CBSE NCERT Solutions For Class 12 Biology PDF – In this article, we will provide you with detailed NCERT Solutions for Class 12 Biology. Working on CBSE NCERT Solutions for Class 12 Biology will help students understand the various concepts and topics in this chapter better. The Class 12 Biology NCERT Solutions provided here have been designed by experienced scholars. Every solution is presented in a step-by-step and simple manner which can be easily revised.
We have also provided the CBSE NCERT Solutions for Class 12 Biology in PDF format which can also be downloaded for free. Practicing Class 12 Biology NCERT Solutions will help students an idea about how questions of higher level asked in exams like NEET, AIIMS, JIPMER are to be solved. Also, students can find detailed explanations of each and every question. These solutions will help students in both their board exams as well as in medical entrance exams. Read on to download CBSE NCERT Solutions for Class 12 Biology.
CBSE NCERT Solutions For Class 12 Biology PDF
Students must go through CBSE NCERT Solutions for Class 12 Biology to learn the strategy on how to solve a question. So in order to help you with that, we have listed down the Class 12 Chapter-wise Biology NCERT Solutions. Click on the direct links to know more.
- Chapter 1 – Reproduction in Organisms
- Chapter 2 – Sexual Reproduction in Flowering Plants
- Chapter 3 – Human Reproduction
- Chapter 4 – Reproductive Health
- Chapter 5 – Principles of Inheritance and Variation
- Chapter 6 – Molecular Basis of Inheritance
- Chapter 7 – Evolution
- Chapter 8 – Human Health and Disease
- Chapter 9 – Strategies for Enhancement in Food Production
- Chapter 10 – Microbes in Human Welfare
- Chapter 11 – Biotechnology: Principles and Processes
- Chapter 12 – Biotechnology and its Applications
- Chapter 13 – Organisms and Populations
- Chapter 14 – Ecosystem
- Chapter 15 – Biodiversity and Conservation
- Chapter 16 – Environmental Issues
CBSE NCERT Solutions For Class 12 Biology – Advantages
The advantages of solving CBSE NCERT Solutions for Class 12 Biology from this page are listed below:
- All the solutions are solved in easily understandable language so everyone can access it.
- The solutions provided in this page are solved by subject matter of Embibe.
- Each and every question is being solved based on the CBSE NCERT guidelines so that students can refer to these solutions for their board exam preparation.
- Each and every question comes with detailed step by step solution to help students to understand the concepts better.
- The solutions will not only help students in their board exam preparation but also helps to clear the competitive exams like NEET, AIIMS, and JIPMER.
About CBSE NCERT Solutions For Class 12 Biology
Chapter 1 Reproduction in Organisms: Reproduction is an essential process without which species cannot survive for long. And in order to produce a progeny, each organism will go under have to reproduce sexually or asexually. This is the first chapter in CBSE NCERT Class 12 Biology that holds great importance in the existence of life. Learners will understand the difference between asexual and sexual means of reproduction. Reproduction in Organisms is a vast chapter that deals with various types of reproduction. Students will be able to differentiate between sexual & asexual methods, zoospore & zygote and more terms for better understanding. The best way to score well in this chapter is by understanding each and every concept.
Chapter 2 Reproduction in Flowering Plants: We all have a bond with the flowers as they are the objects of aesthetic, ornamental, social, religious and cultural value. They also have always been used as symbols for conveying important human feelings such as love, affection, happiness, grief, mourning, etc. But did you know that the flowers are the seat for sexual reproduction in plants (Angiosperms)? Or did you know that the myriads of flowers, the scents, and the rich colors are just an aid to sexual reproduction? This chapter will take you through the internal parts of a flower and how each part plays a vital role in sexual reproduction. CBSE Class 12 Biology will also give you a look at the diversity of structures of the inflorescences that ensures the formation of the end products of sexual reproduction in plants such as the fruits, and seeds.
Chapter 3 Human Reproduction: After the first two important reproduction chapters, you will now be able to examine the human reproductive systems both in male a female. This chapter will help you understand the changes that occur in human beings after the puberty and cease of ovum formation in women around the age of fifty years. Moreover, this chapter will give you a close look at the internal male and female reproductive parts with the remarkable differences between them. Having good knowledge in this chapter will help you score well in the Class 12 exam as the most important questions in NEET, AIIMS or state level medical entrance exams are basically from Human Reproduction Chapter.
Chapter 4 Reproductive Health: This chapter has a broader perspective that includes the emotional and social aspects of reproduction along with the healthy reproduction itself. Basically, reproductive health refers to total well-being in all aspects of reproduction such as physical, emotional, behavioral and social. Through this chapter, you will learn that India was amongst the first countries in the world to initiate action programs at a national level to attain total reproductive health as a social goal. Counseling and creating awareness regarding adolescence and associated changes, safe and hygienic sexual practices, sexually transmitted diseases, etc., are few of the practices in reproductive health. Through the NCERT Solutions for Class 12 Biology Chapter Reproductive Health, you will get a deeper understanding of the general aspects of reproduction.
Chapter 5 Principles of Inheritance and Variation: This chapter will give you a deeper knowledge of the term “Gene” and several related questions of a branch of biology known as Genetics. This chapter deals with mainly the inheritance and the role of genes in differentiating the offsprings of particular species. Also, you will also learn the definitions for the two most important terms in this chapter ie., inheritance as the basis of heredity and variation as the degree by which progeny differ from their parents. You will also come across a few crucial laws of inheritance such as Law of Dominance, Mendel Law, etc. This is one of the interesting chapters in Class 12 Biology.
