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Biology LibreTexts

19.3: Pre-lab Questions

  • Page ID
    40276
    1. What is the purpose and the advantage of Gram Staining bacteria?
    2. Name the chemical and give the purpose of each of the following in the Gram stain:
      1. Primary stain
      2. Mordant
      3. Secondary stain
    3. Color in the following diagram of bacteria (clear, pink, or purple) during the various stain steps:
    clipboard_ec8e32d57232746189971409102e8f7bd.png
    1. Draw and color a picture with Gram + cocci, Gram + rods, and Gram – rods.
    clipboard_e1685d974de92f5684b34561760eea9fe.png

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