Cell The basic structural and useful unit of life is cell. Cell structure varies in size and form. History of cell Robert Hooke in 1665, determined a bit of cork beneath the magnifier and noticed it to be created of tiny compartment that he referred to as “cells.” Robert Hooke derived the name, 'cell '. Anton Von Lewenhoek classified organisms in 2 sorts by the quantity of their cells. Unicellular Multicellular Theory of cell Matthias histologist and Theodore physiologist in 1938bproposed the scientific theory that was later changed by Rudolf Karl Virchow in 1885. The theory was- All living organisms are composed of cells and merchandise of the cells. All cells arise from pre-existing cells. Unicellular organism A living thing organism is associate organism that consists of one cell. They are usually microscopic and can't be seen with the optic. For example- rhizome, Paramecium, Euglena, plant, E coli etc. Multicellular organism Organisms that consist of mire than one cell...
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