Chapter 6 Molecular Basis of Inheritance: This chapter will introduce to the Deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), the two types of nucleic acids found in living systems. n Class XI you must have learned the structures of nucleotides. DNA is a long polymer of deoxyribonucleotides. The length of DNA is usually defined as the number of nucleotides present in it. This chapter will help you identify the differences between RNA and DNA along with its detailed structure. For a better understanding of the concepts related to DNA and RNA, ensure your basics from Class 9 are strong so that you go with the flow of this Molecular Basis of Inheritance chapter.
Chapter 7 Evolution: This can be one of the most interesting chapters of Class 12 Biology if you want to find the answers to the origin of life. The origin of life is considered a unique event in the history of the universe. In fact, the universe is very old – almost 20 billion years old. And about 2000 million years ago, the first cellular forms of life appeared on earth. There a lot of interesting theories and mythologies on how life originated on earth. Check them out and find answers using our NCERT Solutions for Class 12 Biology.
Chapter 8 Human Health and Disease: Did you know that health does not constitute just the state of the body but the mind too? Health, in general, is a state of complete physical, mental and social well-being. This chapter will shed light on areas of genetic disorders, infections, the lifestyle of a human being, etc. Every day we are exposed to a large number of infectious agents. However, only a few of these exposures result in disease due to the lack of immunity. Here you will learn the concepts of immunity, allergies in detail. You will also learn some cool public health measure that can safeguard you against infectious diseases.
Chapter 9 Strategies for Enhancement in Food Production: With an ever-increasing population of the world, enhancement of food production is a major necessity. This chapter deals with the concepts related to food production organically. You will also come across the sub-chapters such as animal husbandry, plant breeding, single-celled proteins, and tissue culture. Under animal husbandry, you will learn about fisheries, beekeeping, etc. You will also learn apiculture and its importance in food production.
Chapter 10 Microbes in Human Welfare: Microbes are the organisms like bacteria and many fungi can be grown on nutritive media to form colonies that can be seen with the naked eyes. With this chapter, you will come across some surprising facts such as curd production from milk with the help of microbes. It is not just the curd production, many of the beverages are produced with a process called fermentation. While discussing the good side of Microbe utilization, this chapter will also take you to the disadvantages part that is the cause of pollution.
Chapter 11 Biotechnology: Principles and Processes – In this chapter, learners will get to know how Biotechnology deals with large scale production and marketing of products and processes using live organisms, cells or enzymes. Also, students will know about the recombinant proteins that are used in medical practice. Students will also be educated on obtaining the foreign gene product as well as on cloning Vectors.
About Chapter 12 Biotechnology and its Applications – This chapter will teach the students about how Biotechnology has given to humans various useful products by using plant, microbes, animals, and their metabolic machinery. Biotechnology has also given rise to Genetically Modifies Organisms that have been created by using methods other than natural methods so as to transfer one or more genes from one organism to another, using techniques such as recombinant DNA technology. Students will also get to know that transgenic animals are also used to understand how genes contribute to the development of a disease by serving as models for human diseased.
About Chapter 13 Organism and Population – Ecology is the study of the interactions between the organism and its abiotic environment. It mainly deals with four levels of the biological organization namely; Organism, Populations, Communities, and Biomes. The environment in which we all are living is composed of both abiotic and biotic components. Water, Light, Temperature, and Soil, are the key components of the environment. Biotic components comprise all the living organisms within an ecosystem which includes plants, animals, birds, insects, bacteria, fungi and more. Abiotic components comprise of all the non-living things in an ecosystem and it includes sunlight, temperature atmospheric gases, water, and soil.
About Chapter 14 Ecosystem – The ecosystem is a biological community of all the living things which includes plants, animals, birds and other living organisms interacting with each other and with their nonliving components in a particular region. The non-living components include atmosphere, earth, climate, sun, soil, and the weather. Overall, the ecosystem relates all the organisms to live in close proximity and to interact with each other. It is the network of interactions between and among organisms, and their environment. Ecosystems consist of creatures that mutually benefit from each other. Students will learn about the Ecosystem in detail in Chapter 14.
About Chapter 15 Biodiversity and Its Conservation – When a single species shows high diversity at the genetic level it is called genetic diversity. When the diversity is at species level it is called as species diversity. Ecosystem-level diversity is called as ecological diversity. Global diversity is divided into Plants, Vertebrates, and Invertebrates. This was brief on Biodiversity and its Conservation. In this chapter, students will learn about what is Biodiversity, Patterns of biodiversity, Causes of loss of biodiversity, biodiversity conservation.
About Chapter 16 Environmental Issues – Major issues relating to environmental pollution and depletion of valuable natural resources vary in dimension from local, regional to global levels. Air pollution causes because of the burning of fossil fuel, e.g., coal and petroleum, in industries and in automobiles. They are harmful to humans, animals, and plants, and therefore must be removed to keep our air clean. There are two major types of environmental issues – increasing of greenhouse effect which is warming earth and depletion of ozone in the stratosphere. In this chapter, students will learn details about Air Pollution and Its Control, Water Pollution and Its Control, Solid Wastes, Agrochemicals, and their Effects, Radioactive Wastes, Greenhouse Effect and Global Warming, Ozone Depletion in the Stratosphere, Degradation by Improper Resource Utilisation and Maintenance, Deforestation.
These resources will be extremely useful in your CBSE Class 12 preparation as well as various medical entrance exams. Make the best use of these resources and secure a very high score in your Class 12 board exams and other exams.
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