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NCERT Solutions for Class 11 Biology 2021-22 [Updated] | CBSE Notes

NCERT Solutions for Class 11 Biology 2021-22

NCERT Solutions for Class 11 Biology: Biology is a challenging subject. Most students, however, can achieve good grades with the correct method and mindset. If a kid is in Class 11, though, he or she will need to do a lot more.

NCERT Solutions Class 11 Biology is one of the greatest study resources for students preparing for exams. It answers all of the crucial questions in detail. Furthermore, all solutions are presented straightforwardly. The NCERT Solutions are available in PDF format, so students may easily access them. The professors create solutions that are easy to understand to help students prepare for exams. They typically assist students in identifying and correcting areas of weakness in order to improve their grades. Students will be able to answer all of the questions from the NCERT Textbook utilizing these solutions.

NCERT Chapter Wise Solutions Class 11 Biology

Table of Contents

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

This chapter gives an overview of the natural world’s vegetation and fauna. The concept of living and what it entails is taught to the students. The chapter then moves on to taxonomic categories and help before introducing students to genus and species classification, which is a fundamental topic.

Topic Covered in The Living World
1 The Living World
1.1 What is ‘Living’?
1.2 Diversity in the Living World
1.3 Taxonomic Categories
1.4 Taxonomical Aids
1.5 Summary

NCERT Solutions for Class 11 Biology Chapter 2: Biological Classification

For the learner, this chapter looks deeper into a biological classification. The five kingdoms are classified in a basic and easy-to-understand manner. Kingdom Monera, Kingdom Protista, Kingdom Fungi, Kingdom Plantae, and Kingdom Animalia are among the kingdoms discussed in this chapter. Students will also examine how past classification systems were employed by professionals such as Aristotle and Linnaeus, as well as how the system has developed over time.

Topic Covered in Biological Classification
2 Biological Classification
2.1 Kingdom Monera
2.2 Kingdom Protista
2.3 Kingdom Fungi
2.4 Kingdom Plantae
2.5 Kingdom Animalia
2.6 Viruses, Viroids, and Lichens
2.7 Summary

NCERT Solutions for Class 11 Biology Chapter 3: Plant Kingdom

They are introduced to new terms such as Gymnosperms, Angiosperms, and so on throughout this topic. They also learn about the plant life cycle and how generations of plants change. By the end of this chapter, students will have a thorough understanding of the natural habitat, traits, and physiology of the complex organisms known as plants.

Topic Covered in the Plant Kingdom

3.1 Algae
3.2 Bryophytes
3.3 Pteridophytes
3.4 Gymnosperms
3.5 Angiosperms
3.6 Plant Life Cycles and Alternation of Generations
3.7 Summary

NCERT Solutions for Class 11 Biology Chapter 4: Animal Kingdom

This chapter focuses on Animalia, the most significant kingdom. Despite their diversity in shape and structure, they all share some characteristics that enable us to classify them effectively. This chapter will cover the phyla Porifera, Coelenterata (Cnidaria), Ctenophora, Platyhelminthes, Aschelminthes, Annelida, Arthropoda, Mollusca, Echinodermata, Hemichordata, and Chordata. Animal survival tactics, as well as their physiology, habitat, and anatomy, are all thoroughly investigated.

Topics and Subtopics in NCERT Solutions for Class 11 Biology Chapter 4 Animal Kingdom:

4 Animal Kingdom
4.1 Basis of Classification
4.2 Classification of Animals
4.3 Summary

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

The root, stem, leaf, inflorescence, flower, fruit, and seed are all covered in this chapter, as well as a semi-technical description of a typical flowering plant and several major plant families.

Topics and Subtopics in NCERT Solutions for Class 11 Biology Chapter 5 Morphology of Flowering Plants:

5.1 The Root
5.2 The Stem
5.3 The Leaf
5.4 The Inflorescence
5.5 The Flower
5.6 The Fruit
5.7 The Seed
5.8 Semi-technical Description of a Typical Flowering Plant
5.9 Description of Some Important Families
5.10 Summary

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

This chapter covers the tissues, the tissue system, the anatomy of dicotyledonous and monocotyledonous plants, secondary growth, and so on.

Topics and Subtopics in NCERT Solutions for Class 11 Biology Chapter 6 Anatomy of Flowering Plants:

6.1 The Tissues
6.2 The Tissue System
6.3 Anatomy of Dicotyledonous and Monocotyledonous Plants
6.4 Secondary Growth
6.5 Summary

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

Students have studied a range of unicellular and multicellular biological entities in the past. They will investigate the fact that, unlike unicellular organisms, multicellular beings have tissues with well-organized cells that perform a variety of activities. The morphology and anatomy of earthworms, cockroaches, and frogs are taught in this chapter.

