Penecillin acting on bacteria

http://www.hhmi.org/biointeractive/video/index.html

The video clip on how Penecillin acts on bacteria was very interesting and relevant to our Microbiology class because the bacteria they used in the video was "E.Coli." Since we have been studying and working with E.Coli bacteria, it was very interesting to actually watch how Penicillin acts and pokes holes in the cell wall of the E.Coli bacteria. Once the penicillin poked the bacteria, they would literally pop. During the video, you can see the bacteria shrivel up and turn a light color as they died.