Courses for Kids
Free study material
Offline Centres
Store Icon

CBSE Class 11 Biology Chapter Wise Revision Notes 2024-25

Last updated date: 17th Apr 2024
Total views: 674.7k
Views today: 8.74k

CBSE Class 11 Biology Revision Notes - Free PDF Download

Biology is an essential subject in the 11th standard if you want to pursue medical science. Some portions required proper understanding and knowledge. The class 11 biology revision notes will clarify the concepts of every student properly. It has been structured by expert faculties keeping the latest CBSE syllabus in mind. Whenever you are facing any problem, all you need to do is refer to these notes. The main advantage of revision notes of class 11 biology is that it has all the essential diagrams and explanations may come in the exam.

Detailed Overview of Class 11 Biology Revision Notes





Number of Chapters:


Content Type:

Text, Videos, Images and PDF Format

Academic Year:




Available Materials:

Chapter Wise

Other Materials

  • Important Questions

  • NCERT Solutions

1000+ Basic Subjective Questions can be added advantage to your Class 11 Biology Notes

Vedantu provides a comprehensive set of basic subjective questions for Class 11 Biology, with 1 mark and 2 marks subjective questions and answers. These questions are carefully curated by subject experts to ensure that they are relevant to the latest syllabus and exam patterns. They also cover a wide range of topics, so students can be sure to find questions that address their weak areas.

In addition to the questions, Vedantu also provides detailed answers, so students can learn how to answer them correctly. This helps students to understand the concepts behind the questions and to improve their problem-solving skills.

The basic subjective questions (1 mark & 2 mark) from Vedantu are a valuable resource for students who are preparing for their Class 11 Biology exams. They can help students to identify their weak areas, to improve their problem-solving skills, and to boost their confidence.

Subjective Questions benefits For Class 11 Biology:

  • Relevant to the latest syllabus and exam patterns: Vedantu's basic subjective questions and Class 11 Biology notes are designed to align with the latest syllabus and exam patterns, ensuring that students focus on the most relevant topics and formats that they are likely to encounter in their Class 11 Biology exams.

  • Coverage of topics: Class 11 Biology notes cover a wide range of topics, allowing students to thoroughly practice and understand various concepts within the subject. This basic subjective questions coverage helps in developing a strong foundation in the subject matter.

  • Detailed and easy to understand Answers: Vedantu provides detailed solutions, making it easier for students to grasp complex concepts and learn from their mistakes. 

  • Identification of Weak Areas: By referring to Vedantu's subjective questions and Class 11 notes, students can identify their weak areas and specific topics that require further attention and improvement.

  • Improvement in Problem-Solving Skills: Regularly practicing 1 mark & 2 Mark questions along with Revision notes helps students to develop critical thinking and analytical skills. .

  • Boosting Confidence: Subjective questions and Class 11 Biology notes, helps to grow the confidence in the subject and it positively impacts their academic performance in exams.

If you are a student who is preparing for your Class 11 Biology exams, I highly recommend using Vedantu's 1 mark and 2 mark subjective questions. They are a valuable resource that can help you to succeed in your exams.

Download CBSE Class 11 Biology Revision Notes 2024-25 PDF

Also, check CBSE Class 11 Biology revision notes for All chapters:

Competitive Exams after 12th Science

CBSE Revision Notes for Class 11 Biology - Free PDF Solutions

CBSE Class 11 Biology Weightage 2024-25 





Diversity of Living Organisms



Structural Organization in Plants and Animals



Cell: Structure and Function



Plant Physiology



Human Physiology





Benefits of Class 11 Biology Revision Notes

Biology can turn into a nightmare if not studied carefully. Hence, revision notes of biology class 11 are all there to help you. The class 11 biology revision notes are very easily accessible. You don’t need to buy any book or notes, all of it comes for free. All you need to do is download the biology class 11 notes pdf file and refer to them whenever you need it. It is compatible with any device. Once downloaded it can be accessed from anywhere in offline mode. Students can plan their self paced learning with the notes. In case you want, one can also print the entire PDF file and revise it during the exams. Class 11 Biology topics form a great foundation for class 12 Biology topics. Therefore, understanding the class 11 topic is very important. Here is where 11th biology notes can help.

  • One of the main benefits of the Class 11 Biology notes PDF download is that it helps students during the exams. They can follow the revision notes and save themselves the trouble of going through the entire biology textbook read the chapters. This ensures that they have a lot of time left for the revision of topics.

  • Biology notes for Class 1 pdf have been created by the experts at Vedantu who create well-researched and accurate content for the students. This means students can definitely rely on the authenticity and accuracy of the revision notes. By following these notes, they will be able to learn the chapters in much more detail.

  • All the processes, functions, and systems in the chapters have been explained in detail using different diagrams, tables, and examples for the students. This makes the process of learning a lot easier and more interesting for them.

  • The revision notes have been arranged in a systematic format to provide easy access to students who want specific notes to a particular chapter. For example, if you are looking for Class 11 Biology Chapter 1 Notes, you can find separate links for that chapter. Students can easily download the materials according to their preferences.

  • Apart from revision and concept building, the notes are also very helpful in the doubt clarification of students. They can follow the notes to figure out the topics where they need to focus more. They can clear any doubts that they have about a specific chapter as well. 

