Lab Assignment MCB2010C – Dr. McPartland
Student Name:
A researcher wanted to test the effectiveness of a new antibiotic on Streptococcus pyrogenes, the species of bacteria that causes strep throat. Bacteria were added to dish 1, dish 2, and dish 3. A disk soaked in the new antibiotic was then placed in dish 2. Dish 3 was set up as the
control. The dishes are shown in the diagram below.
image3.emf
59 State one appropriate hypothesis for this experiment. [1]
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image1.emf
60 All three dishes were placed in an incubator at 37°C for 24 hours. The results for dish 1 are shown to the right.
image2.emfComplete (color in) the diagram of dish 2 below to represent an example of experimental results that would support your hypothesis. (Use the “Draw” tab in Microsoft Word)
Explain how your diagram supports your hypothesis. [1]
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61 Describe how the disk in dish 3 should be prepared so it can serve as the control for
this experiment. [1]
Dr. McPartland’s Lab Assignment MCB2010C
Name of the student:
A scientist wanted to see how effective a new drug was against Streptococcus pyrogenes, the bacteria that causes strep throat. Dishes 1, 2, and 3 all had bacteria put to them. Dish 2 was then filled with a disk soaked in the new antibiotic. Dish 3 was put up as the main course.
control. In the diagram below, the dishes are depicted.
image3.emf
59 For this experiment, come up with one plausible hypothesis. [1]
image1.emf
60 For 24 hours, all three dishes were placed in an incubator at 37°C. The dish 1 results are presented to the right.
image2.emfComplete (color in) the diagram of dish 2 below to represent an example of experimental results that would support
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