"bacteria"

Students determine contamination levels of ground beef in different environments.

Everything you need to safetly collect and culture bacteria and fungi from your environment

Hemolysis, the rupture of red blood cells, is induced by certain species of streptococcal bacteria that produce extracellular hemolysin.  Observe this phenomenon with this set of 3 non-pathogenic species

Escherichia coli - Lactose neg

Grows on dead tissues. Novobiocin resistant (S. epidermidis and S. aureus novobiocin sensitive). 

Produces streptomycin. Branching mycelium and coenocytic hyphae. 

Produces orange pigments. 

Isolated from human nasopharynx. Presumably not related to N. sicca; some relation to N. gonorrhoeae. Often agglutinates in saline. 

E. coli with JM101 can be transformed with pUC8 plasmid to become resistant to Ampicillin and to metabolize lactose

The presence of A. viscolactis in milk is a common cause for sliminess or "ropiness".