The discovery of the biological cell.


The biological cell is the microscopic functional and structural unit of all living organisms, consisting of a nucleus, cytoplasm, and a limiting membrane[1].


In 1665, the English architect and polymath Robert Hooke (1635-1703) discovered cells in cork. More precisely, he observed only the cell walls of the cork cells because his microscope was not powerful enough to show the cell organelles (parts of a cell). Here is a depiction of what he saw[2]. No portrait of Robert Hooke has been found.

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