CBSE Class 11 Biology Syllabus 2026-27 has been released by the Central Board of Secondary Education (CBSE) for the academic session 2026-27. The syllabus for Biology (Subject Code 044) covers 19 chapters across five units. The theory examination carries 70 marks, while 30 marks are allotted to practical assessment, making a total of 100 marks.
Direct Link to CBSE Class 11 Biology Syllabus 2026-27
CBSE Class 11 Biology Syllabus 2026-27 - Overview
| Particulars | Details |
|---|---|
| Board Name | Central Board of Secondary Education (CBSE) |
| Class | 11 |
| Subject | Biology |
| Subject Code | 044 |
| Academic Session | 2026-27 |
| Syllabus Status | Released |
| Official Website | cbseacademic.nic.in |
How to Download CBSE Class 11 Biology Syllabus 2026-27 PDF?
Students can download the latest Class 11 Biology syllabus from the official CBSE Academic website.
- Visit cbseacademic.nic.in.
- Open the Curriculum 2026-27 section.
- Select Secondary Curriculum Part 2 (Classes XI-XII).
- Find Biology under Academic Electives.
- Open the Biology curriculum PDF.
- Check the Class XI course structure, theory chapters and practical syllabus.
- Download and save the PDF for academic preparation.
How to Prepare for CBSE Class 11 Biology Examination 2026-27?
Students can plan their Biology preparation using the official chapter list and marks distribution.
- Complete all 19 chapters prescribed in the Class XI theory syllabus.
- Give sufficient revision time to Human Physiology, which carries 18 marks.
- Study biological classification, cell structures and plant physiology using the prescribed NCERT textbook.
- Practise biological diagrams and explanations relevant to the syllabus.
- Review the topics specifically excluded from summative assessment.
- Keep the practical record and project work up to date.
- Prepare for experiments, slide identification, spotting and viva voce.
- Use the official CBSE syllabus PDF to check the scope of each chapter.
Important Instructions
- Marks split: Biology is assessed out of 100 marks, with 70 for theory and 30 for practical. The subject code is 044.
- Unit-wise weightage: Diversity of Living Organisms carries 15 marks, Structural Organisation 10, Cell: Structure and Function 15, Plant Physiology 12 and Human Physiology 18. Human Physiology is the heaviest unit.
- Practical (30 marks): This covers a major experiment (5), a minor experiment (4), slide preparation (5), spotting (7), practical record and viva (4) and project work (5). Keep your records and project file complete before the practical.
- Question types: The paper is described as roughly 20% MCQ or assertion-reason, 20% case-based or competency-based, and 60% short and long answer questions with compulsory diagrams. One source lists a section-wise pattern totalling 80 marks, which doesn’t match the 70-mark theory paper, so rely on your school’s sample paper.
- Dates and chapters: I found no official Class 11 Biology exam date, since your school conducts Class 11 exams. Some sources say the syllabus has 19 chapters while another says 22 chapters. Check the official CBSE syllabus PDF and your school’s notices for the final chapter list and date.