NCERT Solutions for Class 11 Biology

NCERT solutions Class 11 Biology is one of the top learning guides that students can use to prepare for their exam. NCERT solutions cover important questions with complete answers. All solutions are available in PDF format, which students can easily access. eSaral’s faculty designs the solutions in a simple way to help students prepare for their exams. NCERT solutions are mainly used to help students to identify their weak points and work on it for a higher score. With the help of NCERT solutions, students can answer all questions in the NCERT textbook.

It is difficult for students to choose the correct study material that meets their needs. At eSaral, we offer chapter-wise and offline NCERT Solutions to meet the needs of our students. NCERT solutions Class 11 is a great reference guide for students who are striving to achieve their career goals.

NCERT Solutions for Class 11 Biology Chapter List

NCERT Class 11 Biology has removed the following chapters:

• Transports in Plants

• Mineral Nutrition

• Digestion and Absorption

Most of the time, you are reading a concept and trying to remember it. You don’t even know what the topic is, but you need to remember it because it’s one of the most important parts of your exam. That’s where NCERT Solutions comes in. Instead of rephrasing the prescribed answers, the answers are reworded into a language that students can easily comprehend and recall. The content is prepared by a team of experts who prepare notes based on the students’ ability to grasp concepts in Class 11. The result is content that is specifically designed for students, which makes it easy to gain a deep understanding of the subject.

NCERT Solutions for Class 11 Biology

NCERT Solutions for Class 11 Biology is a useful resource from the point of view of Class 11 Examination and Entrance Examination such as NEET etc. Our experts from eSaral have developed these solutions to enable students to understand maximum information with minimum mental stress. The answers are written in relatively easy-to-understand language.

Students can easily get topic-wise NCERT Solutions in Class 11 Biology for every Chapter and Unit covered in the Biology textbooks. The NCERT Solutions for Biology Class 11 explain important concepts like biological classification, Animal and Plant Kingdom, Morphology, Structural Organization, Biomolecules, Cell Division, Transport in Plants, Nutrition, Photosynthesis etc.

The PDF of NCERT Solutions class 11 Biology PDF includes the study materials for students to access content offline.

NCERT Solutions Class 11 Biology Chapter Details and Exercises

Chapter 1: The Living World

In this chapter, we cover some of the most basic concepts such as what is living?, diversity in the living world, taxonomic categories, taxonomical aids and more. The living world is full of diversity. Millions of species have been discovered and described so far, but millions more are yet to be found. The taxonomical studies of different species of plants or animals are important in agriculture and forestry and in industry in general for understanding our resources and diversity. 

Topics covered in class 11 Biology chapter 1 The Living World

• Biodiversity

• Need for classification

• Three domains of life

• Taxonomy and systematics

• The concept of species and taxonomic hierarchy

• Binomial nomenclature.

Chapter 2: Biological Classification

This chapter will explore the distinctions between Kingdoms Monera and Protista, as well as the distinctions between Fungi and Plantae of Whittaker's classification system. The Kingdoms of Plantae (commonly referred to as Plant and Animal Kingdoms) will be discussed separately in chapters 3 and 4 of the biological classification. Additionally, you will be presented with the following Kingdoms: Monera; Protista; Fungi; Plantae; Animalia; Viruses; Viroids; and Lichens.

Topics covered in class 11 Biology chapter 2 Biological Classification

• Five kingdom classification

• Salient features and classification of Monera, Protista and Fungi into major groups

• Lichens, Viruses and Viroids.

Chapter 3: Plant Kingdom

In the previous chapter we looked at the general classification of living organisms based on the system proposed by whittaker (1969). Whittaker proposed the Five Kingdom classification which includes monera, protista, fungi, animalia and plantae.

In this chapter, we’ll look at classification within the kingdom plantae or ‘plant kingdom.’ You’ll also learn about concepts like Algae, bryophyte, pteridophyte, gymnosperm, angiosperm, plant life cycles and alternation of generations.

Topics covered in class 11 Biology chapter 3 Plant Kingdom

• Classification of plants into major groups

• Salient and distinguishing features

• examples of Algae, Bryophyta, Pteridophyta, Gymnospermae 

• (Topics excluded – Angiosperms, Plant Life Cycle and Alternation of Generations)

Chapter 4: Animal Kingdom

When we look around us, we see a variety of animals with different morphology and structure. More than a million animal species have been described so far. Therefore, classification has become even more important. Classification aids in assigning a hierarchical status to newly identified species. In this chapter, students will learn about Basis of classification, Classification of animals and more.

