T he Cell T heory
and
How We Got
T here
The Cell Theory – a timeline
•

Late 1500’s:
• first lenses used in Europe
• used to determine cloth quality
(weave and pr...
Robert Hooke ( 1665)
•
•

Used light microscope to look at
thin slices of plant tissues -- cork
Called tiny chambers
“cell...
Anton Von Leeuwenhoek 1673
•
•

•

•

Leeuwenhoek
First to view
pond water
organisms
First to see living
microscopic
organ...
Robert Brown 1827
•

Noticed that all cells have a dark region.
Called it the

“Nucleus”
Matthias Schleiden 1838
•
•

German Botanist (studied plants)
All plants looked at were made of
cells, so concluded:

“All...
Theodore Schwann -- 1839
•
•

German scientist who studied
animals -- zoologist
Saw that all animals he studied
were cellu...
Rudolf Virchow -- 1855
•

German physician who studied
cell reproduction
“Where a cell
exists, there
must have been
a pree...
The Cell Theory
•
•

•

All living things are composed of
cells
Cells are the basic units of
structure and function in liv...
The Cell Theory
•
•

•

All living things are composed of
cells
Cells are the basic units of
structure and function in liv...
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Cell Theory

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Cell Theory

  1. 1. T he Cell T heory and How We Got T here
  2. 2. The Cell Theory – a timeline • Late 1500’s: • first lenses used in Europe • used to determine cloth quality (weave and precision) • combos of lenses gave better view
  3. 3. Robert Hooke ( 1665) • • Used light microscope to look at thin slices of plant tissues -- cork Called tiny chambers “cells”
  4. 4. Anton Von Leeuwenhoek 1673 • • • • Leeuwenhoek First to view pond water organisms First to see living microscopic organisms Made careful sketches
  5. 5. Robert Brown 1827 • Noticed that all cells have a dark region. Called it the “Nucleus”
  6. 6. Matthias Schleiden 1838 • • German Botanist (studied plants) All plants looked at were made of cells, so concluded: “All plants are made of cells.”
  7. 7. Theodore Schwann -- 1839 • • German scientist who studied animals -- zoologist Saw that all animals he studied were cellular so concluded: “All animals are made of cells.”
  8. 8. Rudolf Virchow -- 1855 • German physician who studied cell reproduction “Where a cell exists, there must have been a preexisting cell…..”
  9. 9. The Cell Theory • • • All living things are composed of cells Cells are the basic units of structure and function in living things New cells are produced from existing cells
  10. 10. The Cell Theory • • • All living things are composed of cells Cells are the basic units of structure and function in living things New cells are produced from existing cells

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