1. Jessie is testing water from Lake Escherichia samples using the same 3 tube r

Question

1. Jessie is testing water from Lake Escherichia samples using the same 3 tube results in a table: (2 points) protocol we used in lab, and has put the LTB 2 3 1 BGLB 2 21 EC 1 30 a. How many BGLB tubes did Jessie inoculate? How many EC tubes did Jessie inoculate? b. How many total coliforms are present in the water? (Units are important!) c. How many fecal coliforms are present in the water? (Units are important!) 2. Suppose there's a media that can grow only fecal coliforms. How much of the original water sample would you have to plate on one plate to get a colony count between 30 and 300? Is the amount you calculated a plausible amount of sample to put on a plate? (Show your work, 2 points) 3. Jessie is doing a capsule stain, and proceeds to smear a small amount of colony in a few drops of Congo Red, and then waits for it to dry. Once it's completely dry, Jessie heat fixes it and waits for it to cool completely before gently adding the Maneval's Solution and waiting 5 minutes. The excess stain is poured off, and the slide is gently rinsed with water, and left to air dry. Will the results from Jessie's slide be interpretable? Why or why not? (1 point)

Explanation / Answer

1. Jessie is testing water from Lake Escherichia samples using the same 3 tube r

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