தமிழில் CBSE 2026-2027 Grade 9 Science CH-5 | Cell - Cell Division, Mitosis, Meiosis & Cell Theory

CBSE Grade 9 Science | Exploration Cell – The Building Block of Life explained in Tamil. In this video, we complete Chapter 5 – Cell: The Building Block of Life from the new CBSE Grade 9 Science (Exploration) textbook. This session begins by understanding why cells divide, how damaged cells are replaced, and why cell division is essential for growth, repair and reproduction. We also observe cell division in onion root tips and understand the different stages of cell division. Students will then learn the two major types of cell division—Mitosis and Meiosis. We explain where each process occurs, their importance, how they work, and the major differences between them. The session also discusses why proper cell division is important and how errors in mitosis and meiosis can lead to diseases and genetic disorders. Next, we explore the Cell Theory, learning about the contributions of Schleiden, Schwann and Virchow, and understand why cells are considered the basic unit of life. The lesson also introduces cell culture, its applications in medicine, vaccines, agriculture and biotechnology, along with the work of famous scientists Arun Kumar Sharma and Gottlieb Haberlandt. Finally, students learn how cells regulate their growth, what happens when this control is lost, and how cancer cells grow, form tumours and spread through the body. The session also includes Pause & Ponder, Threads of Curiosity, textbook activities and interesting real-life applications. Every topic is explained in simple Tamil with colourful diagrams to make concepts easy to understand for CBSE examinations and competency-based questions. Topics Covered ✔ Cell Division ✔ Onion Root Tip Experiment ✔ Mitosis ✔ Meiosis ✔ Difference Between Mitosis & Meiosis ✔ Importance of Cell Division ✔ Cell Theory ✔ Schleiden ✔ Schwann ✔ Virchow ✔ Cell Culture ✔ Totipotency ✔ Contact Inhibition ✔ Programmed Cell Death ✔ Cell Cycle ✔ Cancer Cells ✔ Tumours ✔ Metastasis ✔ Growth Control ✔ Pause & Ponder ✔ Threads of Curiosity 🔔 Subscribe to Virutcham CBSE for simple Tamil explanations, chapter revisions, mini activities, chapter tests and complete CBSE Science preparation. 📄 PDF & Notes: Join Telegram: https://t.me/VirutchamCBSE Keywords CBSE Grade 9 Science Tamil Cell The Building Block of Life Tamil Cell Division Tamil Mitosis Tamil Meiosis Tamil Onion Root Tip Experiment Tamil Cell Theory Tamil Schleiden Tamil Schwann Tamil Virchow Tamil Cell Culture Tamil Cancer Cells Tamil Tumour Tamil Metastasis Tamil Contact Inhibition Tamil Programmed Cell Death Tamil Cell Cycle Tamil Growth Control Tamil Exploration Science Grade 9 Tamil CBSE Science New Syllabus 2026-27 Tamil Tags CBSE grade 9 science tamil 2026 2027 new syllabus, CBSE class 9 science chapter 5 tamil, CBSE cell the building block of life tamil, CBSE cell division tamil, CBSE mitosis tamil, CBSE meiosis tamil, CBSE onion root tip experiment tamil, CBSE cell theory tamil, CBSE Schleiden tamil, CBSE Schwann tamil, CBSE Virchow tamil, CBSE cell culture tamil, CBSE cancer cells tamil, CBSE tumour tamil, CBSE metastasis tamil, CBSE programmed cell death tamil, CBSE contact inhibition tamil, CBSE cell cycle tamil, CBSE exploration science chapter 5 tamil, CBSE exploration science grade 9 tamil, CBSE science concepts tamil, CBSE science learning tamil, CBSE science exam preparation tamil, Virutcham CBSE science tamil, CBSE class 9 science new syllabus 2026 2027 tamil, exploration science class 9 tamil, exploration science chapter 5 tamil, science in tamil, tamil science class 9 Hashtags #Exploration #Grade9Science #Class9Science #TamilScience #CBSE #CBSEScience #CBSEScienceTamil #CBSEGrade9Science #CBSEClass9Science #CBSEScience2026 #CBSEScience2027 #CBSEScienceNewSyllabus #CBSEScienceChapter5 #CBSEExploration #CBSEExplorationScience #CBSEExplorationTamil #CBSECell #CBSECellDivision #CBSEMitosis #CBSEMeiosis #CBSECellTheory #CBSECellCulture #CBSECancerCells #CBSETumour #CBSEMetastasis #CBSECellCycle #CBSEScienceConcepts #CBSEScienceLearning #CBSEScienceRevision #CBSETamilScience #CBSEScienceInTamil #VirutchamCBSE #VirutchamScience #CellDivision #Mitosis #Meiosis #CellTheory #CancerCells #CellCulture #BiologyInTamil #ScienceInTamil #ExplorationScience #Class9ScienceTamil #Grade9ScienceTamil