Tamil Nadu HSC Board Class 12 Biology Syllabus – Latest 2022-2023
Biology is considered a very important subject in the Science stream, and it needs to be learned in detail at the Class 12 level. Students who want to pursue careers in fields such as neuroscience, microbiology, food technology, etc., should focus more on the subject. Students of the Board of Higher Secondary Education, Tamil Nadu, need to be well-prepared in each subject to score higher marks.
All the concepts covered in Biology are to be revised regularly for preparation from the exam perspective. Students are expected to get used to solving exercise questions regularly and enhance their exam preparation. After gaining a thorough understanding of the concepts, students are required to understand the weaker and stronger areas in the Tamil Nadu Class 12 Biology syllabus and maintain a track record of performance.
Students are expected to make use of the Tamil Nadu Class 12 Biology syllabus to become familiar with the topics to be covered for Biology Class 12 Tamil Nadu State Board Examination. They are advised to solve the Tamil Nadu Sample Question Paper and Tamil Nadu Previous Year Question Paper to get an idea of the types of questions that have been asked in the Biology board examination.
Tamil Nadu Board (TN HSC) Biology Syllabus for Class 12 – Free PDF Download
Class 12 Tamil Nadu State Board students can access the latest Tamil Nadu Class 12 Biology syllabus from the Extramarks website and mobile application. The latest Tamil Nadu Class 12 Biology syllabus is available in PDF format and can be downloaded for offline viewing.
Tamil Nadu Board (TN HSC) Biology Latest Syllabus for Class 12
When preparing for a subject like Biology, it is essential to become well-versed with all the topics covered under the Tamil Nadu Class 12 Biology syllabus. Students can access the latest Tamil Nadu Class 12 Biology syllabus from the Extramarks website and mobile application. It is important to make changes in existing study plans to deal with the issues that students face during their learning process. Revising the topics given in the Tamil Nadu Class 12 Biology syllabus is essential for self-evaluation and tracking the preparation level in the subject of Biology. Students must learn all the topics given in the Tamil Nadu Class 12 Biology syllabus with diagrams and tables. Biology deals with the study of living organisms. The various body functions and systems of living organisms are studied in detail and students need to develop an interest in these chapters. The concepts covered in the Tamil Nadu Class 12 Biology syllabus are to be revised from time to time with the help of the Tamil Nadu Sample Question Paper and Tamil Nadu Previous Year Question Paper. Practising these biological concepts by writing answers has proven to be a very effective technique to study a subject like Biology.
Students need to study well before their board examination in order to score higher marks in the Biology exam. All the textbook questions are to be practised daily with the help of notes. It is important to learn the topics according to the syllabus to learn things from an exam perspective. Biology teachers advise students to get done with the syllabus content a couple of months before the exam so that there is enough time left for revision. Biology is an important subject at the Class 12 level and students that wish to pursue careers in fields like medical, microbiology, biotechnology, etc., need to focus more on the subject.
Students are advised to solve the Tamil Nadu Sample Question Paper and Tamil Nadu Previous Year Question Paper regularly and make their study of Biology strong and effective.
Practising past years’ question papers is helpful in building the confidence of students in Biology. Practising past years’ question papers will give them an insight into the paper pattern and marks distribution in the Biology exam, and they will be able to plan their studies accordingly.
Past years’ question papers consist of all the topics given in the Tamil Nadu Class 12 Biology syllabus. It is essential to solve past years’ question papers and sample question papers in order to learn how to manage time in the exams.
The Extramarks website and mobile application is the best place to access the latest Tamil Nadu Class 12 Biology syllabus. Students are advised to go through the syllabus before starting their preparations.
Tamil Nadu Board HSC Class 12 Biology Syllabus 2022-23
Biology concepts are to be revised according to the Tamil Nadu Class 12 Biology syllabus. Class 12 students of the Tamil Nadu State Board can devise a course of action for each topic after having an overview of the Tamil Nadu Class 12 Biology syllabus.
To access the latest Tamil Nadu Class 12 Biology syllabus, students can refer to Extramarks website and mobile application. Apart from the Tamil Nadu Class 12 Biology syllabus, students are advised to access other study material that help in Biology preparations like past years’ question papers and sample question papers from the Extramarks website and mobile application.
The Biology board exam paper is set in accordance with the Tamil Nadu Class 12 Biology syllabus. So it becomes extremely important for students to study topics based on the syllabus to crack the Biology exam. Studying according to the Tamil Nadu Class 12 Biology syllabus is helpful in setting the tone for the Biology exam and planning the course of action that a student should take while preparing for the exam.
