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“All living things …”

•   grow
•   use energy
•   are made of cells
•   can die
•   require nutrients
•   exchange gases ...
“All living things …”

•   grow
•   use energy
•   are made of cells
•   can die
•   require nutrients
•   exchange gases ...
Where do living
                                                                                         things come from?...
Tadpoles
Tadpoles




           come from mud
Maggots


cc licensed flickr photo by Clintus McGintus: http://
flickr.com/photos/clintus/2523629054/




              ca...
Spontaneous generation (abiogenesis):

a theory which explains that living
organisms can be spontaneously
created from non...
The right technology




  •Invented   in Holland in 1590
  •First cell seen/drawn by
   Robert Hooke in mid 1600s.
Looked at cork bark (made of dead cells).
The small, empty spaces that he saw
reminded him of a small room. He called
them...
The first living cells were seen
by Antonie van Leeuwenhoek.
The discovery of cells led to the end of spontaneous
           generation as a viable theory.
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Cell Theory 1

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An introduction to cell theory. Uses examples of abiogenesis as a contrast to modern cell theory.

Published in: Education, Technology
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  • Transcript of "Cell Theory 1"

    1. 1. “All living things …” • grow • use energy • are made of cells • can die • require nutrients • exchange gases with their environment • move • depend on other living things • reproduce! • need water
    2. 2. “All living things …” • grow • use energy • are made of cells • can die • require nutrients • exchange gases with their environment • move • depend on other living things • reproduce! • need water
    3. 3. Where do living things come from? What are they made of? cc licensed flickr photo by Brian Hillegas: http://flickr.com/photos/seatbelt67/502255276/
    4. 4. Tadpoles
    5. 5. Tadpoles come from mud
    6. 6. Maggots cc licensed flickr photo by Clintus McGintus: http:// flickr.com/photos/clintus/2523629054/ came from rotting meat cc licensed flickr photo by simplerich: http://flickr.com/photos/simplerich/ 1393197323/
    7. 7. Spontaneous generation (abiogenesis): a theory which explains that living organisms can be spontaneously created from non-living matter Not an unreasonable explanation for societies which didn’t have the right technology to look at what living things are made of.
    8. 8. The right technology •Invented in Holland in 1590 •First cell seen/drawn by Robert Hooke in mid 1600s.
    9. 9. Looked at cork bark (made of dead cells). The small, empty spaces that he saw reminded him of a small room. He called them “cells”.
    10. 10. The first living cells were seen by Antonie van Leeuwenhoek.
    11. 11. The discovery of cells led to the end of spontaneous generation as a viable theory.
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