FULL PREPARATION: BIOS 242 Week 4 iLab: Carbohydrate Tests CARBOHYDRATE TESTS Introduction: The purpose of this lab was to determine which carbohydrates a bacterium can use on three different specimens. The acid from glucose test is done to see if the microbe can ferment the glucose a carbon source. The lactose fermentation test was performed to see if the microbe can ferment lactose as a carbon source and the sucrose fermentation test was performed to see if the microbe can ferment sucrose as a carbon source. I tested each of the bacterium for glucose, lactose and sucrose as carbon sources. In the first case study I was presented with water from the Baker ranch that was provided from a pond that they used to give the cattle to drink as the earthquake had opened up a natural spring. The tests I conducted came back positive for glucose, sucrose, and lactose. It was negative for gas, and contained a gram negative rod stain. The second case was a boy dropped a slice of watermelon on the ground of the barn and rinsed it off with water then proceeded to try to eat it when the nurse in charge took it away