Catalase and Oxidase Tests on Unknown
For this week’s lab assessment, you will answer just a few questions regarding the oxidase and
catalase assays and unknown results and then you will continue to work on your
lab report. For week 10, you will make sure that you are:
1) continuing to work on your introduction section.
• if you are still struggling to find articles, here are a few suggestions to get you
started….you will need to find at least one other on your own, preferably 3-4
3) continue working on your results section
• again, as I mentioned last week, your results section is just going to be a listing of
your results and any photos with figure legends that you include
• you are also free to include a table of your results
Questions
1) What are the bubbles that you see in a positive (+) catalase reaction?
2) Bacteria capable of synthesizing the enzyme catalase hydrolyze into and gaseous oxygen.
3) The oxidase test is used to identify microorganisms containing the enzyme
4) Cytochrome oxidase transfers electrons from the electron transport chain to and reduces it to water.
