Aseptic Technique and Gram Stain

In this lab we use a streak plating technique to divide two

unknown bacteria into individual colonies. We prepare a bacterial

smear to facilitate the classification of the bacteria by analyzing their

morphology. We also used the Gram staining technique to determine if

the bacterial cells are Gram-positive or Gram-negative. The Gram-

positive bacteria will retain the color purple. The Gram-negative

bacteria will retain a pink color. For the finally step of this lab we used a

spore staining technique to determine if either bacterium is making

endospores. I really enjoy this laboratory, it was a totally new

experience for me.