CELL: All the organisms are made up of very small a very small unit called cell.
DISCOVERY OF CELL
In 1665, Robert Hooke first discovered a cell when he was observing a bark of tree as a cork under a primitive microscope(self designed microscope).
He observed it is made up of small spaces contained wall which resembled with honeycomb structure. These small spaces were termed as Cell.
SOME IMPORTANT DISCOVERY
(a) In 1665, Robert Hooke first discovered a cell when he was observing thin slice of cork a cork under a primitive microscope.
(a)After 1674, Leeuwenhoek discovered a living cell in pond water.
(c)In 1831, Robert Brown discovered nucleus of the cell.
CELL THEORY
Cell theory was given by botanist Schleiden andzoologist Schwann. It state that
- All living organisms are composed of cells.
- Cell is the fundamental unit of life.
- All new cells come from pre-existing cells.
Answers the following Questions in comment box
- Who discovered the cell and when?
- Who discovered the nucleus and when?
- Who gave the statement that all the cell arise from pre-existing cells?