Question
What is cell theory ? Name the three scientists whose work led to the formulation of the cell theory.

Answer

Cell theory was given by Schleiden and Schwann in the year 1838-1839. It was refined further by Rudolf Virchow. The main postulates of cell theory are :
  • All living beings are made up of one or more cells.
  • Cells are the basic structural and functional unit of all living beings.
  • All cells are basically alike in chemical composition and metabolic processes.
  • New cells arise by division of pre existing cells. (Rudolf Virchow)

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