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

7.1 Animal Tissues
7.2 Organ and Organ System
7.3 Earthworm
7.4 Cockroach
7.5 Frogs
7.6 Summary

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

Prokaryotic and Eukaryotic cells are discussed in this chapter, which informs students on crucial subjects. Students are educated about the membrane-bound and non-membrane-bound organelles that make up a cell. With the help of informative graphics, they also learn about their structure and function. Students also learn about the numerous biologists who have contributed significantly to the field.

Topics and Subtopics in NCERT Solutions for Class 11 Biology Chapter 8 Cell The Unit of Life:

8.1 What is a Cell?
8.2 Cell Theory
8.3 An Overview of Cell
8.4 Prokaryotic Cells
8.5 Eukaryotic Cells
8.6 Summary

NCERT Solutions for Class 11 Biology Chapter 9: Biomolecules

In this chapter, students will learn about biomolecules, their functions and structures, and why they are vital. Metabolites and biomacromolecules such as proteins and enzymes will be taught.

Topics and Subtopics in NCERT Solutions for Class 11 Biology Chapter 9 Biomolecules:

9.1 How to Analyse Chemical Composition?
9.2 Primary and Secondary Metabolites
9.3 Biomacromolecules
9.4 Proteins
9.5 Polysaccharides
9.6 Nucleic Acids
9.7 Structure of Proteins
9.8 Nature of Bond Linking Monomers in a Polymer
9.9 Dynamic State of Body Constituents – Concept of Metabolism
9.10 Metabolic Basis for Living
9.11 The Living State
9.12 Enzymes
9.13 Summary

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

Cells are the basic building blocks of life. It’s crucial to understand them to understand a variety of other biological difficulties. The essential principles of the cell cycle and cell division are covered in this chapter. They will understand the differences between meiosis and mitosis, as well as their significance, after reading this chapter. Interphase, Prophase, Metaphase, Anaphase, Telophase, and Cytokinesis are all stages of the cell cycle that they examine.

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

10.1 Cell Cycle
10.2 M Phase
10.3 Significance of Mitosis
10.4 Meiosis
10.5 Significance of Meiosis
10.6 Summary

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

Students learn about active transportation and transpiration, among other things. See the NCERT Biology Class 11 PDF for a better understanding of this chapter.

Topics and Subtopics in NCERT Solutions for Class 11 Biology Chapter 11 Transport in Plants:

11.1 Means of Transport
11.2 Plant-Water Relations
11.3 Long Distance Transport of Water
11.4 Transpiration
11.5 Uptake and Transport of Mineral Nutrients
11.6 Phloem Transport: Flow from Source to Sink
11.7 Summary

NCERT Solutions for Class 11 Biology Chapter 12: Mineral Nutrition

This chapter teaches students how to recognize the various minerals required for a plant’s growth and function. They look into what makes a mineral necessary, as well as how it is transported and absorbed. They also learn about the signs and symptoms of mineral deficiency, which indicate a lack of specific minerals, giving them a more comprehensive understanding of the subject. They’ll also discover the importance of nitrogen fixation.

Topics and Subtopics in NCERT Solutions for Class 11 Biology Chapter 12 Mineral Nutrition:

12.1 Methods to Study the Mineral Requirements of Plants
12.2 Essential Mineral Elements
12.3 Mechanism of Absorption of Elements
12.4 Translocation of Solutes
12.5 Soil as Reservoir of Essential Elements
12.6 Metabolism of Nitrogen
12.7 Summary

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

All living species, including humans, rely on plants as their sole source of nutrition. Green plants, often known as autotrophs, rely on photosynthesis to produce or prepare their food. The design of photosynthetic mechanisms, as well as the numerous processes that convert light energy into chemical energy, are covered in this chapter.

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

13.1 What do we Know?
13.2 Early Experiments
13.3 Where does Photosynthesis take place?
13.4 How many Pigments are involved in Photosynthesis?
13.5 What is Light Reaction?
13.6 The Electron Transport
13.7 Where are the ATP and NADPH Used?
13.8 The C4 Pathway
13.9 Photorespiration
13.10 Factors affecting Photosynthesis
13.11 Summary

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

Up to this point, students have learned that plants conduct two major functions: photosynthesis and respiration. The students are introduced to the latter in this chapter. Aerobic and anaerobic respiration, glycolysis, fermentation, the electron transport system, and the tricarboxylic acid cycle are some of the new terms and concepts they will discover.

