NCERT Solutions for Class 11 Biology


NCERT Solutions for Class 11 Biology

NCERT Solutions for Class 11Biology

Class 11 Biology NCERT Solutions

NCERT Solutions for Class 11 Biology includes all the questions provided in NCERT Books for 11th Class Biology Subject. Here all questions are solved with detailed explanation and available for free to check.

Book: National Council of Educational Research and Training (NCERT)
Class: 11th Class
Subject: Biology
Medium: English

NCERT Solutions for Class 11 Biology (Chapter-Wise)

NCERT Solutions for Class 11 Biology are given below for all chapter. Select chapter number to view NCERT Solution chapter wise.

NCERT Solutions Class 11 Biology

NCERT Solutions for Class 11 Biology

Chapter Details & Topics Covered in NCERT Solutions for Class 11 Biology

Chapter 1: The Living World 

This chapter provides an overview of natural flora and animals. The pupils are taught about the concept of living and what it implies. After that, the chapter discusses taxonomic groupings and assistance before introducing students to the crucial topic of genus and species classification. They are led into the intriguing world of living organisms, where they discover previously unknown information about their surroundings and habits. They're also taught about biodiversity and why preserving it is so important. In this day and age, all youngsters must have this virtue, and this chapter ensures that it is taught in them.

Chapter 2: Biological Classification

This chapter delves deeper into a biological classification for the student. The classification of the five kingdoms is explained in a simple and straightforward manner. Kingdoms addressed in this chapter include Kingdom Monera, Kingdom Protista, Kingdom Fungi, Kingdom Plantae, and Kingdom Animalia. Students will also look at how experts like Aristotle and Linnaeus used previous classification systems, as well as how the system has evolved through time.

Chapter 3: Plant Kingdom

The students dig into the specifics of the world as it has been categorised thus far in this chapter. They investigate the further classification of the plant kingdom in order to make it easier to study. Throughout this topic, they are exposed to new terms such as Gymnosperms, Angiosperms, and so on. They also learn about the life cycle of plants and how the plant generations change. Students will have a solid grasp of the natural habitat, characteristics, and physiology of the complex organisms known as plants by the end of this chapter.

Chapter 4: Animal Kingdom

The most important kingdom, Animalia, is the subject of this chapter. Despite their differences in shape and structure, they all have some features that let us categorise them efficiently. The phyla Porifera, Coelenterata (Cnidaria), Ctenophora, Platyhelminthes, Aschelminthes, Annelida, Arthropoda, Mollusca, Echinodermata, Hemichordata, and Chordata will be studied thoroughly in this chapter. The strategies used by animals to survive, as well as their physiology, habitat, and anatomy, are all examined in depth. Unit 1, Diversity in Living Organisms, comes to an end with this chapter. This chapter has a 14 percent weightage in the NEET test and a 7-point weighting in the final exam, making it quite important from the point of view of exams. 

Chapter 5: Morphology of Flowering Plants

Any serious attempt to categorise and observe any higher plant (or, in the case of living organisms, any living being) needs familiarity with conventional technical nomenclature and definitions. We must also examine variations in other components found as plant adaptations to their environment, such as adaptations to varied habitats, for protection, climbing, and storage. This chapter also covers the root, stem, leaf, inflorescence, flower, fruit, and seed, as well as a semi-technical description of a typical blooming plant and many important plant families.

Chapter 6: Anatomy of Flowering Plants

This chapter discusses the internal structure and functional connections of higher plants. Plants have cells as their basic building blocks, and these cells are organised into tissues, which are organised into various sections of the plant. Within angiosperms, monocots and dicots are physically different. Internal structures, like external structures, vary in reaction to various conditions. The Tissues, The Tissue System, Anatomy of Dicotyledonous and Monocotyledonous Plants, Secondary Growth, and so on are all covered in this chapter.

Chapter 7: Structural Organisation in Animals

Students have previously investigated a variety of unicellular and multicellular biological creatures. They will study that  Multicellular creatures, unlike unicellular organisms, have tissues with well-organized cells that execute a variety of functions.  Earthworms, cockroaches, and frogs are studied in terms of their morphology and anatomy. This concludes Unit 2, Structural Organization in Plants and Animals, which is worth 5% of your NEET score and 12 points in the final Biology exam.

Chapter 8: Cell the Unit of Life

The whole discipline of biology is based on cell theory. This chapter instructs students on important topics,  Prokaryotic and Eukaryotic cells are discussed in this chapter. The membrane-bound and non-membrane-bound organelles that make up a cell are taught to the students. They also learn about their structure and function with the help of insightful pictures. The students also learn about the many biologists who have made major contributions to the field.

Chapter 9: Biomolecules

Students will learn about biomolecules, their roles and structures, and why they are important in this chapter through this chapter. They'll look at metabolites and biomacromolecules like proteins and enzymes. They'll discover the critical role enzymes play in biological processes.

Chapter 10: Cell Cycle and Cell Division

The basic building elements of life are cells. It is important to comprehend them in order to comprehend a range of other biological issues. This chapter introduces the student to the fundamental principles of the cell cycle and cell division. After studying this chapter, they will be aware of the differences between meiosis and mitosis, as well as their significance. They study the stages of the cell cycle such as Interphase, Prophase, Metaphase, Anaphase, Telophase, and Cytokinesis. With this chapter, Unit 3: Cell Structure and Functions comes to a conclusion. It is worth 9% of the NEET score and 15 points in the final exam.

