In this class, we tested our unknown C bacteria’s motility. In order to test this, we used a .4% agar tube, and put a sample of our bacteria on a loop and stabbed it straight down into the agar. The .4% agar is solid enough that the bacteria will not spread around, but fluid enough that the bacteria is able to swim, if it is motile. If the bacteria is able to swim, the .4% agar tube will appear cloudy after the bacteria is grown. If it is non-motile, the bacteria will only grow in the stab line, and will not be cloudy.
Results: Unkown Sample C is Motile. Our environmental sample is nonmotile.
No comments:
Post a Comment