The Cell

1
The Cell

• Early Discoveries

2

• Leeuwenhoek 1st to record observations
• of cells called animicules
• -made 1st microscope
• Robert Hooke observed tiny units in cork
• and named them cells
• Dutrochet 1st to suggest parts of all
• organisms are made of cells
• Brown 1st to realize that nearly every cell
• contains a nucleus
• Dujardin used the term sarcode to
• describe protoplasm

3

• Schwann determined all animals are made of
• cells
• Schleiden determined all plants are made of
• cells
• Virchow new cells come from other living cells

4
Cell Theory

• All organisms are made of a cell or cells,
• which are the basic units of structure and
  function
• Cells are alike in structure and composition
• All cells carry out similar functions which keep
  them alive
• Cells come from other living cells

5

• organelle little organ specialized structure
  in the cytoplasm of cells
• cells basic units of structure and function in
  living things