NCERT Biology Class 11 Solutions acts as a brilliant guide for students and is based entirely on the NCERT syllabus. As we know that Biology is an essential part of Science and one of the core subjects in CBSE we need to study hard to understand the concepts.
Biology is a natural science subject that deals with life and living organisms. The study of biology includes physical and chemical structures within various organisms, their internal functions and mechanisms, their growth, evolution, and habitat influence. From plant and animal kingdoms to complex chemical coordination and neural functions of the organisms, NCERT Class 11 Biology includes all these subdivisions and covers the subject in 22 chapters.
Vedantu offers NCERT Biology Class 11 Solutions in a pdf format which can be easily accessed from our website. The guide covers all the chapters in the Biology textbook for class 11 provided by the National Board. Each module is carefully prepared to make learning comfortable and more efficient. By learning the solutions,, you can easily understand the topic covered in each chapter, making concepts clearer.
The guide also includes questions that were asked in the previous years. By solving these, you get a better idea of the kind of questions that are generally asked in your exams. Vedantu ensures that you have all the study material you need to clear your exams with flying colours. The PDF provided here also includes solutions for important questions asked in competitive exams, helping you in solving them easily. Regular practice ensures success and will give you the confidence to crack much difficult entrance examinations like NEET, AIIMS etc., and this NCERT Solutions for Class 11 Biology can offer just the same.
Biology NCERT Solutions for Class 11 - Free PDF Download (All Exercises are Covered with Answers)
Biology is an essential branch of natural science and has revolutionized our approach towards living beings. Biophysics, Biochemistry, Microbiology, etc., offer new opportunities in the field of science and research. Many people pursue this branch and make a successful career out of it.
Class 11 Biology NCERT Solutions have a wide range of topics which include the morphology and anatomy of plants, photosynthesis in higher plants, cells, cell cycle and divisions, biomolecules, respiration, digestion, circulation, excretory, neural and loco movements, mineral nutrition, etc. NCERT Solutions for Class 11 Biology offered by Vedantu helps you learn every topic in a step-by-step manner. NCERT Solutions provides answers to a wide range of questions in the Class 11 Biology textbook. By solving these, you can understand the topic in relatively easily.
Chapter 1 - The Living World
In this chapter, students will learn about the diversified world of life forms and their living processes. The concepts of Biodiversity to see a large variety of living organisms and the need for classification will be explained. Through this chapter, the student will have the means to talk to about the three domains of life and shall also understand the need for standardized taxonomy and systematics for a living organism. Further, the concept of species and taxonomic hierarchy will be described, and binomial nomenclature will be explained in detail. Before the chapter ends, the student will understand the tools for the study of taxonomy-museums, zoological parks, herbaria, botanical gardens, etc. There are 11 questions in the exercise.
Chapter 2 - Biological Classification
This chapter will talk about how attempts have been made to classify living organisms and later, students will understand how different criteria were being used instinctively in the classification of five kingdoms. Further, the chapter will let students understand the considerations which have influenced the classification system and what are the salient features of the kingdoms. The chapter continues to explain the various details of biological and how other characteristics have influenced the classification of different kingdoms of Monera, Protista, and Fungi which further lead to the major classification of Lichens, Viruses, and Viroids into different groups. There are 12 questions in exercise to perform.
Chapter 3 - Plant Kingdom
In this chapter, students will learn about the salient features and a broad classification of plants kingdom and how they get classified over time and become the members of major the proposed system. The chapter will continue to talk about information related to different characteristics which can be found in a variety of living organisms like - Algae, Bryophyta, Pteridophyta, Gymnospermae and Angiospermae and how they are highly variable from one another. You will find the three to five salient and distinguishing features associated with every major group and further explanation comprised of at least two examples of each category. Before the chapter ends, the students will learn about the life cycle of Angiosperms – and how the classification of them based on their class, characteristic features and examples have been done. There are 12 questions in total.
Chapter 4 - Animal Kingdom
Through this chapter, the students will come to know about the fundamental features of different animals, their forms and structure. Further, you will about the study the salient features of the systematic classification and how important it was in order to describe the emerging new species. Further, students will get to know about the classification of animals and the basis of the classification from nonchordates up to phyla level and from chordates up to class level. With each classification, there are three to five salient features and at least two examples of each category are provided for a better understanding of the students. The chapter comprises of 15 questions in total.
Chapter 5 - Morphology of Flowering Plants
In this chapter, the student will get to know about the diverse forms of life that can be found on earth and how through naked eyes or using the magnifying lenses, these structural forms are analyzed and observed. The living phenomena have been recorded in detail in this chapter. The students will be fascinated by the wide range of structure of higher plants and will understand the large diversity of external structural or also called morphology. Students will be successful in understanding the characteristics and how the modifications at the tissue level have been seen in the plants in order to adapt to the environment. There are 15 questions in chapter to attempt.
