Students Will:
summarize
the contributions
scientists have made toward
the cell theory
 state the cell theory.
Create a time line of the cell
theory
CELL THEORY
By. M. Potestades
BS Biology
Some Random Cell Facts
 The
average human being is
composed of around 100 Trillion
individual cells!!!
 It would take as many as 50 cells to
cover the area of a dot on the letter “i”
Anton van Leeuwenhoek
 First
compound
light microscope
(1590)
Robert Hooke
the term “cell”-"a great
many boxes” (1665)
 Coined
Matthias Schlieden

Botanist- observed living cells in
pond water, which he called
"animalcules" (1673)
Theodor Schwann
 zoologist
who observed that the
tissues of animals had cells (1839)
Rudolf Virchow
 Cells
can only arise
from pre-existing cells
(1850)
 every living thing is
made up of vital units,
known as cells.
Cell Theory
Every living
organism is made
of one or more
cells.
2. The cell is the
basic unit of
function.
3. All cells arise from
pre-existing cells.
1.
Questions…
1.Who used the first microscope?
2. Who said that living cells are called
“animalcules”?
3.Who coined the term “cell”?
4.Who said that tissues were made of cells?
5.Who said that cells must come from
existing cells?
6. What do you call a person who studies
about plants?
7.What do you call the study of animals?
8-10. State the Cell Theory…