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Cell Theory Timeline

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by

Gio Williams

on 19 October 2013

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Transcript of Cell Theory Timeline

Andreas Vesalius
(1540)
He dissected the bodies of executed criminals to gain knowledge about human anatomy. Vesalius discovered that the jaw is made of one bone and that the septum does not exist.
John Needham
(1750)
He thought that a life force existed in all inorganic matter. He made many microscopical observations and said that "anguilles", tiny microscopic animals, could be developed spontaneously by natural forces like water and oxygen. He also experimented by heating chicken broth. At the time, people thought that heat killed all organisms, so Needham heated chicken broth to "kill all the organisms". Then, he allowed the open flask to sit out at room temperature, and organisms began to grow. He credited this to spontaneous generation.
Anton van Leeuwenheok
(1674)
Dutch microscopist Antony van Leeuwenhoek published his observations of single-cell organisms. It is likely that Leeuwenhoek was the first person to observe a red blood cell and a sperm cell. Leeuwenhoek made numerous and detailed observations on his microorganisms, but more than one hundred years passed before a connection was made between the cellular structure of these creatures and the existence of them in animals or plants.
Robert Hooke
(1665)
Robert Hooke studied microscopic
principles and observations and
discovered a structure, which he
named "cells." This he wrote about
in his book 'Micrographia,' published
in 1665.
Hans & Zacharias Janssen
(1595)
Cell Theory Timeline
by: Gio Williams

Matthias Schleiden
(1837)
This german botanist observed
that all plants were composed
of cells. Along with this he
developed the importance of the
cell nucleus, which was explained
in his book 'Beiträge zur Phytogenesis,'
published.
Robert Brown
(1830)
He discovered the nucleus in the cells of an orchid. He realized that the nucleus is an essential part of living cells.
Lorenz Oken
(1805)
Oken made a further advance in the application of the a prior principle, in a book on generation (Die Zeugung), in which he maintained that "all organic beings originate from and consist of vesicles or cells."
Jean Baptist Lamarck
(1809)
Recognized that all living things are made up of cells. "Thus every living body is essentially a mass of cellular tissue."
Lazzaro Spallanzani
(1768)
Spallanzani made many contributions to animal reproduction. He was the first to complete artificial insemination and invetro fertilization. He discovered that all cells come from pre-existing dead cells and microbes can travel through the air.
Sources
Francesco Redi
(1668)
Redi discovered maggots evolve into flies. To test his theory, he left meat uncovered and found that maggots appeared. With a further study of maggots, he came to the conclusion that they grow into flies. Redi disproved the spontaneous generation theory.
Louis Pasteur

He pioneered the study of molecular asymmetry; discovered that microorganisms cause fermentation and disease; originated the process of pasteurization; saved the beer, wine, and silk industries in France; and developed vaccines against anthrax and rabies.
Rudolph Virchow
(1855)
By discovering that the cell
theory can be used for diseased
tissue as well as healthy tissue,
Rudolf Virchow came up with the
idea that every cell is made from
a pre-existing cell in 1855.
Theodor Schwann
(1838)
Theodor Schwann proposed that (in animals too) every structural element is composed of cells or cell products. Schwann's contribution might be regarded as the more groundbreaking, since the understanding of animal structure lagged behind that of plants. In addition, he claimed that the fundamental laws governing cells were identical between plants and animals: "A common principle underlies the development of all the individual elementary subunits of all organisms" (Harris 1999, p. 102).
Info
Images
Robert Hooke
http://scienceworld.wolfram.com/biography/Hooke.html
Anton van Leeuwenhoek
http://www.biologyreference.com/Gr-Hi/History-of-Biology-Cell-Theory-and-Cell-Structure.html#ixzz2i7yoM9jy
Lazzaro Spallanzani
http://science.howstuffworks.com/dictionary/famous-scientists/biologists/lazzaro-spallanzani-info.htm
Lorenz Oken
http://www.chacha.com/question/how-did-lorenz-oken-contribute-to-the-cell-theory
Matthias Schleiden
http://scienceworld.wolfram.com/biography/Schleiden.html
Theodor Schwann
http://www.biologyreference.com/Gr-Hi/History-of-Biology-Cell-Theory-and-Cell-Structure.html#ixzz2i80XKHpX
Rudolph Virchow
http://scienceworld.wolfram.com/biography/Virchow.html
Francesco Redi
http://www.ehow.com/facts_7420090_francesco-redi_s-cell-theory.html
1. Andreas Vesalius
http://www.allposters.com/-sp/Portrait-of-Andreas-Vesalius-Posters_i7687750_.htm
2. Hans & Zacharias Janssen
http://commons.wikimedia.org/wiki/File:Zacharias_Janssen.jpg
3. Robert Hooke
http://www.isle-of-wight-memorials.org.uk/others/freshwaterhooke.htm
4. Anton van Leeuwenhoek
http://www.answers.com/topic/anton-van-leeuwenhoek
5. John Needham
http://en.wikipedia.org/wiki/John_Needham
6. Lazzaro Spallanzani
http://kids.britannica.com/comptons/art-161683/A-portrait-of-Lazzaro-Spallanzani-by-an-unknown-artist-is
7. Jean Baptise Lamarck
http://www.answers.com/topic/jean-baptiste-lamarck
Matthias Schleiden
(1794-1881)
Zacharias Janssen, with the help
of his father Hans Janssen, allowed the observation of organisms,fossils, diatoms and even cells. This was due to his invention of the compound microscope.
Images (cont.)
8. Lorenz Oken
http://commons.wikimedia.org/wiki/File:Lorenz_Oken_Portrait.jpg
9. Robert Brown
http://www.nhm.ac.uk/nature-online/art-nature-imaging/collections/art-themes/caught_in_oils/brown_main.htm
10. Matthias Schleiden
http://en.academic.ru/dic.nsf/enwiki/32370
11. Theodor Schwann
http://www.merke.ch/biografien/biologen_en/schwann.php
12. Rudolph Virchow
http://www.science-of-aging.com/timelines/virchow-pathology-cell-formation.php
13. Louis Pasteur
http://chestofbooks.com/food/beverages/Alcohol-Properties/Synthesis-Of-Alcohol-Continued.html#.UmH3K1BJ48A
14. Francesco Redi
http://www.answers.com/topic/francesco-redi
Andreas Vesalius
(1514-1564)
Zacharias Janssen
(1580-1638)
Robert Hooke
(1635-1703)
Anton van Leeuwenhoek
(1632-1723)
John Needham
(1713-1781)
Lazzaro Spallanzani
(1729-1799)
Jean Baptiste Lamarck
(1744-1829)
Lorenz Oken
(1779-1851)
Robert Brown
(1773-1858)
Theodor Schwann
(1810-1882)
Rudolph Virchow
(1821-1902)
Louis Pasteur
(1822-1895)
Francesco Redi
(1626-1697)
THIS SLIDE IS SUPPOSED TO BE THE 1ST.
Full transcript