Cell Theory Notes
Cell Theory Notes Instructions: Watch the video http://tinyurl.com/m84ne5o 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
Anton van Leeuwenhoek In 1600’s – first to see living organisms w/microscope in pond water Invented 100s microscopes “Wee little beasties”
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
Schleiden and Schwann In the 1830’s – Schleiden – plants Schwann – animals Concluded that all plants & animals made up of cells
Rudolf Virchow In 1855, Through investigations showed that the origins of cells was the division of pre- existing cells.
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.