Cell : The unit of life
The cell is the smallest, basic structural, and functional unit of living things.
hence it is generally referred to as ‘building blocks of life.
Cells are capable of independent existence and performing essential functions
All organisms including plants and animals are made up of one or more cells
and all that cells come from pre-existing cells.
Robert Hooke was the scientist who first discovered cells in a piece of cork.
The living cells were first discovered by Antony Van Leeuwenhoek.
Development of Cell
• 1838-English Botanist, Matthias Schleiden, concluded that all
plant parts are made of cells.
• 1839- German physiologist, Theodor Schwann, who was a close
friend of Schleiden, stated that all animal tissues are composed
Development of Cell Theory
1858- Rudolf Virchow, Russian physician, after extensive study of
cellular pathology, concluded that cells must arise from preexisting
All living things are made of cells.
Cells are the basic unit of structure and function in an
organism(basic unit of life).
Cells come from the reproduction of existing cells (cell division).