Cell – The Basic Unit of Life Class 9 Science

📘 Lesson Overview

This lesson introduces students to the fundamental concept of the cell — the basic unit of all living organisms. It covers the discovery, types, structure, and functions of cells, along with a comparative study of plant and animal cells.


🎯 What This Lesson Covers:

✅ What is a Cell?
✅ Unicellular vs. Multicellular organisms
✅ Prokaryotic and Eukaryotic Cells
✅ Basic Structure of a Cell: Membrane, Cytoplasm, and Nucleus
✅ Cell Organelles and Their Functions (Mitochondria, ER, Golgi, etc.)
✅ Differences Between Plant and Animal Cells
✅ Chromosomes, DNA, and Nucleus
✅ Fun facts about cells (like the longest cell, smallest cell)
✅ Simple activities: Onion peel and cheek cell observation
✅ Topic-wise Recap & Quiz

Cell structure
Cell structure

🧠 By the end of this lesson, students will be able to:

  • Understand the importance of cells in living organisms
  • Identify types of cells and key differences
  • Label and explain the functions of major cell organelles
  • Differentiate between plant and animal cells
  • Appreciate how structure and function are related in biology