Question

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

Answer 1

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:

1. All living beings are made up of one or more cells.

2. Cells are the basic structural and functional unit of all living beings.

3. All cells are basically alike in chemical composition and metabolic processes.

4. New cells arise by division of pre existing cells. (Rudolf Virchow)