INTRODUCTION
Bacteria are microorganisms constituting a large domain of prokaryote. They are typically a few micrometers in length and have a number of shapes ranging from spirals to rods and spheres. Bacteria are known to be among the first forms of life to appear on Earth, and are present in almost all habitats. They inhabit water, soil, radioactive waste, acidic hot springs, and
Earth’s crust deep portions. Bacteria live in symbiotic and parasitic relationships with animals and plants. The kingdom bacteria …show more content…
For the Casein Hydolysis test, the materials used were a skim milk agar plate and the pure culture of Neisseria sicca.
For the catalase test, 3% H2O2 solution dropped onto the agar plate using pipette. A few EA & JB 4 moments of waiting was observed and a bubbling appearance occurred indicating the presence of catalase. For the oxidase test, an ampule of reagent was added to the streak plate of Neisseria sicca culture, with a waiting period to see if there was any color change on the plate.
For the starch hydrolysis test, grams of iodine was added to the culture plate to see if any color change will occur.
All inoculated plates of the Neisseria sicca were incubated at 37 degrees Celsius for 48 hours, and transferred afterwards to a refrigerator for further inspection.
The agar slant and deep agar tests included Oxidation-Fermentation test, LIA test,
Carbohydrate tests, Gelatin Hydrolysis, Motility test, H2S Production test, Indole test,