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Class 11 Biology - NCERT Solutions 2024-25, Download PDF
Edited By Irshad Anwar | Updated on Apr 30, 2025 03:45 PM IST
NCERT Solutions for Class 11 Biology chapters 1 to 19 are available for the students who are going to appear in their Class 11th exams. The solutions for Class 11 Biology will be beneficial, as they will enhance your marks as well as your knowledge. Biology is considered to be one of the most important subjects, as the units of study in CBSE Class 11 biology are living organisms. Class 11 have been updated to the latest CBSE Syllabus. Even if you are planning to appear for medical entrance exams like NEET, a study of NCERT Solutions (Class-wise) will improve your marks in the exam. A thorough strategy, backed by extensive and in-depth learning of concepts, is your best bet for acing the board exams. Students can use these solutions to find the answers to every question in the NCERT textbook.
Biology is referred to as the study of various life forms existing on Earth. Studying the questions in the Biology NCERT Solutions for Class 11, will make you familiar with the fundamental studies of living organisms. The syllabus of CBSE Class 11th Biology mainly includes the details of the structures and functions of various components of the bodies of plants and humans in units like structural organisation in plants and animals, plant physiology, and human physiology. Class 11 are present in PDF format to download and use offline. We, at Careers360, provide Chapter-wise NCERT Solutions for Class 11 biology.
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.
NCERT Solutions for Class 11 Biology: Chapter Details
The Class 11 NCERT Textbook of Biology includes a total of 19 chapters divided into 5 units, namely, diversity in the living world, structural organisation in plants and animals, cell structure and function, plant physiology and human physiology. To ace the Class 11 Biology Exam, an important prerequisite is knowing the solutions for the Chapters. So every student must have for class 11 biology in hand, ready for better preparation for the CBSE exam, and the important thing is that your understanding of concepts of biology chapters will improve, and you will be able to perform better in exams. Here is a brief analysis of all 16 chapters of the Biology Class 11. Before starting preparation, you must go through this brief introduction given for Class 11 Biology. You will find the Class 11 Biology Questions and Answers for each chapter.
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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 18 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 a total of 4 topics with 12 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 earthworms, cockroaches and frogs. This chapter consists of a total of 5 topics with 14 questions in the exercise. 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 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. This also consists of a total of 7 topics, from which 11 questions have been asked. 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.
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. For acing the exam, this chapter is important, and biology will be beneficial for chapter 18, neural control and coordination.
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 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 weightage 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 | The Living World | 4–6 |
2 | Biological Classification | 5-6 |
3 | Plant Kingdom | 5-6 |
4 | Animal Kingdom | 6-7 |
5 | Morphology of Flowering Plants | 2-3 |
6 | Anatomy of Flowering Plants | 4-6 |
7 | Structural Organisation in Animals | 2-3 |
8 | Cell: The Unit of Life | 5-6 |
9 | Biomolecules | 3-4 |
10 | Cell Cycle and Cell Division | 3-4 |
11 | Photosynthesis in Higher Plants | 4-5 |
12 | Respiration in Plants | 6–8 |
13 | Plant Growth and Development | 2-3 |
14 | Breathing and Exchange of Gases | 4-5 |
15 | Body Fluids and Circulation | 5-6 |
16 | Excretory Products and Their Elimination | 2-3 |
17 | Locomotion and Movement | 3-4 |
18 | Neural Control and Coordination | 5-6 |
19 | Chemical Coordination and Integration | 4-5 |
NCERT Solutions for Class 11: Subject-wise
| NCERT solutions for Class 11 Maths |
| NCERT solutions forClass 11 Chemistry |
| NCERT solutions for Class 11 Physics |
Frequently Asked Questions (FAQs)
1. What are the benefits of NCERT solutions for class 11 biology?
- You will be benefitted in the medical entrance examination like NEET.
- You will gain good marks in your exam by using solutions for NCERT 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 benefitted 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.
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