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NCERT Solutions for Class 11 Biology

NCERT Solutions for Class 11 Biology have been prepared after extensive research on the subject, thus making it one of the best solutions available to you. It offers you step-by-step and to the point explanation of every topic. The NCERT Solutions will help you to form a strong conceptual base that will even support you in the later stages of your studies.

NCERT Biology book for CBSE Class 11 has a total of 22 chapters. Each topic of the NCERT textbook has been properly explained in these chapters with the help of numerous examples and illustrations. The solutions also provide you with an accurate and easy explanation of all the questions given in the NCERT Class 11 Biology book.

The NCERT Biology Solutions for Class 11 by Instasolv will help you to clear your doubts and queries in a precise manner. The solutions are extremely handy during your preparation of examinations. They will further ensure that you have a good performance.

Class 11

Chapter-wise NCERT Solutions for Class 11 Biology

There are a lot of chapters that you will have to study in Biology. Let’s discuss some of the topics that have been covered in the NCERT Textbooks. Those topics included The Living World, Biological Classification, the Plant Kingdom, the Animal Kingdom, Morphology of the Flowering Plant, Anatomy of Flowering Plant, Cell- the Unit of Life, Biomolecules, Cell Cycle, and Cell Division, Mineral Nutrition, Photosynthesis in Higher Plants, Respiration in Plants, Digestion and Absorption, Breathing and Exchange of Gases, Locomotion and Fluids, Neural Control and Coordination, and more. A brief insight into the chapters is given below. 

NCERT Solutions for Class 11 Biology Chapter 1: The Living World

Chapter 1 gives you a broad idea about ‘what is living’ and what the living world contains. Further, we will delve into the topics- the numerous diversities present in the living world and the various taxonomic categories such as species, genus, family, order, class, phylum, and the kingdom. This chapter also explains the different taxonomical aids used in taxonomic studies.

NCERT Class 11 Biology Chapter 1 consists of the solutions to all the 11 questions provided in your textbook. Questions are mostly definition based and to identify the correct sequences.

NCERT Solutions for Class 11 Biology Chapter 2: Biological Classification

Do you know who first proposed the idea of the biological classification of plants and animals? You will get the answer in Chapter 2 of your NCERT Class 11 Biology book. In this chapter, you will study the five kingdoms proposed by R.H. Whittaker viz. Kingdom Monera, Kingdom Protista, Kingdom Fungi, Kingdom Plantae, and Kingdom Animalia as well as about the characteristic features of Viruses, Viroids, and Lichens. This chapter further helps you to understand the bases of differentiation between the various kingdoms.

CBSE Class 11 Biology Chapter 2 consists of the solutions to all the 12 questions provided in your book. Questions are relating to the characteristic features of the various kingdoms, comparative questions on the viruses and viroids are also asked. To attempt these types of questions, you must go through the chapter very carefully by keeping in view every intricate point mentioned in the NCERT solutions.

NCERT Solutions for Class 11 Biology Chapter 3: The Plant Kingdom

As we have already discussed in an earlier chapter about the various classifications of kingdoms, Chapter 3 will give you a deeper insight into the Kingdom Plantae. It includes topics such as Algae, Bryophytes, pteridophytes, Gymnosperms, and Angiosperms. Furthermore, this chapter also describes the whole plant life cycle and also about the alternation of generations. The characteristics of each classification of the Plant Kingdom have been explained in great detail in this chapter. 

Chapter 3 consists of the Solutions to all the 12 questions. Chapter 3 includes One-liners, Match the Following, Differences, and Short Answer Type Questions relating to heterospory, isogamy, antheridium and algae, etc. The focus must be given to this chapter as it is important from the examination point of view. 

NCERT Solutions for Class 11 Biology Chapter 4: The Animal Kingdom

In the 3rd Chapter, we had discussed the Plant Kingdom. Now in the present chapter; we will study Kingdom Animalia. In Chapter 4, we will delve into the basis of the classification of the different phylums of the Animal Kingdom. The fundamental features like the level of organisation, symmetry, organisation of the cells, notochord, coelom, segmentation, etc., have been well explained to classify the Animal Kingdom.

Class 11 Biology Chapter 4 consists of the solutions to all the 15 questions provided in your NCERT Textbook. Questions are related to the topics like steps for classification of the Animal Kingdom – intercellular and extracellular digestion, direct and indirect development, water vascular system, etc. Few Comparative and Match the Following Questions have also been asked.

NCERT Solutions for Class 11 Biology Chapter 5: Morphology of Flowering Plants

Have you ever wondered how a flower blooms so beautifully? If yes, then you will notice that each flower exhibits variation in terms of its shape, size, structure, lifespan, habitat, and the mode of nutrition. Chapter 5 is an attempt to describe the morphology of the flowering plant. It explains the root, the stem, the leaf, the inflorescence, the flower, the fruit, and the seed. 

