Science Homework Help

Please look over this document (attached) and then fill out the chemical tests to tell me what kind of bacteria you were growing in the lab. You will need to use your lab manual (posted here as a pdf) to interpret the tests that are shown in the images of the grid. You only need the links listed below if you do not understand the chemistry of the manual. Please let me know if you need the links

You will need to determine the identity of your unknown from the list provided in the file.

EACH chemical te st needs to be DESCRIBED. Not just “positive” or “negative” but what the results mean – what chemistry does that positive or negative represent? For example, let’s say you have a Phenol Red Lactose tube which turns yellow and makes a bubble. This positive result means that the bacteria can eat lactose and also produced CO2.

Fill out the columns for “Appearance After” and “Interpretation” then answer the questions about gram status, endospore presence, and description of quadrant streak colonies. Once you have all that information, you should be able to use the internet to determine if you have Planococcus, Micrococcus, Escherichia, or Serratia.