TN 12th Biology Syllabus 2024-25: Check Chapter-Wise Topics

Megha Sharma

Updated on - Oct 28, 2024

Table of Contents

TN 12th Biology Syllabus 2023-24: PDF Link
TN 12th Biology 2024-25 Syllabus: Chapter Wise Topics
Marking Scheme for TN 12th 2024-25 Biology Syllabus

The TN 12th Biology syllabus 2024-25 is divided into zoology and botany, containing various topics under each subject. The TN 12th biology paper has four sections and is conducted for 150 marks. The syllabus helps the students to learn about the essential chapters, marking criteria, and types of questions asked.

The Directorate of Government Examinations, Tamil Nadu, will release the updated TN 12th 2024-25 Biology syllabus online in PDF format. It includes the marking scheme, important topics, marks distribution, and necessary instructions to follow while appearing for TN 12th board exams.

TN 12th Biology Syllabus 2023-24: PDF Link

The TN 12th Biology 2023-24 syllabus comprises Zoology and Botany subjects set by the Tamil Nadu board authorities. Students can refer to the PDF link for the syllabus below and have detailed information about the marking pattern and the variety of questions asked in the exams.

PDF Links for TN 12th Biology Syllabus
Particulars	PDF Link
TN 12th Biology 2024-25 Syllabus for Zoology	Download Now
TN 12th Biology 2024-25 Syllabus for Botany	Download Now

Check for all subjects: TN 12th Syllabus 2024-25

TN 12th Biology 2024-25 Syllabus: Chapter Wise Topics

The TN 12th Biology syllabus 2024-25 is divided into Zoology and Botany. The biology paper consists of 150 marks and has 4 sections. Students can refer to the vital topics mentioned below and prepare accordingly.

TN 12th Biology Syllabus 2024-25 for Botany

The TN 12th Biology 2024-25 syllabus for Botany contains various topics students must consider from the table below.

Important Topics for TN 12th for Botany
Units	Topics
Taxonomy of Angiosperms	Type of classification: artificial, natural, phylogenetic Biosystematics Binomial nomenclature herbarium
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 Chromosome aberrations DNA a 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 Factors affecting photosynthesis mode of nutrition Chemosynthesis respiration Fermentation Plant growth regulators phytohormones
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.

TN 12th Syllabus 2024-25 for Zoology

The Tamil Nadu 12th Biology 2024-25 syllabus for Zoology is below for student reference.

Important Topics for TN 12th Zoology
Units	Topics
Human physiology	Nutrition Bones and joints Respiration Chemical coordination Receptor organs
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 Acquired immunity
Genetics	Human genome project 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 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 Isolating mechanisms.

Marking Scheme for TN 12th 2024-25 Biology Syllabus

The TN 12th Biology exam is conducted for 150 marks, and students must complete the paper within 3 hours. The biology exam paper is a combination of short, long, and objective questions. The marking scheme for the TN 12th biology exam is given below.