You will learn about the semi-technical description of the typical flowering plant and also learn about the description of some important families of the flowering plants. There are 15 questions in Chapter 5. It comprises Description based, Definition based, and Comparative Questions for your better understanding. You must have a proper understanding of all the parts of the flower if you want to maximise your score in the examination.

NCERT Solutions for Class 11 Biology Chapter 6: Anatomy of Flowering Plants

Anatomy refers to the study of internal structures. Chapter 6 introduces you to the internal structure and the functional organisation of the higher plants. In a plant, the different organs represent differences in the internal structure. The topics of tissues, types of tissues, and the whole tissue system have been well explained. Based on the tissue organisation of roots, stems, and leaves, the anatomy of Dicotyledonous plants and monocotyledonous plants have been elucidated in this chapter. 

It also highlights the secondary growth in plants and especially about the vascular cambium and cork cambium as they are the tissue involved in the secondary growth. 

The chapter 6 consists of the solutions to all the 12 questions provided in NCERT Class 11 Bio Textbook. The questions are based on the complex tissues, stomatal apparatus, periderm, and the types of meristems. Diagrammatic and Comparison based questions have also been asked.  

NCERT Solutions for Class 11 Biology Chapter 7: Structural Organisation in Animals

Chapter 7 of CBSE NCERT Class 11 Biology book will familiarize you with one of the most important topics of the Biology Subject. Here you will learn about how the tissues in animals are organised into specific proportions and arrangements that result in the formation of different organs like the lung, heart, stomach, and kidneys. The broad classification of animal tissues into the epithelial, connective, muscular and neural types has also been dealt in great detail. 

This chapter further explains various organs and the organ system, morphology and the anatomy of few animals along with their diagrammatic representations have been provided for better understanding.

Chapter 7 consists of the solutions to all the 14 questions. Questions are One-liner, Mark the Odd One Out, and Match the Following, Comparative and Diagrammatic. You must go through the chapter very carefully to answer these questions correctly. Every line of the chapter is important as questions can be made out of it.

NCERT Solutions for Class 11 Biology Chapter 8: Cell – The Unit of Life

A cell is the basic structural and functional unit of all living organisms. All the organisms are made up of cells, and they can be unicellular or multicellular organisms. Chapter 8 touches upon the most fundamental questions like what is a cell? The cell theory has been explained along with an overview of the cell. The two broad classifications in the cell, the Cell Envelope and its Modifications, the Whole Structure of Eukaryotic Cells have been explained with the help of numerous diagrammatic representations. 

The components like the cell membrane, cell wall, endomembrane, the endoplasmic reticulum, Golgi apparatus, Lysosomes, vacuoles, mitochondria, plastids, ribosomes, cytoskeleton, cilia and flagella, centrosome and centrioles, nucleus, and microbodies are also clarified.

CBSE Class 11 Biology Chapter 8 consists of 14 questions. The questions are mostly asked from the topic of a eukaryotic and prokaryotic cell, the various components of the cell, nuclear pores, and chromatin. Questions include the Choose the Correct Option, Match the Following, Draw the Diagram and Brief Description-based. You must practice all the diagrams with proper labelling in order to secure good marks.

NCERT Solutions for Class 11 Biology Chapter 9: Biomolecules

Biomolecules is Chapter 9 of the NCERT Class 11 Biology Subject. This chapter sheds light on the importance of chemical compositions and how we can analyse the chemical compositions. It further describes the primary as well as secondary metabolites present in the animal and plant tissues, biomacromolecules, proteins, polysaccharides, and nucleic acids. The structure of proteins has been elucidated well with diagrams in this chapter. 

The metabolic basis of living and the process of metabolism, the notions connected with the enzymes, its chemical reaction, and the nature of enzyme actions, factors affecting enzyme activity, and the classification and nomenclature of enzymes have also been highlighted in this chapter. 

CBSE Class 11 Biology Chapter 9 consists of the Solutions to all the 15 questions provided in your NCERT Textbook. These questions are designed to test your comprehension skills. The questions of chapter 9 are very important from the examination point of view.

NCERT Solutions for Class 11 Biology Chapter 10: Cell Cycle and Cell Division

In the previous chapters, we have discussed that every living being is made up of cells and how each cell functions and the various components of the cell do matter. Chapter 10 of NCERT Class 11 Biology is an attempt to further discuss the topic of the cell. The cell passes from one division to the next division through various stages. These stages of the cell are called the Cell Cycle. In two phases, the cycle of the cell is divided. 

First is the Interphase and the Second is the Mitosis (M phase). This chapter goes into the intricate details of these two phases and describes it in detail. The Interphase is divided into three phases- the G1 Phase, S Phase, and the G2 Phase. The M Phase is classified into- Prophase, Metaphase, Anaphase, and Telophase. The significance of Mitosis and Meiosis is also well explained.

