1. Cell Theory Notes

2. Cell Theory Notes Instructions:
Watch the video
Take notes.
Pay attention to:
Cell Theory – 3 parts
Scientists – Why are they important?
Anton van Leeuwenhoek
Robert Hooke
MJ Schleiden
Theodore Schwann
Rudolf Virchow

3. Anton van Leeuwenhoek
In 1600’s – first to see living organisms w/microscope in pond water
Invented 100s microscopes
“Wee little beasties”

4. Robert Hooke In 1665 - examined cork from the bark of a tree
Observed tiny boxes – he was 1st to name “cells”
Looked like monastery cells

5. Schleiden and Schwann
In the 1830’s – Schleiden – plants Schwann – animals
Concluded that all plants & animals made up of cells

6. Rudolf Virchow
In 1855, Through investigations showed that the origins of cells was the division of pre- existing cells.

7. Cell Theory – 1840s All living things are composed of cells.
Cells are the basic units of structure & function in all living things. (organization)
New cells are produced from existing cells.