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Class 11 Biology - NCERT Solutions 2024-25, Download PDF
Edited By Irshad Anwar | Updated on Jun 21, 2025 04:19 PM IST
NCERT Solutions for Class 11 Biology are highly beneficial because they can increase the marks of the students and improve their subject knowledge. Biology is one of the most important subjects in the 11th standard, as it deals with living organisms and their study. Preparing with a good study schedule and knowing the concepts in detail is the best method to perform well in board exams. The syllabus of Class 11 Biology has been revised according to the new CBSE guidelines. If you are also going to appear for the medical entrance exams, such as NEET, solving these NCERT Solutions will help you perform well in the exam.
Biology is the science of all the various forms of life present on Earth. Through practising the chapterwise solutions, you will become acquainted with the fundamentals of living things. The Biology syllabus of the 11th standard primarily deals with the structure and functions of the various parts of plants and human beings, covering topics such as structural organisation in plants and animals, plant physiology, and human physiology. NCERT Solutions for Class 11 chapter-wise solutions are provided in PDF, so you can download and access them offline.
Biology NCERT Solutions Class 11 Chapter-wise
Find the chapter-wise Class 11 Biology Solutions below:
The following chapters from the NCERT Class 11 Biology textbook have been deleted.
Transport in Plants
Mineral Nutrition
Digestion and Absorption
NCERT Solutions for Class 11 Biology: Chapter Details
The Class 11 Biology textbook has 19 chapters divided into 5 units that cover different topics like the variety of living things, how plants and animals are organised, cell structure, plant functions, and human body functions. To do well in exams, it’s important to understand these chapters clearly and practice the questions and answers for each one. Having solutions handy helps you learn better, clear your doubts, and prepare confidently for your CBSE Biology exam.
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Chapter 1: The Living World
Chapter 1 of class 11 Biology is the living world. This chapter mainly deals with the ideas of what living beings are and what the characteristics of living beings are. In this chapter, you will also get to learn about how taxonomic studies are carried out with the help of taxonomic aids. You will also learn the process of growth of the organism. At the end of the chapter, the NCERT exercise is given, which consists of a total of 10 questions.
Chapter 2: Biological Classification
Chapter 2 Biological classification compiles the information of various classification systems. It deals with the characteristics of the kingdoms Monera, Protista, and Fungi, and a short introduction to the kingdoms Plantae and Animalia. In this chapter, you will also study viruses. This chapter includes a total of 6 subtopics and 12 exercise questions.
Chapter 3: Plant Kingdom
This chapter deals with all the characteristics of members of the plant kingdom and the classification of plants. This chapter will give you brief details of algae, bryophytes, pteridophytes, gymnosperms and angiosperms. You will also study the life cycle of plants and the alternation of their generations. In this chapter, there is a total of six subtopics, based on which 12 questions are given at the end of the chapter. You must practice those questions while preparing for your exam.
Chapter 4: Animal Kingdom
This chapter deals with the classification of the animal kingdom into groups and sub-groups. This chapter will make you familiar with the peculiar features of each group of the animal kingdom. The chapter includes a total of 2 topics for which 15 questions have been asked for the understanding of the chapter. Since this chapter is mostly memory-based, try to learn it by making notes and practising. Solutions for the NCERT Biology Class 11 will be beneficial for understanding the concepts of this chapter.
Chapter 5: Morphology of Flowering Plants
Chapter 5 of Class 11 is on the morphology of flowering plants. This chapter compiles information regarding the external features of a plant. In this chapter, you will study the structural details of the flowering plant, like its root, stem, leaf, flower, fruits, seeds and appearance. This chapter is important from the exam point of view. So, you need to prepare it very well. You can note down the important features of Class 11 Biology Chapters and then learn them one by one.
Chapter 6: Anatomy of Flowering Plants
This chapter deals with tissues, different types of tissues, their systems, and dicotyledonous and monocotyledonous plants. The diagrams of dicots and monocots are the important ones. You will also include the details of secondary growth in plants. This also consists of 12 exercise questions to practice. For better preparation, solve the complete exercise mentioned at the end of Class 11 biology by understanding all the concepts.
Chapter 7: Structural Organisation in Animals
Chapter 7 of class 11 biology includes details about the various kinds of animal tissues, organ, organ systems, and their organisation. This chapter will also give a brief description of cockroaches and frogs. This chapter includes many different diagrams, so practice each one of them to understand the concepts.
Chapter 8: Cell: The Unit of Life
This is chapter 8 of the textbook for class 11. Cell Structure and Function compiles the information regarding the basic structural and functional unit of organisms, i.e. cell. In this chapter, you will get to know the insights of a cell, what structures are present in cells and what roles they play. In the end, a total of 14 questions are given to test your understanding.
Chapter 9: Biomolecules
This chapter deals with the biological molecules found in a cell. It also includes details of various kinds of enzymes and their properties. This chapter will also give you knowledge of biomacromolecules, proteins, polysaccharides, nucleic acids and also the structures of different proteins. It requires conceptual knowledge, so try to understand the basics of this chapter and solve the exercise. It's important if you want to score good marks.
Chapter 10: Cell Cycle and Cell Division
In chapter 10, Cell Cycle and Cell Division, you will find details of the process of cell division. You will also get to learn about the checkpoints that decide the fate of a cell. This chapter will tell the different phases of cell division, that is, mitosis and meiosis. You will also study the significance of meiosis. It is one of the important chapters of the biology class 11. Practice each question from the exercise after going through the chapter line by line.