CBSE Class 11 Biology Chapter 10 consists of 14 questions. The questions are framed on the topics like Cell Cycle Span, Quiescent Phase of the Cell Cycle, mitosis, synapsis, chiasmata, etc. Once you have read the topics carefully, you will find the answers with no trouble.

NCERT Solutions for Class 11 Biology Chapter 11: Transport in Plants

In your CBSE Class 11 Biology book, Chapter 11 deals with Transport in Plants. The plants obtain nutrition in the form of ions and salts from soil and water. They transport these nutrients from the environment into the plants and also from one plant cell to another cell. Transportation from one cell membrane to the cell membrane of another cell can be carried out through the process of diffusion, facilitated transport or active transport.

 In this chapter, you will learn about the various means of transport, the plant and water relation, long-distance transport of the water, the mechanism about how the plants absorb the water, and how the water goes up in the plant. It also touches upon the issues of transpiration i.e. the evaporative loss of water by plants and about the phloem transport- flow from source to sink.

NCERT Class 11 Biology Chapter 11 consists of the Solutions to all the 16 questions provided in your NCERT Textbook. For better understanding, it consists of the Short Answer Type Questions, Comparative Questions, and Diagrammatic Questions. To revise all topics of the Chapter, these questions will be of great help.

NCERT Solutions for Class 11 Biology Chapter 12: Mineral Nutrition

On the list of Chapters in NCERT Class 11 Biology Textbook, Mineral Nutrition is Chapter 12. It comprises the topics that mainly focus on inorganic plant nutrition. You will study the various methods to identify the elements that are essential to growth and the criteria for establishing the essentiality. This chapter will provide you with a brief about the role of essential elements and the mechanism of the absorption of elements. The mechanism of biological nitrogen fixation has been explained along with the proper step-by-step diagrammatic representation.

There are 10 questions in chapter 11. Practice them carefully to excel in your CBSE Class 11 Biology exam. You must know the steps involved in the formation of a root nodule and the conditions necessary for the fixation of atmospheric nitrogen by Rhizobium.

NCERT Solutions for Class 11 Biology Chapter 13: Photosynthesis in Higher Plants

Photosynthesis is the process through which plants manufacture their food. It is a physic-chemical process by which plants use energy from light to derive the synthesis of the organic compounds. The present chapter sheds light upon photosynthesis and the early experiments which were carried out to know about this process. The chapter then discusses the place where the process of photosynthesis takes place and the pigments involved in this process. The light reaction or the photochemical phase, the use of ATP and NADPH, the Calvin cycle along with its diagram, the C4 pathway, and photorespiration is also discussed in this chapter. 

CBSE Class 11 Biology Chapter 13 consists of the solutions to all the 9 questions provided in your NCERT Textbook. The questions in this chapter are designed to test your reasoning skills. Questions are related to the topics C3 and C4 plants are asked, few are Experimental based Questions while the other is Comparison based.

NCERT Solutions for Class 11 Biology Chapter 14: Respiration in Plants

Do you know how the plants breathe? This chapter will pacify your curiosity. In this chapter, you will learn about the process of respiration in plants. Glycolysis is the only process of respiration in anaerobic organisms and the steps involved in the process have been dealt with. 

You will also learn about aerobic respiration, the citric acid cycle, the electron transport system (ETS), the respiratory balance sheet, and the amphibolic pathway. Proper steps of the interrelationship between metabolic pathways showing respiration mediated breakdown of different organic molecules to CO2 and H2O have been represented.   

Class 11 Biology chapter 14 consists of 12 questions. Mostly the questions are Comparative, and some of them relate to the Schematic Representation as well. You need to have a clear understanding of the concepts then only you can solve these practical questions.

NCERT Solutions for Class 11 Biology Chapter 15: Plant Growth and Development

CBSE Class 11 Biology Chapter 15 will explain various fundamentals of the growth and development in the plant. The chapter explores both the intrinsic and extrinsic factors of the plant. The other topics in this chapter include growth differentiation, dedifferentiation and redifferentiation, plant growth regulators and more.

Chapter 15 consists of the Solutions to all the 11 questions provided in your NCERT Textbook. Questions are based on the topics of growth, differentiation, dedifferentiation, meristem, and growth rate. 

NCERT Solutions for Class 11 Biology Chapter 16: Digestion and Absorption

As the heading of the Chapter indicates, it highlights how the process of digestion takes place. It explains that the human digestive system consists of the alimentary canal and the associated glands; it also delves into each and every organ which helps in the process of digestion. Further, the chapter explains the mechanism of the absorption of digestive products that takes place and also about the disorders of the digestive system. 

Chapter 16 consists of 15 questions. Questions consist of Choosing the Correct Answer, Match the Following, Short Answer type. The questions of chapter 16 are very important from the examination point of view.