Chapter 11: Transport in Plants

Plants, unlike humans, do not have the ability to move, therefore they must rely on the soil for nutrition and their roots to absorb it. Plants have acquired a sophisticated transportation system that includes Xylem and Phloem as a result. Imbibing, plasmolysis, and osmosis are among the topics covered in this chapter. Among other things, students learn about active transportation and transpiration. For a better understanding of this chapter, see the NCERT Biology Class 11 PDF. 

Chapter 12: Mineral Nutrition

This chapter teaches students how to identify the numerous minerals necessary for a plant's development and function. They investigate what defines a mineral as essential, as well as its route of transport and absorption. They also learn about the symptoms of mineral deficiency, which indicate a lack of certain minerals, providing them with a more holistic view of this topic. They'll also learn about nitrogen fixation and why it's important.

Chapter 13: Photosynthesis in Higher Plants

Plants are the only food supply for all living organisms, including humans. Green plants, often known as autotrophs, use photosynthesis to create or prepare the food they require. In green plants, photosynthesis is a physicochemical cycle in which light energy is utilised to promote the mixing of organic compounds. Photosynthesis is important for two reasons: it moulds and creates the basis for all realised food chains on the planet. This chapter covers the design of photosynthetic mechanisms as well as the many processes that transform light energy into chemical energy.

 Chapter 14: Respiration in Plants

Students have already learned that plants perform two primary functions: photosynthesis and respiration, up to this point. The students are exposed to the latter in this chapter through this chapter. Some of the new terminology and ideas they will encounter are aerobic and anaerobic respiration, glycolysis, fermentation, the electron transport system, and the tricarboxylic acid cycle.

Chapter 15: Plant Growth and Development

In this chapter, students will reflect on the various internal and external factors that impact a plant's growth and development. Plant development phases, growth regulators, differentiation, dedifferentiation, redifferentiation, Vernalization, and seed dormancy will all be explored. Plant hormones and their involvement in plant growth and development are also covered. With this chapter, Unit 4: Plant Physiology comes to a conclusion. It is worth 18 points in the final Biology exam and has a 6% weightage in NEET.

Chapter 16: Digestion and Absorption

This chapter teaches students human physiology and assists them in comprehending how their own bodies function. This chapter focuses mostly on food digestion and absorption. Digestive system disorders are also briefly discussed. The chapter also goes over the many nutritional components that are essential in our daily diet, as well as the problems that might arise if we don't get enough of them.

Chapter 17: Breathing and Exchange of Gases

This chapter introduces students to the concept of breathing and explains the distinctions between it and respiration. This chapter focuses on the respiratory system and the organs that make it up. The movement and exchange of gases such as oxygen and carbon dioxide are discussed in detail. Additionally, the students are educated about a variety of common respiratory diseases as well as their causes.

Chapter 18: Body Fluids and Circulation

As previously discussed in earlier chapters, all live cells require nutrition, oxygen, and other essential components. Furthermore, in order for tissues to function correctly, waste or dangerous substances must be eliminated on a regular basis. In the great majority of higher animals, including humans, blood is the most often utilised body fluid. Another body fluid, lymph, also assists in the transport of certain compounds. The organisation and properties of blood and lymph (tissue fluids), as well as the mechanism of blood dispersion, will be discussed in this chapter.

Chapter 19: Excretory Products and their Elimination

Given that the students had just dealt with gaseous waste in the previous chapter, it's only natural that they'd be curious about the elimination of solid and liquid waste produced by metabolic processes or excessive intake. As a result, the excretory system in humans is the subject of this chapter. Students learn about the many components of the excretory system, including the auxiliary organs. They study the process of urine generation and kidney function regulation, as well as numerous kidney diseases.

Chapter 20: Locomotion and Movement

Movement is one of the most important features of living creatures. Animals and plants may move in a number of different ways. Such voluntary motions are referred to as locomotion. Strolling, sprinting, climbing, flying, and swimming are all examples of locomotor activity. Structures controlling locomotion do not need to be distinguishable from those affecting other forms of motion. Animals' movement methods change as their habitats and situations change. Food, cover, a mating partner, ideal breeding grounds, perfect climatic conditions, and avoiding hunters are only a few of the causes for locomotion.

Chapter 21: Neural Control and Coordination

We discover in this chapter that coordination is the mechanism through which at least two organs interact and augment each other's components. Our body's neurological and endocrine frameworks work together to coordinate and incorporate all organ processes so that they all run smoothly. This chapter covers human brain architecture, neural coordinating tools such as nerve impulse transmission, impulse conduction across a synapse, and the physiology of reflex response.

Chapter 22: Chemical Coordination and integration

The endocrine and exocrine glands that reside in organisms are discussed in this chapter. The human endocrine system, the hormones it produces, their actions, and illnesses caused by excess or lack of these hormones are all given specific consideration. The mechanism of hormone action, as well as the feedback mechanism that governs hormone production, are taught to students. Unit 5, Human Physiology, comes to an end with this chapter. It has a 20 per cent weightage in NEET and 18 points in the final exam.

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