Today’sObjective • Given information about the development of cell theory, summarize the contributions of scientists and/or state the cell theory.
Anton van Leeuwenhoek • First compound light microscope
Robert Hooke • Coined the term “cell”
Matthias Schlieden • All plants are made of cells
Theodor Schwann • All animals are made of cells
Rudolf Virchow • Cells can only arise from pre-existing cells
Cell Theory • The cell is the basic unit of structure. • The cell is the basic unit of function. • All cells arise from pre-existing cells.
Spontaneous Generation? • Francesco Redi
Germ Theory of Disease • Microscopic organisms cause diseases. • Pasteur