NCERT Solutions for Class 11 Biology Chapter 17: Breathing and Exchange of Gases

NCERT Solutions for Class 11 Biology Chapter 17 will take you through topics like respiratory organs, mechanism of breathing, exchange of gases, transport of gases, and more. There are also portions dealing with the regulation of the respiratory system and about the disorders in the respiratory system. 

Chapter 17 of the NCERT Solutions for Biology Class 11 includes a total of 14 questions. All the answers to these questions have been provided by Instasolv experts. The questions are Explanation based, Definition and Comparative. You need to have a proper understanding of the topics given in the chapter then only you will be able to answer such questions correctly.

NCERT Solutions for Class 11 Biology Chapter 18: Body Fluids and Circulation

Chapter 18 of CBSE NCERT Class 11 Biology book will introduce you to the amazing fact that blood is a special connective tissue in the body. Here in the chapter, you will learn blood, plasma, the formed elements present in the blood, blood groups, lymph, the circulatory system, the cardiac cycle, ECG, double circulation, disorders in the circulatory system. Systematic diagrams of each topic are also there for a better understanding.

NCERT Class 11 Biology Chapter 18 consists of Solutions to all the 14 questions provided in your NCERT textbook. Go through the chapter very thoroughly for better understanding. The questions are- Match the Following, Comparative and Explanation based.

NCERT Solutions for Class 11 Biology Chapter 19: Excretory Products and their Elimination

The chapter 19 is about excretory products and their elimination. You will learn about the human excretory system, formation of urine, the functions carried by the tubules, the process of concentration of the filtrate. Generally, you will deal with how the kidneys are regulated and the role of other organs in the process of excretion.

The chapter consists of 12 questions. Questions are True and False, Match the Following, Fill in the Blanks, and also Explanation based.

NCERT Solutions for Class 11 Biology Chapter 20: Locomotion and Movement

Movement is one of the important features of living beings. In Chapter 20, you will understand about the notion of locomotion and movement. The chapter highlights the different types of movement viz. amoeboid, ciliary and the muscular, the structure of contractile proteins, skeletal system, the various disorders in the muscular and the skeletal system and more. 

There are a total of 10 questions in the Class 11 Biology book. It comprises True and False, Match the Following and One-liners for Better Comprehension. The questions include sliding filament theory of muscle contraction, steps involved in muscle contraction, and the different types of movements exhibited by the cells of the human body. 

NCERT Solutions for Class 11 Biology Chapter 21: Neural Control and Coordination

While studying NCERT Biology Class 11 Chapter 21, you will understand the whole mechanism of the neural system, the human neural system, and the parts of the human neural system. Being one of the most interesting Chapters in your syllabus, there is less learning and more understanding required. 

In this chapter, you will understand how the neuron acts as the structural and functional unit of the neural system, the central neural system, reflex action, and reflex arc. Chapter 21 of CBSE Class 11 Textbook includes 12 questions. These questions will primarily test your comprehension skills.

NCERT Solutions for Class 11 Biology Chapter 22: Chemical Coordination and Integration

The mechanism of chemical coordination and integration is covered in NCERT Class 11 Biology Chapter 22. This chapter focuses on the endocrine glands and the hormones; the human endocrine system along with its schematic diagram has been explained. Further, it highlights the hormones of different organs like the heart, kidneys and the gastrointestinal tract. 

Chapter 22 consists of the Solutions to all the 9 questions provided in your NCERT textbook. Questions are to Define the Terms, Match the Following, Fill in the Blanks, and One-word. For better understanding, diagrammatic questions are also asked.

Important Topics Covered in NCERT Solutions for Class 11 Biology

  1. Three Domains of LifeTaxonomy and Systematics
  2. Binomial Nomenclature
  3. Five Kingdom Classification 
  4. Protista and Fungi
  5. Classification and Features of Plants into Major Groups
  6. Morphology of Parts of Flower
  7. Anatomy of Different Tissues
  8. Animal Tissue
  9. Theory
  10. Organelles
  11. and Function Of Proteins
  12. Cycle
  13. Osmosis
  14. Toxicity
  15. Cycle
  16. Photosynthesis
  17. Nervous System
  18. Human Endocrine System

 Chapter-wise NCERT Solutions for CBSE Class 11 Biology by Instasolv

  • NCERT Solutions for Class 11 Biology for all the Chapters are meticulously prepared by the subject experts at Instasolv; 
  • All the solutions are based as per the latest syllabus of CBSE Biology for Class 11; 
  • Simple language, crisp and lucid explanation has made the solutions very comprehensive; 
  • Apart from NCERT textbooks refer to the NCERT Solutions to remove any doubt in the subject; 
  • The solutions will help you to attain the right approach for accurately answering the questions.