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Three chapters from the previous Class 11 Biology Syllabus have been removed to reduce the extra topics and focus on the main concepts.
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Certain topics within chapters have been updated or reorganised for better clarity and understanding.
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Focus has been laid on practical and application-based learning, allowing students to connect theoretical concepts with experiments.
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Some diagrams and examples have been updated to match scientific knowledge and make it easier for students to understand.
NCERT Syllabus for Class 11 Biology 2025-26 - Download All Subject PDF
The NCERT Syllabus for Class 11 Biology 2025-26 covers all the important life processes and related concepts in detail. It helps students understand plants, animals, and the human body, as well as how they perform different functions. All the topics are discussed in a well-structured and organised way, which helps students prepare for school exams as well as competitive exams like NEET. The NCERT syllabus also builds a strong foundation for advanced concepts covered in Class 12 and higher studies.
NCERT Syllabus for Class 11 Biology PDF
This Story also Contains
- NCERT Syllabus for Class 11 Biology 2025-26 (Theory)
- NCERT Syllabus for Class 11 Biology 2025-26 (Practical Examination)
- How to Download the NCERT Syllabus for Class 11 Biology 2025-26?
- What's New in the Class 11 NCERT Biology Syllabus?
- Benefits of Knowing the NCERT Biology Class 11 syllabus
- Chapter-wise NCERT Solutions for Class 11 Biology
- NCERT Syllabus Class 11 Biology Reference Books
The NCERT Biology Class 11 Syllabus is divided into 5 units and 19 chapters. It covers units like diversity in the living world, structural organisation in plants and animals, cell structure, and human physiology. Each unit is explained in a straightforward way to help students understand how living things work. Students can download the syllabus from the Careers360 platform, as having the updated NCERT Syllabus for Class 11 helps them plan their preparation in the right direction.
NCERT Syllabus for Class 11 Biology 2025-26 (Theory)
The syllabus is divided into five units comprising a total of 19 chapters, which students must study throughout the session. Studying through the NCERT Syllabus for Class 11 Biology PDF enables students to explore a range of topics. The section below provides a unit-wise breakdown, along with the chapters and important issues.
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Units |
Chapter Number |
Chapter Name |
Topic Name |
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Unit 1: Diversity in the Living World |
Chapter 1 |
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Chapter 2 |
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Chapter 3 |
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Chapter 4 |
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Unit 2: Structural Organisation in Plants and Animals |
Chapter 5 |
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Chapter 6 |
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Chapter 7 |
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Unit 3: Cell: Structure and Function |
Chapter 8 |
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Chapter 9 |
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Chapter 10 |
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Unit 4: Plant Physiology |
Chapter 11 |
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Chapter 12 |
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Chapter 13 |
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Unit 5: Human Physiology |
Chapter 14 |
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Chapter 15 |
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Chapter 16 |
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Chapter 17 |
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Chapter 18 |
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Chapter 19 |
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NCERT Syllabus for Class 11 Biology 2025-26 (Practical Examination)
Practical examination helps students apply theoretical knowledge in practical experiments. Below is a table showing the detailed syllabus and marking scheme for the Biology practical examination as per the latest NCERT curriculum.
Practical Evaluation Scheme
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Particular |
Marks assigned |
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One Major Experiment Part A (Experiment No 1,3,7,8) |
5 |
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One Minor Experiment Part A (Experiment No 6,9,10,11,12,13) |
4 |
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Slide Preparation Part A (Experiment No. 2,4,5) |
5 |
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Spotting Part B |
7 |
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Practical Record + Viva Voce |
4 |
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Project Record + Viva Voce |
5 |
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Total |
30 |
Class 11 NCERT Biology Syllabus - List of Experiments
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Study and description of three locally available common flowering plants, one from each of the families Solanaceae, Fabaceae, and Liliaceae (Poaceae, Asteraceae, or Brassicaceae can be substituted in case of a particular geographical location), including dissection and display of floral whorls, anthers, and ovary to show the number of chambers (floral formulae and floral diagrams). Types of root (Tap and adventitious), stem (herbaceous and woody), leaf (arrangement, shape, venation, simple and compound).
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Preparation and study of T.S. of dicot and monocot roots and stems (primary).
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Study of osmosis by a potato osmometer.
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Study of plasmolysis in epidermal peels (e.g., Rhoeo leaves).
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Study of the distribution of stomata on the upper and lower surfaces of leaves.
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Comparative study of the rates of transpiration in the upper and lower surfaces of leaves.
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Test for the presence of sugar, starch, proteins, and fats. Detection in suitable plant and animal materials.
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Separation of plant pigments through paper chromatography.
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Study of the rate of respiration in flower buds/leaf tissue and germinating seeds.
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Test for the presence of urea in urine.
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Test for the presence of sugar in urine.
