Cell Theory

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Information about Cell Theory
Education

Published on February 10, 2014

Author: FJHScience

Source: slideshare.net

T he Cell T heory and How We Got T here

The Cell Theory – a timeline • Late 1500’s: • first lenses used in Europe • used to determine cloth quality (weave and precision) • combos of lenses gave better view

Robert Hooke ( 1665) • • Used light microscope to look at thin slices of plant tissues -- cork Called tiny chambers “cells”

Anton Von Leeuwenhoek 1673 • • • • Leeuwenhoek First to view pond water organisms First to see living microscopic organisms Made careful sketches

Robert Brown 1827 • Noticed that all cells have a dark region. Called it the “Nucleus”

Matthias Schleiden 1838 • • German Botanist (studied plants) All plants looked at were made of cells, so concluded: “All plants are made of cells.”

Theodore Schwann -- 1839 • • German scientist who studied animals -- zoologist Saw that all animals he studied were cellular so concluded: “All animals are made of cells.”

Rudolf Virchow -- 1855 • German physician who studied cell reproduction “Where a cell exists, there must have been a preexisting cell…..”

The Cell Theory • • • All living things are composed of cells Cells are the basic units of structure and function in living things New cells are produced from existing cells

The Cell Theory • • • All living things are composed of cells Cells are the basic units of structure and function in living things New cells are produced from existing cells

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