Class 11 Biology Cell : The Unit of Life Introduction

Introduction

  • Cell is the fundamental structural and functional unit of all living organisms.
  • Antony Von Leeuwenhoek first saw and described a live cell.
  • All organisms are composed of cells.
  • Some organisms are composed of a single cell and are called unicellular organisms, while others composed of many cells are called multicellular organism.

Class_11_Biology_Cell_Unit_Of_Life_A_Cell

Fig. A cell

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