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The Cell Theory

The Cell Theory. All living things are composed of one or more cells Cells are organisms’ basic units of structure and function Cells come from existing cells. Robert Hooke. English scientist 1665  cut a thin slice of cork and observed with a microscope

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The Cell Theory

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  1. The Cell Theory • All living things are composed of one or more cells • Cells are organisms’ basic units of structure and function • Cells come from existing cells

  2. Robert Hooke • English scientist • 1665  cut a thin slice of cork and observed with a microscope • Hooke saw small boxes and named them cells after the small rooms monks live in

  3. Anton van Leeuwenhoek • Dutch microscope maker • 1675  first person to see living cells under the microscope • Looked at a sample of pond water

  4. Rudolph Virchow • 1858, German doctor • Saw cells couldn’t develop from anything other than other cells

  5. Theodor Schwann • 1839 • German zoologist • Concluded that all animals are composed of cells

  6. Matthias Schleiden • 1838 • German botanist • Concluded that all plants are composed of cells

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