Download Reliable Revision Notes for Biology Class 11

If you are on the lookout for Quick Revision Notes for Biology Class 11, there is no better place than Vedantu. Download the Biology notes for Class 11 pdf and asses your knowledge about different topics and chapters from the biology syllabus. These helpful study resources can be a great way to enhance your knowledge and perform well during exams.

Class 11 Biology Revision Notes First Half Content

The class 11th biology notes can be divided into two parts. The first part starts with the living world, its mechanism, cells, and molecules. Next, you will study the biological classification based on some similarities. The next two chapters cover details of the plant and animal kingdom. It also has a difference between them. You have flowering plant morphology, anatomy, and epidonomy. The sections of a flowering plant are grown very intricately using diagrams. Next, we move into cell structure, cycle, and division. Another important chapter is biomolecules.

Class 11 Biology Revision Notes Second Half Content

The revision notes for class 11 biology have transportation in plants through phloem and xylem followed by nutritional elements and minerals required by plants. Further, we have a detailed explanation of photosynthesis and respiration in higher plants and complex organisms. Next, we have the growth and development of plants. Again you have a detailed study on digestion, absorption, and respiration of humans. Next, there is the circulation of fluids, excretion, locomotion, neural coordination, and nervous system. Further, the last chapter is about the human endocrine system, chemical integration, and coordination.

Importance of Revision Notes CBSE Class 11 Biology

Class 11 Biology is a crucial subject in the curriculum that teaches the students about plants, animals, and all sorts of life forms in the world. The syllabus of Class 11 Biology has a total of 22 chapters that are divided into 5 different units. These units relate to different topics such as Diversity, Structural Organization of Animals and Plants, Cell Structure and Function, and Human Psychology. Students will be able to delve deeper into the different concepts and topics related to biology in these chapters. So, in order to gain a proper understanding of all the units and the chapters enclosed in them, students will need revision notes CBSE Class 11 Biology.


It is extremely important for the students of Class 11 to complete their biology syllabus before their exams. After going through all the classes and preparing the right study materials, students can rely on the 11th Biology notes to get the right guidance and support during the examinations. These revision notes have been curated by some of the most experienced and learned subject matter experts at Vedantu. Students can access these study materials and start their practice early on to boost their chances of scoring high in the examinations.


The biology notes for class 11 are the best for you to brush up and revise the chapters again before the exam. It will help you to understand the topics which you need to practice better. Time management is also essential for any exam. One gets to know how to write in an answering script to fetch marks. The class 11th biology notes the best guide for any science student.

CBSE Class 11 Biology Study Materials

FAQs on CBSE Class 11 Biology Chapter Wise Revision Notes 2024-25

1. Why should you choose to refer to the Class 11 Biology notes?

Ans: Class 11 Biology notes are comprehensively laid out to let you choose the chapter you want to brush upon. These revision notes cover the important topics that are highly likely to be asked in the examination. These notes have been prepared by expert teachers who have been teaching this subject for many years and know how to correctly approach them. The students can download these notes and keep them on their phones or other devices to refer to just before the exam. Since the notes are neatly organized, they can choose the topics that they need to revise on at the last minute.

2. Are these notes enough for Class 11 Biology revision?

Ans: Biology is a subject that students can score well if they have a strong theoretical and conceptual hold on the subject. All the chapters are neatly segregated and the notes cover the entire subject in short. These are also important questions that the students should refer to before their exam as it lets them master the topic and score high in their exam. The notes are made creatively and are crafted keeping the students' understanding level in mind. These notes help not just in the school exams but in the competitive exams as well.

3. What are the chapters covered in CBSE Class 11 Biology Notes?

Ans: CBSE Notes for Class 11 Biology cover the following chapters:

  • 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

  • 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

4. Where can I find chapter-wise notes for Class 11 Biology?

Ans: CBSE Notes for Class 11 Biology are provided by Vedantu, available on the website as well as the mobile app. Students can find accurate, descriptive, and easily understandable notes that will assist their preparation in a better way. You can access these chapter-wise notes for all chapters of Class 11 Biology. Students can also download these notes free of cost for offline access whenever required.

5. Which book is best for Class 11 Biology?

Ans: Books published by the National Council of Educational Research and Training (NCERT) are considered as one of the best resources for students studying various classes. These books have been prescribed by CBSE for a long time since they strictly adhere to the latest syllabus and curriculum. Question papers are designed based on NCERT Books and hence, they are the best to prepare for Class 11 Biology. The books contain material that can be easily comprehended and enhance the overall learning experience for students.

6. How to top in Class 11 Biology?

Ans: Scoring high marks and topping in your Class 11 Biology may seem a difficult goal to achieve but it is not impossible. With the right tips and tricks, students can make their preparation stronger before their Biology exam. These simple tips include:

  • Thoroughly read each chapter.

  • Make notes out of everything.

  • Solve NCERT Questions, Sample papers, important questions.

  • Refer to NCERT Solutions of CBSE Class 11 Biology Revision Notes.

  • Practice diagrams regularly.

  • Revise every day before the exam.

7. Which are the Chapters in Class 11 Biology with the highest weightage?

Ans: While preparing for your Class 11 Biology, make sure that you are aware of the marks distribution so that you can prioritize preparing chapters accordingly. The following are the chapters in the Class 11 Biology syllabus with the highest marks weightage:

  • Unit–V  Human Physiology - 17 marks

  • Unit–I   Diversity of Living Organisms - 15 marks

  • Unit–III Cell: Structure and Function - 15 marks

  • Unit–IV Plant Physiology - 15 marks