Topics covered in class 11 Biology chapter 4 Animal Kingdom

• Salient features and classification of animals

• Non-chordates up to phyla level and chordates up to class level (salient features and at a few examples of each category)

Chapter 5: Morphology of Flowering Plants

In Chapter 2 and Chapter 3, we discussed the classification of plants on the basis of morphological and other properties. In order to successfully classify and comprehend any higher plant or organism (or any living organism for that matter), we must be familiar with the standard technical terminology and definitions. Additionally, we must be aware of the potential variations in various parts, which can be identified as adaptations of the plant to its environment, such as adaptations to different habitats for protection, growth, and storage. The morphology of flowering plants also covers topics such as root, stem, leaf and inflorescence, flower and fruit, seed, and more. Additionally, a semi-technical description is provided of the typical flowering plant, as well as descriptions of some important families.

Topics covered in class 11 Biology chapter 5 Morphology of Flowering Plants

• Root

• Stem

• Leaf

• Inflorescence

• Flower

• Fruit

• Seed

• Semi-technical description of a typical flowering plant

• Solanaceae

Chapter 6: Anatomy of Flowering Plants

In this chapter, we'll look at how higher plants have their internal structure and how they work together. We'll also look at how plants adapt to different environments. We'll also cover topics like 'The Tissues', 'The Tissue System', 'The Anatomy of Different Dicots and Monocots', 'Secondary Growth', and more. All of this is part of the study of plants' internal structure, which is called 'Anatomy'. Plants have cells, which are the basic unit of their structure. Cells are divided into 'Tissues', which are then divided into 'Tissue Systems', which are divided into 'Different Parts of the Plant', and 'Secondary Growth'.

Topics covered in class 11 Biology chapter 5 Morphology of Flowering Plants

• The tissue system

• Anatomy of Dicotyledonous and Monocotyledonous Plants

Chapter 7: Structural Organisation in Animals

In the previous chapters, we encountered a large number of unicellular as well as multicellular organisms in the animal kingdom. Unicellular organisms perform all the basic functions such as digestion, respiration, reproduction, etc. In multicellular animal’s complex body, different groups of cells perform the same basic functions in a well-organized way. All complex animals consist of only four fundamental types of tissues. The basic types of tissues are organised in different locations to form organs such as stomachs, lungs, hearts and kidneys. Students can easily understand the structural organisation of animals and score well on the exam by reference to the solutions on eSaral.

Topics covered in class 11 Biology chapter 7 Morphology of Flowering Plants

• Organ and organ system

• Frogs

Chapter 8: Cell: The Unit of Life

When you look around you, you see living things as well as non-living ones. You must have wondered – what makes an organism alive? Or what does an inanimate object lack that a living thing does? The answer is the fundamental unit of life – a cell in all living things. All living things are made up of cells. Some of us are made up of one cell and call ourselves unicellular organisms, while others, like ourselves, are made up of many cells and call ourselves multicellular organisms.

Topics covered in class 11 Biology chapter 7 Morphology of Flowering Plants

• What is a Cell?

• Cell Theory

• An overview of cell

• Prokaryotic cells

• Eukaryotic cells

Chapter 9: Biomolecules

In this chapter, students will learn how to analyse chemical composition? primary and secondary metabolite, biomacromolecule, proteins, polysaccharides, nucleic acids, structure of proteins, nature of bond linking monomers in polymer, dynamic state of body constituents – concept of metabolism, metabolic basis for living, the living state, enzymes. Students can get a good understanding of these topics by reference to NCERT Solutions for class 11 Biology Chapter 9 biomolecules by eSaral.

Topics covered in class 11 Biology chapter 9 Biomolecules

• How to analyse chemical composition

• Primary and Secondary metabolites

• Biomacromolecules

• Proteins

• Polysaccharides

• Nucleic acids

• Structure of proteins

• Enzymes

Chapter 10: Cell Cycle and Cell Division

In this chapter, students will gain an understanding of the diverse range of living organisms present in the biosphere. Topics covered include How to Analyze Chemical Composition? primary and secondary metabolites, biomacromolecule, proteins, polysaccharides, nucleic acids, structure of proteins, nature of bond linking monomers in a polymer, dynamic state of body constituents – concept of metabolism, metabolic basis for living, the living state, enzymes, and more. Students can gain a better understanding of these topics by referencing the National Council for Research on Entomology and Therapeutics (NCERT Solutions) and BYJU's Biomolecules Chapter 9 of Class 11 Biology.

