7.7: Concept Check Questions

Microbiology for Earth Scientists · LibreTexts

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    From LibreTexts, under CC BY-SA 4.0, as the source states it; its equations are written in TeX, which the PDF shows typeset. This page at LibreTexts.

    1. How do cells use carbon, nitrogen, and phosphorus? Where do they get those nutrients?
    2. What nutrients are necessary for an organism to make the amino acid cysteine?
    3. What role do extracellular enzymes play in carbon cycling?
    4. What is nutrient stoichiometry and how can it influence microbial communities?
    5. Where is chemotrophy possible? Where is phototrophy possible?
    6. Explain how transport and/or environmental change can play a role in delivering energy sources to lithotrophs.
    7. What are some potential electron donors that are derived from mantle outgassing? How do these electron donors reach the land surface or seafloor?
    8. Where do serpentinites form and how can their formation fuel microbial communities?
    9. Explain how fermentation in fine-grained sediments can be linked to respiration in adjacent coarse-grained sediments.
    10. What are some examples of microbial activity fueled by atmospheric trace gases? Where might atmospheric trace gases have the potential to contribute a significant portion of the energy to microorganisms?

    This page titled 7.7: Concept Check Questions was last modified on Sun, 31 Mar 2024 22:37:03 GMT and is shared under a CC BY-SA 4.0 license and was authored, remixed, and/or curated by Matthew F Kirk via source content that was edited to the style and standards of the LibreTexts platform.