Importance of Biology
Biology is a significant subject that helps one to understand the living world. It gives us knowledge on how living things exist in the world and on various life processes that are happening in the world.
It is important to study Biology in order to improve the quality of life and make scientific advancements through research and experiments. All the medical advancements that have happened till now are due to study, research and experiments carried out in various fields of Biology. Students are expected to learn Biology to be able to someday contribute to the advancements in science and technology. Biology is important for finding solutions to large-scale problems like environmental issues and health issues.
With the help of Biology, students can make careers as a doctor, research scientists, biotechnologists, etc.
Syllabus
The complete Tamil Nadu Class 12 Biology syllabus can be accessed on the Extramarks website and mobile application.
Botany
Using the Tamil Nadu board Class 12 Botany syllabus is a valuable resource for students to learn, read, and clarify their concerns. In 12th Botany syllabus Tamil Nadu board, the textbook is based on the syllabus for Class 12 Botany developed by the Tamil Nadu Board of Education. To review the topics covered in the syllabus, the Extramarks website and mobile application are valuable resources. With Extramarks, students will learn better, faster, and in an easier way.
Zoology
Students will gain a complete understanding of a topic from the Class 12 Tamil Nadu board Zoology syllabus with the help of Extramarks. It will help them to remember its content for a long time to come. Students use the Extramarks website and mobile application not only to study concepts, but also to revise for exams.
Practical Activities
In a subject like Biology, it is important to perform practical activities along with theoretical knowledge. Students belonging to the Board of Higher Secondary Education, Tamil Nadu are supposed to practise some of the concepts covered under the Tamil Nadu Class 12 Biology syllabus through practicals. It is important to understand the biology concepts through experiments and observations.
Practicals are important in the Tamil Nadu Class 12 Biology syllabus, and practical questions are asked in Class 12 board exams.
Extramarks’s Role
Extramarks is a learning platform dedicated to providing the best learning environment for students of all the classes and preparing them to score higher marks in their respective examinations. The Extramarks website has live interactive classes for students to understand important concepts in a strategic manner.
The Extramarks teachers are experts in various subjects and play an important role in concept building.
All the important study resources are available on the Extramarks website and mobile application for students of every class.
The detailed Tamil Nadu Class 12 Biology syllabus is being provided by the Extramarks website for students to be well-informed about the topics and subtopics covered in Biology. Accessing the Tamil Nadu Class 12 Biology syllabus will help students in understanding the structure of chapters, and they can plan their studies accordingly.
SYLLABUS- 2021 – 2022
STANDARD: 12 SUBJECT: ZOOLOGY
| UNITS | CONTENT |
| 1 Reproduction in Organisms | Introduction
1.1. Mode of Reproduction 1.3 Sexual reproduction |
| 2 Human Reproduction | Introduction
2.1. Human Reproductive system 2.2. Gametogenesis 2.5. Fertilization and Implantation 2.6. Maintenance of pregnancy and Embryonic development |
| 3 Reproductive Health | Introduction
3.1. Need for reproductive Health problems and strategies 3.2. Amniocentesis and its statutory Ban 3.3. Social impact of sex ratio – female foeticide and infanticide 3.4. Population explosion and Birth control 3.8. Assisted Reproductive Technology(ART) 3.9. Detection of foetal disorders during early Pregnancy |
| 4 Principles of Inheritance and Variation | Introduction
4.1. Multiple alleles 4.2. Human blood groups 4.2.1 ABO blood types 4.3. Genetic control of Rh factor 4.3.1 Incompatibility of Rh Factor – Erythroblastosis foetalis 4.4. Sex determination 4.4.1 Genic balance in Drosophila 4.4.2 Dosage compensation – Barr body 4.5. Sex linked inheritance 4.5.1 Inheritance of X-linked genes 4.5.2 Inheritance of Y-linked genes 4.6. Karyotyping 4.7. Pedigree analysis 4.10. Extra chromosomal inheritance 4.11. Eugenics, Euphenics and Euthenics |
