 |
| Previous Image | Next Image |
| Description: Pasteur filled a flask with medium, heated it to kill all life, and then drew out the neck of the flask into a long S shape. This prevented microorganisms in the air from easily entering the flask, yet allowed some air interchange. If the swan neck was broken, microbes readily entered the flask and grew.
Picture Stats: Views: 1734 Filesize: 70.41kB Height: 467 Width: 825 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=18581 |