Cells: A Review A Little History. . . English scientist, Robert Hooke (1665) looked at cork through a compound microscope saw tiny, room-like structures called these structures 'cells' saw only outer walls - cork cells are not alive ( But they used to be! )
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English scientist, Robert Hooke (1665)
The work of Schleiden, Schwann and Virchow led to the development of the cell theory.
Some complete organisms are made of only one cell.
Some are made of only a few cells.
Cell Membrane - forms
the outer boundary of the
cell and allows only certain
materials to move into or
out of the cell
Nuclear Membrane - separates the nucleus from the rest of the cell
(called ER for short)
Golgi Bodies - are used for
packaging and secreting; “hunks” of ER pinch off to form Golgi bodies
exocytosis and endocytosis
Elodea cells (plant)
micro = small
scope = to look