Chapter 11: Photosynthesis in Higher Plants
Chapter 11 of Class 11 biology is a compilation of various aspects of the universal process called photosynthesis. It also includes details about the factors that affect photosynthesis. There are a total of 10 topics in the chapter, while 9 questions have been asked in the NCERT exercise. Attempting the exercise and correcting class 11 biology will help you to gain more marks in the CBSE exams.
Chapter 12: Respiration in Plants
Chapter 12, Respiration in Plants, provides you with insights into the process of respiration in plants. In this, you will also study glycolysis and different pathways of respiration. It consists of a total of 6 topics, based on which 12 questions are given at the back of the biology book. Attempt every question of the exercise, and if you need any help.
Chapter 13: Plant Growth and Development
This chapter compiles information on various kinds of plant growth regulators that function to regulate different physiological processes in plants. After the chapter reading, go through the exercise and try to solve each question by yourself. In case of difficulties, you can refer to the Class 11 biology solutions for the chapter.
Chapter 14: Breathing and Exchange of Gases
This chapter will make you familiar with the insights into the process of breathing and the exchange of gases in humans. You will also get to learn about the various kinds of disorders of the respiratory system of humans. This chapter consists of a total of 6 topics, based on which 14 questions have been asked in the exercise.
Chapter 15: Body Fluids and Circulation
This is an interesting chapter, and it deals with the details of the circulatory system of humans. It also includes information about the process of transport through blood circulation. Chapter 15, body fluids and circulation, consists of a total of 6 topics, from which 14 questions have been asked.
Chapter 16: Excretory Products and Their Elimination
This chapter includes insights into the process of excretion and osmoregulation. In this chapter, you will get to learn about the excretory system of humans. This also consists of a total of 8 topics, from which 12 questions have been asked. Attempt all the questions and understand the solutions for class 11 biology to gain more marks in chapter 16, excretory products and their elimination.
Chapter 17: Locomotion and Movement
This deals with the structural details of different types of bones and joints in humans. It also talks about the skeletal system of humans and how movements occur in humans. This chapter consists of a total of 5 topics with 10 questions to practice. For better preparation, solve the exercise and write the correct Class 11 Biology to understand Chapter 17 locomotion and movement in a better way.
Chapter 18: Neural Control and Coordination
Chapter 18 of the is about neural control and coordination. This chapter deals with the details of the nervous system of humans. It also talks about the specialised nerve cells called neurons. This chapter consists of a total of 6 topics and 12 questions which has to be solved.
Chapter 19: Chemical Coordination and Integration
Biology class 11 chapter 19 Chemical coordination and integration deals with the various hormones found in the human body, and it also talks about how these hormones perform their functions. The chapter includes a total of 4 topics, of which 9 questions have been asked for the understanding of the chapter. Since this chapter is mostly memory-based, try to learn it by making notes and practising.
Also, check the NCERT Notes Subject Wise
- NCERT Notes for Class 11 Physics
- NCERT Notes for Class 11 Maths
- NCERT Notes for Class 11 Chemistry
- NCERT Notes for Class 11 Biology
Weightage of Class 11 Biology Chapters
Knowing the class 11 weightage for school exams allows students to focus on high-scoring chapters, manage study time properly, and avoid exam stress. It provides a planned revision strategy, particularly for concept-based topics.
Chapter No. | Chapter Name | Weightage |
1 | 4–6 | |
2 | 5-6 | |
3 | 5-6 | |
4 | 6-7 | |
5 | 2-3 | |
6 | 4-6 | |
7 | 2-3 | |
8 | 5-6 | |
9 | 3-4 | |
10 | 3-4 | |
11 | 4-5 | |
12 | 6–8 | |
13 | 2-3 | |
14 | 4-5 | |
15 | 5-6 | |
16 | 2-3 | |
17 | 3-4 | |
18 | 5-6 | |
19 | 4-5 |
NCERT Solutions for Class 11: Subject-wise
Frequently Asked Questions (FAQs)
1. What are the benefits of NCERT solutions for class 11 biology?
- Your grip on every concept will become stronger.
- Solutions are easy to understand and also easy to remember.
- You will be also benefit in the CBSE exams by using NCERT solutions for class 11 biology as most of the questions come from NCERT.
- You will find yourself more confident, and you will be able to solve mock test papers for biology class 11 exams.
- You will benefit in the medical entrance examination like NEET.
2. What are NCERT Solutions for Class 11 Biology and why are they important?
NCERT Solutions for Class 11 Biology provide detailed answers to all textbook questions, helping students understand concepts clearly and prepare effectively for exams.
3. Are these solutions updated as per the latest CBSE syllabus for 2025-26?
Yes, the solutions are regularly updated to match the latest CBSE curriculum and guidelines, ensuring all topics and chapters are covered as per the current syllabus.
4. Do the solutions include explanations and diagrams for better understanding?
Yes, the solutions break down complex topics into simple explanations and often include diagrams and examples to make learning easier.
5. Are NCERT Solutions for Class 11 Biology helpful for competitive exams like NEET?
These solutions not only help in school exams but also build a strong foundation for competitive exams like NEET and other entrance tests.
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