An organism appears as a purple color and appears as round cells 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 appears as small green zones. The infectious agent is streaked on a TSA agar and an Optochin.P disk is added. The organism does not. grow around the Optochin P disc. Fefer to the flowchart on the gram positme streptococcus. What is the organism? Staphylacoccus aureus Staphylococcus epidermitis Entercoccus laecalis Streptococcus viridans Streptococcus pneumonsae.