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Test for the presence of albumin in urine.
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Test for the presence of bile salts in urine.
Also read,
How to Download the NCERT Syllabus for Class 11 Biology 2025-26?
Students can follow the steps given below to download the syllabus. This helps them to stay organised and focused throughout the year.
Step 1: Go to the official NCERT website at http://ncert.nic.in.
Step 2: On the home page, in the 'Search' option, type 'Syllabus' and click on it. This will take you to the syllabus page.
Step 3: Click on the 'Syllabus for Secondary and Higher Secondary Classes' option. The syllabus PDF will open.
Step 4: You will get all the links for different subjects from the list in the PDF.
Note: The Class 11 Biology Syllabus is not updated on the NCERT official website. Students can download the latest syllabus from this page, which is given below.
What's New in the Class 11 NCERT Biology Syllabus?
In the latest syllabus, several changes have been made to match the content and make it more focused for students. Given below are the changes made in the curriculum:
Benefits of Knowing the NCERT Biology Class 11 syllabus
Studying Biology helps students understand how living things work in the real world. It gives a clear idea about the basics and important terms. Knowing the Class 11 NCERT Biology syllabus provides benefits for daily revision as well as for exams.
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Reviewing the NCERT Syllabus for Class 11 Biology PDF helps students create a proper study plan.
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Students can track which chapters are completed and which require more time through the syllabus.
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Once students complete the syllabus, they gain a strong understanding of all the topics, which boosts their confidence.
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Knowing the syllabus helps students build a strong foundation for Class 12 and competitive exams, such as NEET, making learning easier and effective.
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By following the NCERT Biology Class 11 syllabus, students can focus on the topics that are important for the exam.
NCERT Class 11 Syllabus
Chapter-wise NCERT Solutions for Class 11 Biology
Understanding biology becomes easier when topics are explained clearly. Sometimes, students require assistance with challenging terms and concepts. For this purpose, they can use NCERT Solutions for Class 11. All the solutions are prepared by subject experts along with well-labelled diagrams. Given below are the links to the chapter-wise solutions.
NCERT Syllabus Class 11 Biology Reference Books
The NCERT syllabus is covered in the “Biology Class-XI, book, which has 19 chapters. These chapters are divided into 5 units. Apart from the NCERT books for Class 11, students should also read other reference books. This helps them to understand all the chapters easily. Below is the list of books that students can refer to for understanding the NCERT Biology Class 11 syllabus.
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Trueman’s Biology (Volume 1 & 2) – By K.N. Bhatia and M.P. Tyagi
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Pradeep’s A Textbook of Biology – By P.S. Dhami
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Dinesh Objective Biology – By Ashish Sarabhai
- Arihant All-in-One Biology Class 11
Frequently Asked Questions (FAQs)
Q: What are the main units covered in Class 11 Biology NCERT syllabus?
A:
The NCERT Syllabus for Class 11 Biology 2025-26 is divided into five units:
Diversity of Living Organisms
Structural Organisation in Animals and Plants
Cell Structure and Function
Plant Physiology
Human Physiology
Q: How many chapters are there in the NCERT Class 11 Biology textbook?
A:
There are a total of 19 chapters, which are included in the NCERT Biology Class 11 Syllabus, organized into 5 units.
Q: Does the Class 11 Biology syllabus include practical experiments?
A:
Yes, the NCERT syllabus for class 11 Biology includes practical experiments as part of the curriculum. These practicals help students understand biological concepts such as:
- Studying plant and animal specimens
- Using microscopes to observe cells and tissues
- Performing experiments related to osmosis, plasmolysis, and food tests
- Preparing temporary slides
- Recording and analyzing data
Q: What topics are covered under the unit “Diversity of the Living Organisms”?
A:
The unit “Diversity of Living Organisms” in Class 11 Biology covers the following main topics:
- Introduction to the characteristics of living organisms
- The concept and importance of taxonomy and classification
- The five-kingdom classification system
- Major groups and features of the Plant Kingdom
- Major groups and features of the Animal Kingdom
Q: Which chapters are removed from NCERT Biology class 11?
A:
In the NCERT Class 11 Biology syllabus, the chapters Transport in Plants and Mineral Nutrition have been removed. These were part of the Plant Physiology unit.
Q: What is the hardest chapter in class 11 biology?
A:
The hardest chapters in Class 11 Biology come from Plant Physiology and Human Physiology. Topics like Photosynthesis in Higher Plants and Breathing and Exchange of Gases are considered difficult due to their complex processes and detailed mechanisms.
Q: Is class 11 Biology tough?
A:
Students might find Class 11 NCERT Biology Syllabus tough at first because the syllabus is detailed and the concepts are new. It needs regular study, understanding of processes, and practice of diagrams. With the help of NCERT books and revision, it becomes easier over time.
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