Textbook Question
Label the general phases in the carbon cycle.
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Ch. 27 - Microbial Ecology and Microbiomes
Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302
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Table of contents
- Ch. 1 - A Brief History of Microbiology31
- Ch. 2 - The Chemistry of Microbiology28
- Ch. 3 - Cell Structure and Function39
- Ch. 4 - Microscopy, Staining, and Classification25
- Ch. 5 - Microbial Metabolism51
- Ch. 6 - Microbial Nutrition and Growth37
- Ch. 7 - Microbial Genetics51
- Ch. 8 - Recombinant DNA Technology21
- Ch. 9 - Controlling Microbial Growth in the Environment36
- Ch. 10 - Controlling Microbial Growth in the Body: Antimicrobial Drugs21
- Ch. 11 - Characterizing and Classifying Prokaryotes29
- Ch. 12 - Characterizing and Classifying Eukaryotes34
- Ch. 13 - Characterizing and Classifying Viruses, Viroids, and Prions23
- Ch. 14 - Infection, Infectious Diseases, and Epidemiology35
- Ch. 15 - Innate Immunity34
- Ch. 16 - Adaptive Immunity21
- Ch. 17 - Immunization and Immune Testing29
- Ch. 18 - Immune Disorders22
- Ch. 19 - Pathogenic Gram-Positive Bacteria25
- Ch. 20 - Pathogenic Gram-Negative Cocci and Bacilli28
- Ch. 21 - Rickettsias, Chlamydias, Spirochetes, and Vibrios25
- Ch. 22 - Pathogenic Fungi47
- Ch. 23 - Parasitic Protozoa, Helminths, and Arthropod Vectors44
- Ch. 24 - Pathogenic DNA Viruses23
- Ch. 25 - Pathogenic RNA Viruses30
- Ch. 26 - Applied and Industrial Microbiology29
- Ch. 27 - Microbial Ecology and Microbiomes22
Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302Not the one you use?Change textbook
Chapter 27, Problem 1
Leaching of compounds from mine tailings often results in the oxidation of two elements: _____ and _____ .
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Identify the common elements that undergo oxidation during the leaching process in mine tailings. This typically involves elements that are present in sulfide minerals.
Recall that in mine tailings, sulfide minerals such as pyrite (FeS\_2) are abundant, and their oxidation leads to environmental issues.
Understand that the oxidation of pyrite primarily involves iron (Fe) and sulfur (S), which are the two elements commonly oxidized during leaching.
Recognize that the oxidation of iron results in the formation of iron oxides or hydroxides, while sulfur oxidation leads to the production of sulfuric acid.
Conclude that the two elements oxidized during leaching from mine tailings are iron and sulfur.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Mine Tailings and Leaching
Mine tailings are the leftover materials after extracting valuable minerals. Leaching refers to the process where water or other solvents percolate through these tailings, dissolving and carrying away soluble compounds, which can lead to environmental contamination.
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Oxidation of Sulfur in Mine Tailings
Sulfur, often present in sulfide minerals within mine tailings, undergoes oxidation when exposed to air and water. This process produces sulfuric acid, contributing to acid mine drainage, which harms ecosystems by lowering pH and mobilizing toxic metals.
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Oxidation of Iron in Mine Tailings
Iron commonly exists in mine tailings as ferrous iron (Fe2+), which oxidizes to ferric iron (Fe3+) upon exposure to oxygen and water. This oxidation promotes the formation of iron oxides and hydroxides, influencing the geochemistry and stability of tailings and contributing to acid mine drainage.
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Related Practice
Textbook Question
Indicate whether the following statements is true or false.
_____ Biofilms of microorganisms form in aquatic environments only.
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Textbook Question
A microbiome is composed of _____.
a. single, pure populations
b. all organisms in a locale
c. all microbes in a location
d. only the bacteria are considered
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