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

14.1 Do Plants Breathe?
14.2 Glycolysis
14.3 Fermentation
14.4 Aerobic Respiration
14.5 The Respiratory Balance Sheet
14.6 Amphibolic Pathway
14.7 Respiratory Quotient
14.8 Summary

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

Students will consider the numerous internal and external variables that influence a plant’s growth and development in this chapter. Differentiation, dedifferentiation, redifferentiation, Vernalization, and seed dormancy will all be taught. Plant hormones are also discussed, as well as their role in plant growth and development.

Topics and Subtopics in NCERT Solutions for Class 11 Biology Chapter 15 Plant Growth and Development

15.1 Growth
15.2 Differentiation, Dedifferentiation, and Redifferentiation
15.3 Development
15.4 Plant Growth Regulators
15.5 Photoperiodism
15.6 Vernalisation
15.7 Summary

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

This chapter teaches students about human physiology and helps them understand how their bodies work. This chapter is primarily concerned with food digestion and absorption. Disorders of the digestive system are also briefly discussed. The chapter also discusses the various nutritional components that are required in our daily diet, as well as the difficulties that might emerge if we don’t obtain enough of them.

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

16.1 Digestive System
16.2 Digestion of Food
16.3 Absorption of Digested Products
16.4 Disorders of Digestive System
16.5 Summary

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

This chapter examines the differences between breathing and respiration and introduces students to the notion of breathing. The respiratory system and the organs that make it up are the subjects of this chapter. The flow and exchange of gases like oxygen and carbon dioxide are thoroughly covered. Students are also taught about many common respiratory disorders, as well as their causes.

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

17.1 Respiratory Organs
17.2 Mechanism of Breathing
17.3 Exchange of Gases
17.4 Transport of Gases
17.5 Regulation of Respiration
17.6 Disorders of Respiratory System
17.7 Summary

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

This chapter will cover the structure and properties of blood and lymph (tissue fluids), as well as the mechanism of blood dispersion.

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

18.1 Blood
18.2 Lymph (Tissue Fluid)
18.3 Circulatory Pathways
18.4 Double Circulation
18.5 Regulation of Cardiac Activity
18.6 Disorders of Circulatory System
18.7 Summary

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

Students learn about the excretory system’s many components, including the auxiliary organs. They look into the process of urine production, kidney function management, and a variety of renal illnesses.

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

19 Excretory Products and their Elimination
19.1 Human Excretory System
19.2 Urine Formation
19.3 Function of the Tubules
19.4 Mechanism of Concentration of the Filtrate
19.5 Regulation of Kidney Function
19.6 Micturition
19.7 Role of other Organs in Excretion
19.8 Disorders of the Excretory System
19.9 Summary

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

This chapter discusses the ability to live creatures to move. Animals and plants are capable of moving in a variety of ways. Locomotion is the term for such voluntary movements. Locomotor activity includes walking, sprinting, climbing, flying, and swimming. The structures that govern locomotion do not need to be distinguished from those that control other types of movement. As their environments and circumstances change, animals’ migratory patterns vary as well. Food, cover, a mate, optimum breeding grounds, ideal climatic conditions, and avoiding hunters are just a few of the reasons that animals move.

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

20.1 Types of Movement
20.2 Muscle
20.3 Skeletal System
20.4 Joints
20.5 Disorders of Muscular and Skeletal System
20.1 Summary

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

The physiology of reflex reaction is covered in this chapter, as well as human brain architecture and neural coordinating tools such as nerve impulse transmission and impulse conduction across a synapse.

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

21.1 Neural System
21.2 Human Neural System
21.3 Neuron as Structural and Functional Unit of Neural System
21.4 Central Neural System
21.5 Reflex Action and Reflex Arc
21.6 Sensory Reception and Processing
21.7 Summary

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

This chapter covers the endocrine and exocrine glands found in living creatures. The human endocrine system, the hormones it generates, its functions, and diseases caused by too much or too little of these hormones are all discussed in detail. Students are taught the mechanism of hormone action as well as the feedback mechanism that governs hormone production.

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

22.1 Endocrine Glands and Hormones
22.2 Human Endocrine System
22.3 Hormones of Heart, Kidney and Gastrointestinal Tract
22.4 Mechanism of Hormone Action
22.5 Summary


Term I and II CBSE Class 11 Biology Syllabus Course Structure 2021-22

UnitsTerm – IMarks
IDiversity of Living Organisms: Chapter – 1, 2, 3 and 415
IIStructural Organization in Plants and Animals: Chapter – 5 and 708
IIICell: Structure and Function: Chapter – 8 and 912
UnitsTerm – IIMarks
IVCell: Structure and Function: Chapter – 1005
VPlant Physiology: Chapter – 13, 14 and 1512
VIHuman Physiology: Chapter –17, 18, 19, 20, 21 and 2218
Total Theory (Term – I and Term – II)70
Practicals Term – I 15
Practicals Term – II 15
Total100

Robin Singh

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