History of Cell Theory
Name
Robert Hooke
Hans and
Zacharias Janssen
Anton van
Leeuwenhoek
Matthias
Schleiden
Theodor Schwann
Rudolph Virchow
Louis Pasteur
Aristotle*
John Needham*
Francesco Redi*
Robert Brown
Contribution
Year
STEP 2: FINAL QUESTIONS
Answer the following questions and attach to your timeline.
1. What theory did these scientists provide evidence for?
2. What instrument was necessary before the cell theory could be developed?
3. Which three scientists directly contributed evidence for the cell theory?
4. List the three parts of the cell theory as stated in your textbook. Read the cell theory as
stated in this reference: http://biology.about.com/od/biologydictionary/g/celltheory.htm
What additional information is included on this site?