fruit, seed morphology

• Family Solanaceae description

Chapter 6: Anatomy of Flowering Plants

• Tissue systems in dicots and monocots

• Anatomy and functions

Chapter 7: Structural Organisation in Animals

• Morphology and anatomy of the digestive, circulatory, respiratory, nervous, and reproductive systems of the frog

Unit 3: Cell: Structure and Function

Chapter 8: Cell: The Unit of Life

• Cell theory

• Prokaryotic and eukaryotic cells

• Cell organelles and their functions

• Ultrastructure of organelles

Chapter 9: Biomolecules

• Chemical constituents of cells

• Structure and function of proteins, carbohydrates, lipids, and nucleic acids

• Enzymes and action

Chapter 10: Cell Cycle and Cell Division

• Cell cycle phases

• Mitosis and meiosis

• Significance of cell division

Unit 4: Plant Physiology

Chapter 11: Photosynthesis in Higher Plants

• Photosynthesis process

• Light and dark reactions

• Factors affecting photosynthesis

Chapter 12: Respiration in Plants

• Aerobic and anaerobic respiration

• Glycolysis, Krebs cycle, electron transport chain

Chapter 13: Plant Growth and Development

• Growth phases

• Plant hormones and their functions

• Seed dormancy and germination

Unit 5: Human Physiology

Chapter 14: Breathing and Exchange of Gases

• Human respiratory system

• Mechanism of breathing

• Transport of gases

Chapter 15: Body Fluids and Circulation

• Blood composition and functions

• Circulatory system in humans and frogs

Chapter 16: Excretory Products and their Elimination

• Human excretory system

• Urine formation

• Osmoregulation

Chapter 17: Locomotion and Movement

• Human skeletal system and muscular system

• Types of muscles

• Movement mechanism

Chapter 18: Neural Control and Coordination

• Nervous system

• Neuron structure and function

• Reflex action

Chapter 19: Chemical Coordination and Integration

• Endocrine glands and hormones

• Functions and disorders

Download: NCERT Syllabus for Class 11 Biology PDF

CBSE Class 11 Biology Syllabus Prescribed Books

CBSE prescribes the NCERT Books for every subject. CBSE prescribed the “Biology Class-XI, Published by NCERT” book to cover the 11th class Biology syllabus. Apart from this, Candidates should also read other reference books to gain additional information, which is listed below:

• Trueman’s Biology (Volume 1 & 2) – By K.N. Bhatia and M.P. Tyagi

• Pradeep’s A Textbook of Biology – By P.S. Dhami

• Dinesh Objective Biology – By Ashish Sarabhai

• Biology by Arihant Experts

NCERT Syllabus for Class 11 Biology 2025-26 (Practical Examination)

CBSE also conducts a practical examination of 30 marks for 3 hours. NCERT has given the syllabus for practical exams, which are explained below. These practicals help students apply theoretical knowledge through hands-on activities and experiments.

Practical Evaluation Scheme

CBSE Class 11th Biology -List of Experiments

Also read,

• NCERT Solutions for Class 11 Biology
• NCERT Exemplar Class 11 Biology

Why is NCERT Class 11 Biology Important?

Studying Biology in Class 11 helps students understand how living things work in the real world. It gives a clear idea about the basics and important terms. It is useful not just for exams but also for future studies in the science field.

1. It makes Class 12 Biology easier to understand and gives a strong base for competitive tests like NEET.

2. Students learn how body systems like digestion, breathing, and reproduction actually work.

3. The subject has simple explanations and diagrams, which make it easier to study and remember.

4. With regular revision, students can easily score good marks without any further help.

5. It builds interest and curiosity in students, allowing them to enjoy the subject without getting bored.

NCERT Class 11 Syllabus

• NCERT Syllabus for Class 11 Hindi
• NCERT Syllabus for Class 11 Chemistry
• NCERT Syllabus for Class 11 Maths
• NCERT Syllabus for Class 11 Physics
• NCERT Syllabus for Class 11 English