| 5 Molecular Genetics | Introduction
5.1. Gene as the functional unit of Inheritance 5.2. In search of Genetic material 5.3. DNA is the Genetic Material 5.3.1 Hershey and Chase experiment on T2 bacteriophage 5.5. RNA – World 5.6. Properties of genetic Material 5.7. Packaging of DNA helix 5.9. Transcription 5.9.1 Transcription unit and gene 5.9.2 Process of transcription 5.10. Genetic Code 5.10.1Mutation and genetic code 5.12. Translation 5.12.1 Mechanism of Translation 5.13 Regulation of gene Expression 5.14. Human genome project 5.14.1 Goals and methodologies of Human Genome Project 5.14.2 Salient features of Human Genome Project 5.14.3 Application and future challenges 5.15. DNA finger printing Technique |
| 6 Evolution | Introduction
6.1 Origin of life 6.2. Geological Time Scale 6.3. Biological evolution 6.5. Theories of biological evolution 6.5.1 Lamarck’s theory 6.5.2 Darwin’s theory of Natural selection 6.5.3 Mutation theory 6.5.4 Modern synthetic theory 6.5.5 Evolution by anthropogenic sources 6.5.6 Adaptive Radiation 6.7. Hardy- Weinberg Principle |
| 7 Human Health and Diseases | Introduction
7.1. Common diseases in human beings 7.1.1 Bacterial and viral diseases 7.1.2 Protozoan diseases 7.1.3 Fungal diseases 7.1.4 Helminthic diseases 7.2. Maintenance of personal and public hygiene 7.3. Adolescence -Drug and Alcohol abuse 7.3.1 Addiction and dependence 7.3.2 Effects of drugs and alcohol 7.3.3 Prevention and control 7.4. Mental health depression |
| 8 Immunology | Introduction
8.1. Basic concepts of Immunology 8.2. Innate immunity 8.3. Acquired immunity 8.4. Immune responses 8.5. Lymphoid organs 8.6. Antigens 8.7. Antibodies 8.8. Antigen – Antibody interaction 8.9. Vaccines 8.10. Vaccination and Immunization 8.11 Hypersensitivity |
| 9 Microbes in Human Welfare | Introduction
9.2 Microbes in industrial products 9.2.1 Antibiotic production 9.2.2 Fermented beverages 9.2.3 Chemicals, enzymes and other bioactive molecules 9.3 Microbes in sewage treatment 9.3.1 Microbial fuel cell (MFC) 9.5 Bioremediation 9.5.1 Microorganisms involved in bioremediation |
| 10 Applications of Biotechnology | Introduction
10.1. Applications in medicine 10.1.1 Recombinant Human Insulin 10.1.2 Human alpha lactalbumin 10.1.3 Interferons 10.1.4 Recombinant Vaccines 10.2. Gene therapy 10.3. Stem cell therapy 10.4. Molecular Diagnostics 10.5. Transgenic Animals 10.6. Biological Products and their uses |
| 11 Organisms and Populations | Introduction
11.1 Organisms and its environment 11.3. Major Abiotic components or factors 11.7 Populations 11.8 Population Attributes 11.12 Population Interaction |
| 12 Biodiversity Conservation | and Its | Introduction
12.1. Biodiversity 12.1.1 Concept of biodiversity 12.1.2 Levels of biodiversity 12.1.3 Magnitude of biodiversity 12.1.4 Patterns of biodiversity – distribution 12.2. Importants of Biodiversity -Global and India 12.5. Causes of biodiversity loss 12.5.1 Loss of biodiversity 12.5.2 Hotspots 12.5.3 Endangered organisms 12.5.4 Extinction 12.7. Biodiversity and its Conservation 12.7.1 In-situ Conversation (conversation in natural habitat) 12.7.2 Ex-situ Conversation 12.7.3 Role of WWF and CITES |
|
| 13 Environmental Issues | Introduction
13.1 Pollution |
||
| 13.1.1 | Classifications of Pollutants | ||
| 13.6. Bio Magnification | |||
| 13.7. Eutrophication | |||
| 13.7.1 | Integrated Wastewater Management | ||
| 13.8. Organic farming and its Implementation | |||
| 13.9 Solid Waste Management | |||
| 13.9.1 | Waste management practices | ||
| 13.9.2 | Radioactive waste | ||
| 13.9.3 | Medical waste | ||
| 13.9.4 | E-Waste | ||
| 13.9.5 | Plastic Waste – Solutions and Remedies | ||
| 13.10 Ecosan Toilets | |||
PRACTICALS
STD: 12 SUBJECT : ZOOLOGY
| Sl.No |
Topic |
| 1 | Marking of wild life sanctuary and National parks in India Map |
| 2 | Human Mendelian traits |
| 3 | Human Sperm |
| 4 | Human Ovum |
| 5 | Paramecium – Conjugation |
| 6 | Entamoeba histolytica |
| 7 | Thymus T.S |
| 8 | Lymph node |
| 9 | Mutualism |
| 10 | Commensalism |
| 11 | tRNA |
| 12 | Homologous organs |
| 13 | Analogous organs |
| 14 | Animal cloning |
| 15 | X linked Disease |
| 16 | Autosomal Disease |
