An organism appears as a purple color and appears as round cels that form a chain when the gram stain is performed. it is added to hydrogen peroxide and does not bubble, it is grown on TSA agar and shows large clear zones. (The lab technician can see complete lyss of the red blood celis) it is streaked on TSA agar. A bacitracin diskis added is added A clear zone with no growth is seen around the anubiotic disk after incubation. (A dark color is seen around the disk where the organism does not grow). Staphylococcus aureus Staphylococcus epidemitif Staphylococeus saprophylicus Streptococcus pyogenes Sueptococcus agalactiae.