Chapter 6 - Anatomy of Flowering Plants
In this chapter, the students will understand the similarities and variations found at the structural level of the living organisms at a larger level. The external morphology is introduced in detail. The study of the internal structure of plants called anatomy will be introduced for the students so that they can understand the different organized organs and their associated functions in flowering plants. Different organs of higher plants like root, stem, leaf, inflorescence, flower, fruit and seed, etc. will be discussed in the chapter and can be seen how anatomically plants are different from one another. There are 12 questions in total in the chapter.
Chapter-7: Structural Organisation in Animals
In this chapter, the large variety of organisms of the Animal kingdom at both multicellular and unicellular level will be discussed for the better understanding. The student will get to know about the organized manner of the animal tissues and their basic functions in both unicellular and multicellular. The morphology of simple organism and the complex organisms like humans will be discussed. Students will be surprised to know about the anatomy and functions of tissues which are organized in a manner to form organ system and how these different systems perform various functions like digestive, circulatory, respiratory, nervous and reproductive, etc. A brief account of an insect (cockroach) will be provided to the students. There are 14 questions in total.
Chapter 8 - Cell-The Unit of Life
In this chapter, students will get to know about the detailed description of the diversified form and appearance of all life forms. The chapter will talk about the cell theory and the inanimate details about the cell which is the basic unit of life in all living organisms. The students will get to know in detail about the structure of prokaryotic and eukaryotic cells. The fundamental details about the plant cell and animal cell will make the students understand the difference. Further, in the chapter, you will get to know more about cell envelope, cell membrane, cell wall, etc. The structure and function of the cell organelles will be discussed. Other important parts of the cell-like endomembrane system, endoplasmic reticulum, Golgi bodies, lysosomes, vacuoles, mitochondria, ribosomes, plastids, microbodies, cytoskeleton, cilia, flagella, centrioles (ultrastructure and function); nucleus, nuclear membrane, chromatin, nucleolus etc. found in both plant and animal cells will provide clear understanding to the students. There are 14 questions in total.
Chapter 9 - Biomolecules
In this chapter, the student will get to know about the elemental analysis of the chemical constituents of living cells in plants, animals and microbes. Further, in the chapter, you will learn about the biomolecules found in living tissue. Students will get to know the exciting aspects of chemistry related to the structure and function of proteins found in living organisms. Before the chapter ends, you will learn about the roles played by the carbohydrates, lipids, nucleic acids, enzymes, etc. and how important their role is in the chemistry of the living organism. The types and properties of the enzyme along with their related identifiable actions will throw some light for better understanding. There are 15 questions in total.
Chapter 10 - Cell Cycle and Cell Division
In this chapter, you will get to know how a life form in a single cell starts. Further, the chapter will talk about the growth and reproduction carried out by the cell. These characteristics are indeed in the living organism. The cycles of growth and division of the cell shall be discussed in the chapter. The students will get to know about the mitosis and meiosis in details and will help students in understanding their significance in the life of an organism. There are 16 questions in total.
Chapter 11 - Transport in Plants
The chapter will describe the Transportation mechanism in plants and how the movement of water, gases, and nutrients occurs in plants. Some light will be thrown on the process involving the cell to cell transportation and how the process of Diffusion facilitates. Students will understand the active transport. The perspective of plant-water relations and further details about Imbibition, water potential, etc. shall be discussed. Some of the basic functions like osmosis, plasmolysis will help students in better understanding. The long-distance transportation of water and other processed like absorption, apoplast, symplast, transpiration pull, root pressure, and guttation, etc. shall be discussed in brief. Other indeed processes of plants like transpiration, opening and closing of stomata, uptake, and translocation of mineral nutrients-Transport of food, phloem transport, mass flow hypothesis and diffusion of gases will be discussed. There are 16 questions in total.
Chapter 12 - Mineral Nutrition
This chapter will talk about the essential minerals, the role played by macro- and micronutrients the deficiency symptoms found in plants and the level of toxicity caused by some mineral. The students will get to know about the elementary idea of hydroponics which is used as a method to study mineral nutrition. Further, in the chapter, the students will read about the metabolism process involving nitrogen, a brief account on the nitrogen cycle and the related biological nitrogen fixation carried out by microbes in plants. This chapter contains 10 questions in total
Chapter 13 - Photosynthesis in Higher Plants
In this chapter, the students will know about the process of photosynthesis which is the mean of autotrophic nutrition in plants. It further discusses the site where photosynthesis takes place, the elementary idea about the essential pigments involved in photosynthesis. The chapter further discusses the photochemical and biosynthetic phases which happen during photosynthesis. The student will get to know about the cyclic and non-cyclic photophosphorylation, the chemiosmotic hypothesis, etc. They will understand the photorespiration, the C3 and C4 pathways and how some factors affect the photosynthesis. This chapter contains 9 questions in total.
