Not Just a Tickle in the Throat Part C Analysis of the second swab has confirmed that the causative organism is Streptococcus pyogenes, a gram-positive organism. Imagine that you are the technician looking at the Gram stain from Shelly's culture. What would you expect to see as you look through the microscope? View Available Hint(s) purple, spherical-shaped organisms arranged in chainlike formations pink, rod-shaped organisms arranged in pairs pink spherical-shaped organisms arranged in chainlike formations spherical-shaped organisms arranged in grapelike clusters Surmit Pr Simpson prescribes a course of penicillin to treat Shelly's infection. Part D

As you peer into the microscope, you'd expect to see purple, spherical-shaped organisms arranged in chainlike formations. This is characteristic of Streptococcus pyogenes, which is known for its cocci shape and tendency to form long chains, resembling a string of beads. The purple hue indicates that it’s a gram-positive bacterium, staining positively due to its thick peptidoglycan layer in the cell wall. Penicillin works effectively against Streptococcus pyogenes because it targets the bacterial cell wall synthesis, making it a go-to choice for treating infections caused by this pathogen. It’s important to complete the full course of antibiotics to ensure all the bacteria are eradicated and to prevent any potential complications, such as rheumatic fever, which can arise from untreated infections.