CBSE New Revision Notes for Class 11 Biology 2025–26

Biology is one of the most important subjects for CBSE Class 11 Science students, especially for those preparing for medical and life science-related careers. The subject introduces students to the living world, plant and animal diversity, cell biology, and human physiology. To help students understand these concepts thoroughly, Studentbro.in provides CBSE Class 11 Biology New Revision Notes for the academic session 2025–26 in free PDF format.

These notes are designed to explain biological concepts in a simple, clear, and exam-oriented manner.

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Importance of Class 11 Biology Revision Notes

Class 11 Biology includes a vast syllabus with many new terminologies, diagrams, and processes. Without proper revision material, students often find it difficult to retain information.

Why Revision Notes Are Essential :

• Simplified explanation of biological processes

• Easy understanding of diagrams and terminology

• Quick revision before exams

• Better retention of concepts

• Strong foundation for Class 12 and NEET

Studentbro.in Biology notes are designed to reduce memorization pressure and improve conceptual clarity.

CBSE Class 11 Biology Syllabus 2025–26 (As Per NCERT)

The Biology revision notes available on Studentbro.in strictly follow the latest CBSE syllabus 2025–26 and are completely based on NCERT textbooks.

Units Covered in Biology :

• Diversity in Living World

• Structural Organisation in Animals and Plants

• Cell Structure and Function

• Plant Physiology

• Human Physiology

Detailed Chapter Coverage :

• The Living World

• Biological Classification

• Plant Kingdom

• Animal Kingdom

• Morphology of Flowering Plants

• Anatomy of Flowering Plants

• Structural Organisation in Animals

• Cell: The Unit of Life

• Biomolecules

• Cell Cycle and Cell Division

• Transport in Plants

• Mineral Nutrition

• Photosynthesis in Higher Plants

• Respiration in Plants

• Plant Growth and Development

• Digestion and Absorption

• Breathing and Exchange of Gases

• Body Fluids and Circulation

• Excretory Products and Their Elimination

• Locomotion and Movement

• Neural Control and Coordination

• Chemical Coordination and Integration

Each chapter includes key definitions, processes, diagrams (concept-based), and exam-relevant points.

Features of Studentbro.in Class 11 Biology Revision Notes

Studentbro.in focuses on conceptual clarity and exam relevance while preparing Biology notes.

Key Features :

• Prepared strictly as per CBSE and NCERT guidelines

• Chapter-wise structured notes

• Simple and easy-to-understand language

• Important definitions and keywords highlighted

• Process-based explanations

• Ideal for quick revision and exam preparation

• Useful for school exams and NEET foundation

These notes make Biology easier to understand and remember.

Chapter-Wise Biology Notes on Studentbro.in

Studentbro.in provides well-structured chapter-wise Biology notes to help students focus on one topic at a time.

Chapter-Wise Study Material :

• The Living World – Basic Concepts

• Biological Classification – Five Kingdom System

• Plant Kingdom – Algae, Bryophytes, Pteridophytes

• Animal Kingdom – Non-Chordates and Chordates

• Morphology of Flowering Plants – Root, Stem, Leaf

• Anatomy of Flowering Plants – Tissues and Structure

• Structural Organisation in Animals – Frog and Earthworm

• Cell: The Unit of Life – Cell Structure

• Biomolecules – Proteins, Carbohydrates, Lipids

• Cell Cycle and Cell Division – Mitosis and Meiosis

• Transport in Plants – Water and Mineral Movement

• Photosynthesis – Light and Dark Reactions

• Respiration in Plants – Glycolysis and Krebs Cycle

• Human Physiology – Digestive, Respiratory, Circulatory Systems

• Neural and Chemical Coordination – Hormones and Nerves

All chapters are available in free PDF format on Studentbro.in.

How These Biology Notes Help Students

For School Examinations :

• Covers theory-based and diagram-based questions

• Helpful for short and long answer questions

• Improves answer-writing skills

For Competitive Exams :

• Strong foundation for NEET preparation

• Concept clarity for objective questions

• Easy revision of important topics

These notes act as an effective learning and revision tool.

Difference Between NCERT Biology Book and Revision Notes

NCERT Biology Textbook :

• Detailed explanations

• Extensive reading required

• Time-consuming revision

Studentbro.in Revision Notes :

• Concise and exam-oriented

• Key points and definitions highlighted

• Easy to revise multiple chapters quickly

Using both together gives the best results.

Who Should Use These Biology Notes

Ideal For :

• CBSE Class 11 Science students

• NEET aspirants

• Students facing difficulty in memorization

• Teachers for quick revision support

These notes are helpful for beginners as well as advanced learners.

How to Download Class 11 Biology Notes PDF from Studentbro.in

Simple Download Process :

1. Visit Studentbro.in

2. Open the Class 11 section

3. Select Biology subject

4. Choose the required chapter

5. Download the free PDF

No sign-up or payment is required.

Why Studentbro.in Is Best for CBSE Biology Notes

Studentbro.in is a trusted educational website offering free and high-quality study material.

Advantages of Studentbro.in :

• Free and accessible learning resources

• Updated as per CBSE syllabus

• Easy-to-understand content

• Student-focused approach

• Regular academic updates

The platform aims to support students in achieving academic excellence.

Final Conclusion

CBSE Class 11 Biology New Revision Notes 2025–26 are an essential resource for students aiming to score well in school exams and build a strong foundation for NEET and other medical entrance exams. With well-organized content, clear explanations, and exam-focused preparation, Studentbro.in provides one of the best free Biology revision resources online.

Download the Class 11 Biology notes PDF today from Studentbro.in and make your Biology preparation stronger and more effective.