Chapter 14 - Respiration in Plants
In this chapter, you will understand the mechanism of exchange of gases. The understanding of the cellular respiration will be provided along with a detail description of further processes like glycolysis, and anaerobic fermentation. The chapter further talks about the involved TCA cycle and how the aerobic electron transport system is carried out. The student will understand the relation between energy and how the number of ATP molecules generated. They will understand the details involved amphibolic pathways and respiratory quotient for further understanding. There are 12 questions in total
Chapter 15 - Plant - Growth and Development
In this chapter, the students will understand the process involved in the germination of seed and what are the phases of plant growth and some details about the plant growth rate. Further, the conditions of growth will be discussed. The details about the differentiation, dedifferentiation, and re-differentiation shall be discussed in the chapter and how the sequence of developmental processes in a plant cell is significant. The information about the growth regulators like auxin, gibberellin, cytokinin, ethylene, ABA, etc. shall be provided. The chapter further accounts about the seed dormancy, the vernalization and the photoperiodism for some better understanding. The chapter contains 11 questions.
Chapter 16 - Digestion and Absorption
In this chapter, students will learn about the alimentary canal and digestive glands and what is the role of digestive enzymes and gastrointestinal hormones in the digestion process. Further, the information can be taken into the account about the peristalsis, digestion, absorption, and assimilation of proteins. The chapter also talks about the carbohydrates and fats, the calorific values of proteins, carbohydrates, and fats shall be discussed in detail in the chapter. The student will understand the process of egestion, information about nutritional and digestive disorders like PEM, indigestion, constipation, vomiting, jaundice, diarrhea, etc. will also be discussed. The chapter contains 15 questions.
Chapter 17 - Breathing and Exchange of Gases
A brief recall about the respiratory organs in animals will be provided in the chapter in the beginning and further, the respiratory system in humans will be discussed. The chapter will talk about the mechanism of breathing and what is its regulation in humans like an exchange of gases, transport of gases and regulation of respiration, respiratory volume, etc. The chapter also talks about the disorders which are related to respiration like asthma, emphysema, occupational respiratory disorders. There are 14 questions in total.
Chapter 18 - Body Fluids and Circulation
The chapter will throw light on the composition of blood, details about the blood groups and also about the coagulation of blood. The composition of lymph and its function shall be discussed and how the human circulatory system works. The Structure of the human heart and blood vessels as well as the cardiac cycle, cardiac output, ECG, etc. will be discussed in the chapter. The concept of double circulation, the regulation of cardiac activity and the disorders of the circulatory system like hypertension, coronary artery disease, angina pectoris, heart failure will provide a better understanding. There is a total of 14 questions.
Chapter-19: Excretory Products and Their Elimination
In this chapter, different modes of excretion process like ammonotelism, ureotelism, uricotelism, etc. will be discussed. The human excretory system and the details related to the structure and function, the urine formation, osmoregulation, etc. will help in providing a better understanding to the students. The regulation of kidney function and details about renin-angiotensin, atrial natriuretic factor, ADH and diabetes insipidus, etc. will be provided. The role of other organs in excretion and the disorders like uremia, renal failure, renal calculi, nephritis; dialysis and artificial kidney will be discussed further. There is a total of 12 questions.
Chapter 20 - Locomotion and Movement
In this chapter, you will get to know about different types of movement like ciliary, flagellar, muscular, etc. in the living organisms. The details about skeletal muscle-contractile proteins and muscle contraction shall be provided to the students. For more information, details about the skeletal system and its functions shall be provided. The information related to joints and the disorders of a muscular and skeletal system like myasthenia gravis, tetany, muscular dystrophy, arthritis, osteoporosis, gout, etc. will be discussed. The chapter contains 10 questions in total.
Chapter 21 - Neural Control and Coordination
The information about the neuron and nerves is provided to the students in this chapter where they will further get to know about the nervous system in humans and the necessary details related to the central nervous system. For more, the information about the peripheral nervous system and the visceral nervous system shall be discussed. The process involved in generation and conduction of nerve impulse, reflex action, sensory perception, etc. will be discussed in detail. The sense organs and the elementary structure and functions of eye and ear etc. will be discussed as well. The chapter contains 12 questions.
Chapter 22 - Chemical Coordination and Integration
In this chapter, you will get to know about the endocrine glands and hormones in detail and some deep insights shall be provided about the human endocrine system and various parts like hypothalamus, pituitary, pineal, thyroid, parathyroid, adrenal, pancreas, gonads, etc. An elementary idea about the mechanism of hormone action shall be discussed. The role of hormones as messengers and regulators will be discussed in details and the hypo - and hyperactivity and related disorders like dwarfism, acromegaly, cretinism, goiter, exophthalmic goiter, diabetes, Addison's disease, etc. will be discussed. There is a total of 9 questions in the chapter.
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NCERT Class 11 Biology Chapter wise Solutions - Free PDF Download