Cell’s history

Cells Cells are the basic units of living organisms. The invention of the microscope secured their discovery.

History of the cell Hooke discovered the cell in 1665. He first saw them through a compound microscope and named them cells after the rooms in a monastery.

Leeuwenhoek became the first person to examine living cells in 1674.

History of the cell The compound light microscope has a series of lenses that magnify an object in steps. Can see things as small as .00002 cm

History of the cell In 1838 Schleiden said all plants are made of cells.

History of the cell In 1839 Schwann said all animals are made of cells.

History of the cell In 1855 Virchow said all cells came from preexisting cells.

Cell theory All organisms are made of cells The cell is the basic unit of organization of an organism. All cells come from preexisting cells.

Electron microscopes In the 1940s The electron microscope was developed. These microscopes use electrons that pass over and through an object.

Basic cell units 2 basic cell types Eukaryotic Prokaryotic

Eukaryotic Organisms that are Eukaryotic have cells that contain internal membrane-bound structures.

Organelles These membrane-bound structures are called organelles, similar to organs that make up a body.

Prokaryotic Prokaryotes are organisms with a cell that lacks internal structure.