Catalase Test Lab Report

Abstract: A patient arrived at the hospital recently and brought a sample their infectious disease on an agar plate. A series of tests were completed in order to identify this unknown sample. First, the plate was analyzed for its hemolysis characteristics. Afterwards, a Gram stain was performed from a sample of the agar plate and the slide was viewed under the microscope. Once, the microscopic visual was captured, a catalase test followed. Next, for further data, MSA results were recorded, along with antibiotic observations of demo plates. Lastly, with the information gathered, it was identified that the unknown sample was Streptococcus salivarius.

Introduction: In this lab, the exploration of an unknown gram positive bacteria was conducted. What is known about gram positive microorganisms is that their cell walls are composed of a thick peptidoglycan layer, which retains the purple color of crystal violet during a Gram stain.
The way this prediction came about was from the types of experiments that were going to be conducted. The nature of these tests typically are used when one is in the process of recognizing between the two categories. Streptococcus and Staphylococcus bacteria are responsible for plenty of illnesses and deaths a year. These tiny machines are capable of attacking hosts and making them their most vulnerable. Streptococcus bacteria are often found on the skin, inside the mouth, or in the respiratory tract and are known to be facultative anaerobes that grow in chains. Staphylococcus, on the other hand, grow in grape-like clusters. These characteristics are important to keep in mind, particularly when trying to distinguish between the two. Thus, clarifying which of these two categories the unknown bacteria falls into was the first, main lab