The CBSE Class 11 Biology Syllabus 2025-26 will provide students a deeper understanding of the life sciences which is essential for their education and scientific research. The course follows the "Jeev Vigyan" textbook and covers important topics such as diversity, cell structure and function, human physiology, plant physiology and biomolecules. CBSE Class 11 Biology Syllabus has been designed to improve students’ analytical thinking, observation skills and ideological clarity. The syllabus provides great emphasis on both theoretical knowledge and practical knowledge and also encourages students to observe biological systems through experiments, diagrams and case studies. Inclusion of local examples and thematically grouped units ensures students develop interests and understanding for biology and its applications in daily life. The CBSE syllabusClass 11 Biology provides a strong foundation for the students and prepares them for the board exams and also future competitive examinations in the field of medical and life sciences.
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Unit |
Lesson No. |
Chapter Title |
Marks |
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Unit 1: Diversity of Living Organisms |
1 |
The Living World |
15 |
|
2 |
Biological Classification |
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3 |
Plant Kingdom |
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4 |
Animal Kingdom |
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Unit 2: Structural Organisation in Animals and Plants |
5 |
Morphology of Flowering Plants |
10 |
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6 |
Anatomy of Flowering Plants |
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|
7 |
Structural Organisation in Animals |
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Unit 3: Cell Structure and Function |
8 |
Cell - The Unit of Life |
15 |
|
9 |
Biomolecules |
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10 |
Cell Cycle and Cell Division |
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Unit 4: Plant Physiology |
11 |
Transport in Plants |
12 |
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12 |
Mineral Nutrition |
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13 |
Photosynthesis in Higher Plants |
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14 |
Respiration in Plants |
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15 |
Plant Growth and Development |
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Unit 5: Human Physiology |
16 |
Digestion and Absorption |
18 |
|
17 |
Breathing and Exchange of Gases |
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18 |
Body Fluids and Circulation |
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19 |
Excretory Products and Their Elimination |
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20 |
Locomotion and Movement |
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21 |
Neural Control and Coordination |
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22 |
Chemical Coordination and Integration |
Disclaimer: The syllabus and academic information provided here are taken from official CBSE and NCERT sources. For any updates or confusion, please refer to the official CBSE or NCERT websites.
The curriculum includes biodiversity of organisms, structural organization, cell structure and functions in plants and animals, plant physiology and human physiology.
Yes, the 2025-26 syllabus is based on the recently reformed curriculum as per NEP 2020 and NCF 2023; which supports enquiry-based and practical learning.
The book is NCERT biology book for class 11, which is also used by all CBSE-Siddha schools.
Yes, students must complete practical experiments, slides preparation, observation and project work, which are necessary for the final internal assessment.
There are five major units, which are further divided into chapters focusing on structural, functional and physical aspects of living organisms.
The course enhances scientific observation, experimentation, analytical thinking and diagrammatic representation skills.
Yes, labeled diagrams are important and are often part of both theory and practical evaluation.
Absolutely. Class 11 set up a foundation for NEET, in which many main subjects appear in competitive medical examinations.
Students should focus on understanding NCERT concepts, practicing diagrams, revising regularly and solving the previous year's questions and sample papers.
The last two units, Plant Physiology and Human Physiology, generally carry more weight in the final exam compared to the first three units.
There's no one size-fits all answer. Consistency is key. However, aim for dedicated study sessions each day, allocating more time to challenging topics.
Educational websites and online platforms offering video lectures and animations.