This video covers Class 9 Science Chapter 2 – Cell: The Building Block of Life from the new NCERT 2026–27 syllabus with a complete line-by-line explanation. In this lecture, every concept from the chapter is explained in a simple and student-friendly way, making it perfect for CBSE students preparing for exams. Class: 9 Subject: Science ( Exploration ) Chapter: 2 ( Cell:The Building Block of Life) Medium: English (Hinglish Explaination) Board: CBSE/NCERT 📘 What you will learn in this video: ✔ What is a cell and why it is called the basic unit of life ✔ Discovery of cell (Robert Hooke) and development of microscopy ✔ Limit of resolution of human eye (0.1 mm) ✔ Structure of cell and cell membrane (fluid mosaic model) ✔ Osmosis, diffusion and types of solutions (isotonic, hypotonic, hypertonic) ✔ Cell wall and difference between plant and animal cells ✔ Prokaryotic vs Eukaryotic cells ✔ Cell organelles: Nucleus (DNA, chromosomes) Mitochondria (powerhouse of cell) Endoplasmic Reticulum (RER & SER) Golgi apparatus Ribosomes Lysosomes Plastids (chloroplast, chromoplast, leucoplast) Vacuole ✔ Cell division (Mitosis & Meiosis) ✔ Cell theory (Schleiden, Schwann, Virchow) ✔ Real-life examples and experiments (potato osmosis, onion peel cells)