Topics covered in class 11 Biology chapter 10 cell cycle and cell division

• Cell cycle

• M phase

• Significance of mitosis

• Meiosis

• Significance of meiosis

Chapter 11: Photosynthesis in Higher Plants

All living creatures, including humans, rely on plants for sustenance. Green plants are autotrophs, meaning they produce or synthesize the food they require through photosynthesis. Photosynthesis is a physicochemical process that utilizes light energy to catalyze the synthesis of organic molecules. Photosynthesis is significant in two ways: it forms the foundation for all known human food chains on the planet, and it is responsible for the oxygen release from green plants into the atmosphere. This chapter examines the structure of photosynthetic machinery, as well as the various reactions that convert light into chemical energy.

Topics covered in class 11 Biology chapter 11 Photosynthesis in Higher Plants

• Light reaction

• Electron transport

• The calvin cycle

• Photoresipiration

• Factors affecting photosynthesis

Chapter 12: Respiration in Plants

Cellular respiration is the process of breaking down food inside the cell in order to release energy. The energy is then trapped in the cell where it is used to synthesize ATP. In this chapter, we discuss topics like “Do plants breathe?”, glycolysis and fermentation, aerobic respiration, respiratory balance sheet, amphibolic pathway, and respiratory quantity. Important concepts in this chapter, “Respiration in Plants” are explained in plain language to make it easier for class 11 students.

Topics covered in class 11 Biology chapter 12 Respiration in Plants

• Glycolysis

• Fermentation

• Aerobic Respiration

• The Respiration Balance sheet

• Respiratory quotient 

Chapter 13: Plant Growth and Development

We've already looked at how a flowering plant is organized in Chapter 5. Now, in this chapter, we're going to look at some of the things that control and regulate these development processes. These things are both inside and outside of the plant. There are also subtopics like growth differentials, dendifferentiation and redifferentiation, development, plant growth regulators, photoperiodism, vernalisation and more. Here at eSaral, the faculty have come up with some great ideas for plant growth and development to help students pass their final exam.

Topics covered in class 11 Biology chapter 13 Plant Growth and Development

• Differentiation, Dedifferentiation and Redifferentiation

• Development

• Plant Growth Regulators

Chapter 14: Breathing and Exchange of Gases

As you have already learned, oxygen is used indirectly by organisms to break down small molecules (glucose, amino acid, fatty acid, etc.) to get energy to carry out various tasks. In the above mentioned catabolic reactions, carbon dioxide (which is harmful) is also released. Therefore, it is clear that oxygen must be continuously supplied to the cells, and carbon dioxide generated by the cells must be released. The process of exchanging oxygen from the air with carbon dioxide generated by cells is called respiration. 

Topics covered in class 11 Biology chapter 14 Breathing and Exchange of Gases

• Respiratory Organs

• Mechanism of Breathing 

• Exchange of Gases

• Transport of Gases

• Regulation of Respiration

• Disorders of Respiratory System

Chapter 15: Body Fluids and Circulation

We have learned that all living cells need to be supplied with nutrients, oxygen, and other necessary substances. We have also learned that waste or harmful substances must be eliminated continuously for the proper functioning of tissues.

Blood is the most common body fluid in most higher organisms, including human beings. Another body fluid called lymph also helps in the transportation of certain substances.

In this chapter, we will look at the composition and characteristics of blood and tissue fluid. We will also look at the mechanisms of circulation of blood.

Topics covered in class 11 Biology chapter 15 Body Fluids and Circulation

• Blood

• Lymph (Tissue Fluid)

• Circulatory Pathways

• Double Circulation

• Regulation of Cardiac Activity

• Disorders of Circulatory System

Chapter 16: Excretory Products and Their Elimination

This chapter examines various aspects of the human excretory system, including the formation of urine, the functioning of the tubules, the concentration of the filtrate, the regulation of renal function, the micturition process, the role of other organs in excretion, disorders of the excretory system and more.

