Louis Pasteur & Germ Theory Beliefs about disease in19th Century




Download 10.47 Kb.
TitleLouis Pasteur & Germ Theory Beliefs about disease in19th Century
Date12.04.2013
Size10.47 Kb.
TypePresentations


Louis Pasteur & Germ Theory


Beliefs about disease in19th Century

  • People knew there was a link between dirt and disease, but could not explain the link.

  • People explained disease as seeds bad seeds in the air known as miasma.

  • 1850s &1860s breakthrough in the cause of disease.



Step 1: Discovery of Micro-organisms

  • Anthony Van Leeuwenhoek made one of the earliest microscopes.

  • Discovered micro-organisms which he called animalcules.

  • Microscopes not as good as today.



Step 2: Improved microscopes

  • 1800s purer glass produced = better lenses for microscope.

  • 1830 Joseph Lister develops a microscope which can magnify x1000



Step 3: Louis Pasteur’s germ theory

  • Old Theory: spontaneous generation

    • micro-organisms are the result of decaying matter.
  • New Theory: germ theory

    • micro-organisms cause decaying matter.
    • Pasteur showed you could kill the micro-organisms by applying heat - PASTEURISATION.


Step 4: Germ theory vs spontaneous generation

  • Pasteur now had to prove his theory.

  • In competition with French scientist Pouchet.

  • Conducted an experiment showing that microbes in the air caused decay.

  • 1861 published his ‘germ theory’



Step 5: Linking micro-organisms to disease

  • Pasteur showed micro-organisms made wine and beer go bad.

  • Could germs cause disease?

  • Another experiment!

    • Proved that a micro-organism was causing disease in silk worms.


Step 6: Proving the link between bacteria and human disease.

  • Pasteur never showed the link between bacteria and human disease.

  • This was left to Robert Koch



Welcome to add document to your blog or website

Related:

Louis Pasteur & Germ Theory Beliefs about disease in19th Century iconLouis Pasteur & Germ Theory Beliefs about disease in19th Century

Louis Pasteur & Germ Theory Beliefs about disease in19th Century iconLouis Pasteur: Germ Theory Louis Pasteur: Germ Theory

Louis Pasteur & Germ Theory Beliefs about disease in19th Century iconLouis Pasteur Louis Pasteur

Louis Pasteur & Germ Theory Beliefs about disease in19th Century iconLouis Pasteur Chelsea Osterhoudt

Louis Pasteur & Germ Theory Beliefs about disease in19th Century iconLouis Pasteur (1822-1895), Louis Pasteur (1822-1895)

Louis Pasteur & Germ Theory Beliefs about disease in19th Century iconLouis Pasteur By Jamie Mignot

Louis Pasteur & Germ Theory Beliefs about disease in19th Century iconLouis Pasteur By: Dana Herrera & Ramiro Acosta

Louis Pasteur & Germ Theory Beliefs about disease in19th Century iconMicrobiologist Louis Pasteur’s Birth Information He was born on December 27

Louis Pasteur & Germ Theory Beliefs about disease in19th Century iconLouis Pasteur (1822-1895) Charles Smith Interesting Facts

Louis Pasteur & Germ Theory Beliefs about disease in19th Century icon18th Century Europe The Age of Enlightenment Begins with Death of Louis XIV in 1715

Place this button on your site:
www.shrdocs.com


The database is protected by copyright © 2013
send message
www.shrdocs.com
Main page