3.3.3: Exercise #14 - Lab Wrap-Up

OER - BIOL 2420 Laboratory Manual · LibreTexts

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    Lab Wrap-Up Questions
    Answer the following questions:
    1. What enzyme is produced by a bacterium that turns pink after the addition of Kov ac's reagent? What does the enzyme do?
    2. Why is it important that this agar have a lower concentration of agar than that used to make solid media agars?
    3. How is the ability of a bacterium to produce hydrogen sulfide gas accomplished using SIM media?
    4. How is a SIM test inoculated and why is it that this method of inoculation is needed?
    5. Examine the image below of a SIM test. Explain the results of the test based on your observations.
    SIM test tube showing bacterial test results.
    Source: A doubt, Wikimedia Commons, CC BY 4.0.

    This page titled 3.3.3: Exercise #14 - Lab Wrap-Up was last modified on Sat, 25 Jul 2026 03:43:05 GMT and is shared under a CC BY 4.0 license and was authored, remixed, and/or curated by Sherry Smith.