Topics covered in class 11 Biology chapter 16 Excretory Products and Their Elimination

• Human Excretory System

• Urine Formation

• Function of the Tubules

• Mechanism of Concentration of the Filtrate

• Regulation of Kidney Function

• Micturition

• Role of other Organs in Excretion

• Disorders of the Excretory System

Chapter 17: Locomotion and Movement

Animals and plants exhibit a variety of voluntary movements known as locomotion. These movements range from walking to climbing, flying, swimming, and more. The structure of locomotory structures does not need to be different from that of other types of movement. The methods of locomotion employed by animals vary depending on their habitat and the requirements of the situation. It is necessary for animals to move in order to find food, find shelter, find a mate, find suitable breeding grounds, maintain a favorable climate, or escape from predators.

Topics covered in class 11 Biology chapter 17 Locomotion and Movement

• Types of movement – ciliary, flagellar, muscular; skeletal muscle, contractile proteins and muscle contraction

• Skeletal system and its functions

• Joints

• Disorders of muscular and skeletal systems – myasthenia gravis, tetany, muscular dystrophy, arthritis, osteoporosis, gout.

Chapter 18: Neural Control and Coordination

The process of coordination involves the coordination and integration of the functions of two or more organs. In the human body, the nervous system and endocrine system work together to coordinate and integrate the activities of each organ in a coordinated manner. This chapter will provide an overview of the human neural system, the mechanisms of neural coordination such as the transmission of nerve impulses and the conduction of impulses across a synapse, as well as the physiological basis of reflex action.

Topics covered in class 11 Biology chapter 18 Neural Control and Coordination

• Neuron and nerves

• Nervous system in humans – central nervous system

• peripheral nervous system and visceral nervous system

• generation and conduction of nerve impulse

Chapter 19: Chemical Coordination and Integration 

We have already learned that the nerve system provides point to point rapid coordination between organs. However, neural coordination is rapid but short-term. Since the nerve fibers don’t innervate every cell in the body and cellular functions need constant control, coordination and integration need to be provided in a special way. Hormones perform this function. The nervous system and endocrine system work together to coordinate and control the body’s physiological functions. Students learn chemical coordination & integration more effectively by referring to NCERT Solutions by eSaral.

Topics covered in class 11 Biology chapter 19 Chemical Coordination and Integration

• Endocrine Glands and Hormones

• Human Endocrine System

• Hormones of Heart, Kidney and Gastrointestinal Tract

• Mechanism of Hormone Action

Benefits of Class 11 Biology NCERT Solutions PDF Download from eSaral

Benefits of Class 11 Biology NCERT Solutions PDF Download from eSaral are mentioned below:

Accurate and Comprehensive: eSaral’s NCERT solutions are based on NCERT official textbooks and cover all chapters and topics of Biology syllabus.

Easily Accessible: eSaral’s NCERT solutions are available in PDF format and can be easily accessed across different devices such as smartphone, tablet, laptop, or desktop computer.

Time-saving: The well-organized solutions save time as students don’t have to search multiple sources for answers. This makes the learning process easier and faster.

Enhanced Understanding: The solutions are designed to enhance the students’ understanding of the concepts. They often contain step by step explanations, diagrams and illustrations to improve understanding.

Practice & Review: The NCERT solutions are a great resource for students to practice and revise. They can be used to solve questions and help students to self-assess and improve their performance.

Preparation of Exam: As the NCERT textbook is the first choice for students when it comes to preparing for board exams.

Support for weaker students: Detailed explanations and examples in solutions can be very useful for students who find certain topics difficult to understand. They can clarify their doubts and gain a better understanding of the subject. 

Supplementary materials: Some platforms such as eSaral may provide additional study materials such as video lectures and quizzes, as well as practice papers alongside the solutions to make the learning experience more engaging and interactive. 

Keep in mind that although NCERT solutions are very useful, it is also important to practice solving various types of questions from different sources to gain a deep knowledge of the subject and to perform well in exams.

Frequently Asked Questions

Question 1: Is it possible to use NCERT Solutions only for competitive exams?

Answer 1:  Yes, NCERT Solutions provides a good starting point for competitive exams. However, competitive exams require more knowledge and practice. To perform well on competitive exams, you need to consult other reference books and study guides as well as previous year’s question papers.

Question 2: How can NCERT solution help me with exam preparation? 

Answer 2: NCERT Solutions are very useful for exam preparation, particularly for board exams. NCERT Solutions provide correct answers to the questions in the textbook, which helps you to comprehend the concepts in detail. Practicing with NCERT Solutions enhances your problem solving skills and helps you to feel more confident for the exams.