3.13: Section Three Review

OER - BIOL 2420 Laboratory Manual · LibreTexts

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    Review Purpose

    This review helps you check what you learned in Section Three before moving on. Work through each question set on the pages that follow, then use the Click to reveal answer option to check yourself. These questions are for practice and self-assessment—they are not graded.

    Before you begin, can you...

    Explain the purpose, identify the key reagents, and interpret the results for each biochemical test below?

    • Sugar utilization: carbohydrate fermentation, triple sugar iron (TSI) agar
    • Multi-test media: SIM, IMViC (indole, methyl red, Voges-Proskauer, citrate)
    • Respiration: oxidase, catalase, nitrate reductase
    • Enzyme & hydrolysis: urease, coagulase, casease, starch hydrolysis
    • Selective & differential agars: blood, MacConkey, mannitol salt

    And can you also...

    • Name the group of bacteria the IMViC panel helps identify?
    • Explain what coagulase is and how it relates to bacterial virulence?
    • Define fastidious bacteria and distinguish alpha, beta, and gamma hemolysis on blood agar?
    • Explain what makes MacConkey and mannitol salt agar each both selective and differential?

    This page titled 3.13: Section Three Review was last modified on Sat, 25 Jul 2026 03:42:53 GMT and is shared under a CC BY 4.0 license and was authored, remixed, and/or curated by Sherry Smith.