The biological cell is the microscopic functional and structural unit of all living organisms, consisting of a nucleus, cytoplasm, and a limiting membrane.
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. No portrait of Robert Hooke has been found.
[ux_image_box img=”782″ image_width=”50″ link=”https://ucmp.berkeley.edu/history/hooke.html” target=”_blank”]