Skip to main content
Biology LibreTexts

Lab 4: Worksheet

  • Page ID
    23987
  • \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)

    Name: ______________________________

    Section: _____________________________

    Student ID#:__________________________

    Work in groups on these problems. You should try to answer the questions without referring to your textbook. If you get stuck, try asking another group for help.

    clipboard_e883dfbd9a85543ccfbbe2ecfd8be0143.png

    1. Label which bacteria are Staphylococcus and which are Mycobacterium. (2)

    2. Why is it important to steam the slides for an acid fast stain? (1)

    clipboard_e3933251601450aa12f1a89dfa75513d7.png3. One of your plates contained manganese which is known to induce the sporulation of Bacillus, which plate was it? (3)

    4. Draw what you would expect to see for plate A and B if you did not counterstain with safranin. (1)

    clipboard_e418e113366e34422fbb61eb431143042.png5. Why did you not heat fix this slide? (2)

    6. How does the presence of a capsule make a bacteria potentially more pathogenic to us? (1)


    Lab 4: Worksheet is shared under a CC BY-SA license and was authored, remixed, and/or curated by Nazzy Pakpour & Sharon Horgan.

    • Was this article helpful?