CBSE Class 11 Biology Syllabus 2025-26
Welcome to the CBSE Class 11 Biology syllabus page for the academic year 2025-26. We are delighted to assist both students and parents in navigating this crucial phase of academic growth. Here, you will find a well-structured overview of the Biology syllabus, designed to provide clarity and ease as you prepare for the year ahead. Our syllabus information is presented in three organized tables, each crafted to offer a comprehensive understanding of the topics and themes you will explore. The first table outlines the core concepts and units, the second details the practical and laboratory work, and the third provides insights into project work and assessments. We hope this layout supports your educational journey by making it easier to navigate and plan your studies effectively.
CBSE Class 11 Biology Syllabus Structure
CBSE Class 11 Biology Units and Topics
The Class 11 Biology syllabus prioritizes understanding the diversity and complex structures of living organisms, with significant emphasis on human physiology. To excel, focus on mastering the detailed mechanisms of both plant and human physiological processes. Key Topics: – Diversity of Living Organisms – Structural Organisation in Plants and Animals – Cell: Structure and Function – Plant Physiology – Human Physiology
| Evaluation Scheme | ||
|---|---|---|
| Theory | ||
| Units | Topics | Marks |
| I | Diversity of Living Organisms | 15 |
| II | Structural Organisation in Plants and Animals | 10 |
| III | Cell: Structure and Function | 15 |
| IV | Plant Physiology | 12 |
| V | Human Physiology | 18 |
| Total Theory | 70 | |
Class 11 Biology Marks Distribution
This CBSE Class 11 Biology syllabus emphasizes understanding the diversity, structure, and functioning of living organisms, focusing on both plant and human physiology. Students will explore the intricate systems that sustain life, gaining foundational knowledge crucial for advanced biological studies. Key Topics: – Diversity of Living Organisms: Classification and characteristics of living organisms. – Structural Organisation in Plants and Animals: Detailed study of morphology and anatomy. – Cell: Structure and Function: Cell biology, including cell cycle and biomolecules. – Plant Physiology: Processes like photosynthesis and plant development. – Human Physiology: Comprehensive look at systems such as respiration, circulation, and neural control.
| Units | Unit Names | Sections |
|---|---|---|
| I | Diversity of Living Organisms | The Living WorldBiological ClassificationPlant KingdomAnimal Kingdom |
| II | Structural Organisation in Plants and Animals | Morphology of Flowering PlantsAnatomy of Flowering PlantsStructural Organisation in Animals |
| III | Cell: Structure and Function | Cell: The Unit of LifeBiomoleculesCell Cycle and Cell Division |
| IV | Plant Physiology | Photosynthesis in Higher PlantsRespiration in PlantsPlant-Growth and Development |
| V | Human Physiology | Breathing and Exchange of GasesBody Fluids and CirculationExcretory Products and their EliminationLocomotion and MovementNeural Control and CoordinationChemical Coordination and Integration |
Biology Syllabus Details
The CBSE Class 11 Biology practical examination is worth 30 marks and is divided into major experiments, minor experiments, slide preparation, spotting, and oral assessments. Prioritize mastering the major and minor experiments and ensure your practical and project records are thorough for the viva voce. Key Experiment Topics: – Major Experiments: Focus on experiments 1, 3, 7, and 8. – Minor Experiments: Concentrate on experiments 6, 9, 10, 11, 12, and 13. – Slide Preparation: Practice experiments 2, 4, and 5. – Spotting: Gain proficiency in identifying specimens and structures.
| Evaluation Scheme | Marks |
|---|---|
| One Major Experiment Part A (Experiment No – 1, 3, 7, 8) | 5 |
| One Minor Experiment Part A (Experiment No – 6, 9, 10, 11, 12, 13) | 4 |
| Slide Preparation Part A (Experiment No – 2, 4, 5) | 5 |
| Spotting Part B | 7 |
| Practical Record + Viva Voce | 4 |
| Project Record + Viva Voce | 5 |
| Total | 30 |
❓ Frequently Asked Questions
Q1. What Is The marks distribution for CBSE Class 11 Biology?
The CBSE Class 11 Biology exam typically allocates 70 marks for the theory paper and 30 marks for practical assessments. The theory paper covers various units, each with a specific weightage, while the practicals assess your hands-on skills and understanding of experiments.
Q2. Which chapters are most important for scoring well in Class 11 Biology?
Chapters such as ‘Cell: The Unit of Life’, ‘Plant Physiology’, and ‘Human Physiology’ are crucial as they form the base for many topics in Class 12 as well. Understanding these thoroughly can help you score well and build a strong foundation for future studies.
Q3. What Is the exam pattern for the CBSE Class 11 Biology paper?
The exam consists of a theory paper with questions ranging from very short answer to long answer types. It includes multiple-choice questions, assertion-reasoning questions, and descriptive questions. The practical exam includes experiments, spotting, and viva voce, totaling 30 marks.
Q4. How can I effectively prepare for the Class 11 Biology exams?
Start by thoroughly reading the NCERT textbook, as it is the primary resource. Make concise notes, focus on diagrams, and practice previous years’ papers. Allocate specific time for revision and consider group studies to clarify doubts. Regularly conducting experiments will enhance your practical skills.
Q5. Are there any specific tips for handling the practical exams in Biology?
Familiarize yourself with all the experiments listed in the syllabus and practice them regularly. Understand the procedures and purpose of each experiment, as this will help during viva voce. Maintain a well-organized practical notebook, as it is assessed during the exams.
Q6. Is it necessary to refer to additional books apart from NCERT For Class 11 Biology?
While the NCERT textbook is comprehensive, referring to additional books like Trueman’s Elementary Biology can provide more practice questions and detailed explanations. However, focus primarily on NCERT, as the exam questions are mostly based on it, and use additional resources for deeper understanding.