Tamil Nadu Board (TN HSC) Biology Syllabus for Class 12 - Free PDF Download
Tamil Nadu Board of Secondary Education is responsible for conducting higher secondary Education examinations in the state every year. To keep up with the developing pace of the environment, the board has included various changes in the course curriculum so that students stay up to date. For scoring good marks, a grasp on subject matter is essential. We help you in this by providing the syllabus for 12th class biology syllabus. It is integrated with theoretical knowledge as well as practical activities to allow better inception and understanding of the subject matter. The Tamilnadu directorate of government is the committee of the Tamil Nadu state which is responsible for integrating different subject related matters and formatting the syllabus of 12th class in such a way that it favours the overall development of students and gives a better understanding of the subject matter. The syllabus is the first step to preparation for students aspiring to give 12th board exams in near future.
Tamil Nadu Board (TN HSC) Biology Latest Syllabus for Class 12
Tamil Nadu Board HSC Class 12 Biology Syllabus 2023
Importance of Biology
Biology is one of the core subjects in the twelfth class for students belonging to science stream. Repeated practice of Biology can help to score more marks in the examination and boost performance and scores in overall results. A large number of questions are also framed from the Biology subject in various competitive exams. A student can easily increase their scores if they have good command and better understanding of the subject. For this, it is necessary that you are thorough with the syllabus and topics, from which the questions are framed. Here, Vedantu makes this task easier and provides you with the complete biology syllabus so that you can target on learning and scoring good marks.
Syllabus
While preparing for any exam, a student must have an insight to the syllabus and prepare accordingly to get effective results. The syllabus is framed in such a way that it includes theory portion as well as practical activities and knowledge. The syllabus is up to date and includes subjects and topics which could be asked in various competitive exams. You can go through these topics to devise your study plan and focus more on important topics from which a large number of questions are being asked. Biology syllabus is divided into two sub-section, i.e., botany and zoology.
Botany
Unit | Topics |
Taxonomy of angiosperms | Type of classification such as artificial, natural, phylogenetic biosystematics binomial nomenclature herbarium and their uses classification of plants families such as Malvaceae, solanaceae, euphorbiaceae, liliaceae and their economic importance |
Plant anatomy | tissue and tissue system anatomy of monocot and dicot root anatomy of monocot and dicot stem anatomy of dicot leaf |
Cell biology and genetics | chromosome structure and types genes and genomes linkage and crossing over gene mapping recombination of chromosomes mutation and chromosome aberrations DNA as a genetic material its structure and replication of DNA Structure of RNA and its type |
Biotechnology | recombinant DNA technology transgenic plants and microbes plant tissue culture and its application protoplast fusion SCP |
Plant physiology | Photosynthesis its significance and photochemical reactions, electron transport system, photorespiration factors affecting photosynthesis mode of nutrition chemosynthesis respiration, glycolysis, krebs cycle and aerobic respiration and anaerobic respiration fermentation plant growth regulators phytohormones such as auxins, gibberellins, cytokinin, ethylene, ABA. photoperiodism and vernalization |
Biology in human welfare | food production important varieties role of biofertilizers crop diseases and their control biopesticides genetically modified organisms Bio war Biopiracy biopatent sustainable agriculture medicinal plants including microbes economic importance of crops. |
Zoology
Unit | Topics |
Human physiology | Nutrition- carbohydrates, proteins, lipids, balanced diet, malnutrition, digestive enzymes, illness to human bodies Bones and joints- muscles Respiration-breathing, Circulation-including heart functioning,myocardial infarction, atherosclerosis, ECG, heart valves, blood pressure, heart transplantationPlasma- corpuscles, anticoagulants Coordinating system- including brain functioning, memory, diseases, spinal cord functioning,reflex action Chemical coordination- thyroid, parathyroid, insulin, hormones of adrenal cortex and medula, reproductive hormones Receptor organs -including eyes, ears, skin, tongue excretion kidney Reproductive system- spermatogenesis and oogenesis menstrual cycle, in vitro fertilization, birth control, STD and AIDS. |
Microbiology | Introduction Influence of Louis Pasteur, koch Virology genetics AIDS and its control bacteriology, protozoan microbiology and larval microbiology pathogenicity of microorganisms. |
Immunology | Immune system- innate immunity- lymphoid cells, mononuclear phagocytes, cytokines, structure of antibody, antigen antibody reaction acquired immunity- development of immune system, T- cell activation, monoclonal body, cytotoxicity, infections and immunity, immunity and tissue transplantation, immune-related disease. |
Genetics | Human genome project, genetic disease, karyotyping recombinant DNA technology, cloning, transgenic organisms, genetically modified organisms, gene therapy, bioinformatics, DNA sequencing, protein sequencing, protein structure,database. |
Environmental sciences | Human population, global warming, ozone layer depletion, waste management, biodiversity conservation, energy crisis ,and environmental impact, Poverty. |
Biology applications | Livestock and Management, milch breed, draught breed, common diseases and control, poultry farming, pisciculture, urine analysis, CT scan, artificial pacemaker. |
Evolution theories | Lamarkism, darwinism, modern concept of natural selection, species concept, origin of species and isolating mechanisms. |
Practical Activities
Describe floral parts of flowers belonging to different families like Solanceace, Malvaceae.
Identify the different slides such as T.S. of a dicot stem, monocot stem, dicot root, monocot root etc
Study DNA model
Study plantlets in tissue culture.
Study important physiological reactions in plants such as photosynthesis, respiration, transpiration with the help of models.
Describe the economic importance of plants.
Test for carbohydrates, proteins and fat.
Test of urea through urine sample.
Identify and study microbial structures through prepared slides of tapeworm, WBC, RBC.
Study specimens of human body organs.
Familiarisation with instruments such as stethoscope and sphygmomanometer.
Visit to hospital and farms to familiarise with it.
Vedantu's Role
At Vedantu, we believe that, "Right practice in the right way makes a man perfect." Here is the detailed biology syllabus for 12th class students and aspirants, who want to ace their board examinations as well as obtain a good score in competitive examinations. The detailed syllabus encompasses all the topics from which questions can be asked in the examination. The outline of the syllabus will also help you to have a better understanding of the subject and also give an understanding about the number of questions asked from a particular topic and the marks wise weightage of a particular chapter. With consistent practice and up to date content of Vedantu, you can easily score good marks and ace in your examinations.
