Download The Cell Theory

The Cell
Theory
Long ago people
believed…
“Mice came from
old grain sacks.”
People thought…
“Frogs came from
mud.”
People thought…
“Maggots came
from rotting meat.”
WHY???
•Because that is what
they observed.
This is called…
Spontaneous
Generation
Spontaneous
Generation
is
NOT TRUE!
People created that
theory because they
had no better idea of
how these organisms
really were created.
Now the real story…
• Scientists started to test
the old theories and
found them to be
incorrect.
Video clip, coming up…
• Write these names in your notes,
one person per line.
–Van Leewenhoek
–Hooke
–Schleiden
–Schwann
–Virchow
Video Clip 6:11
• “The Wacky History of
Cell Theory”
• What contributions did the
previous people make towards the
development of the cell theory?
•
•
•
•
•
Van Leewenhoek-The first ______
Hooke
-Named first ______
Schleiden -All ____ made of cells
Schwann -All ____ made of cells
Virchow
-All ___ come from ___
There are
3 parts
to the
Cell Theory
st
1
Part
All cells come
from existing cells.
nd
2
part
Cells are the
basic unit of life.
rd
3
part
All living organisms
are made of cells.