Last Minute Lecture

Microbiology of the Built Environment — Metal Leaching, Bioremediation, and Water Treatment Explained | Chapter 22 from Brock Biology of Microorganisms How do microbes influence our built environments, from water systems to industrial sites and even the air we breathe indoors? Chapter 22 of Brock Biology of Microorganisms uncovers the fascinating world of environmental microbiology—revealing both the risks and rewards of microbial activity in human-designed spaces. Whether you're preparing for AP Biology or deepening your scientific understanding, this comprehensive guide summarizes key processes and concepts explored in the chapter. Watch the full video summary below and subscribe to Last Minute Lecture for more textbook breakdowns! Microbial Leaching and Acid Mine Drainage Certain bacteria and archaea can extract valuable metals from low-grade ores—a process called microbial leaching . Species like Acidithiobacillus ferrooxidans facilitate copper, uranium, an...

Microbial Roles in Carbon, Nitrogen, and Sulfur Cycles | Chapter 21 Summary from Brock Biology of Microorganisms Microorganisms are essential drivers of Earth's nutrient cycles. Chapter 21 of Brock Biology of Microorganisms provides a comprehensive look at how microbes facilitate the cycling of carbon, nitrogen, sulfur, iron, and other key elements. These microscopic chemists mediate redox transformations, form syntrophic partnerships, and shape global climate feedbacks. This chapter also addresses how human activities are altering these natural microbial processes. Watch the full podcast summary below and subscribe to Last Minute Lecture for more high-yield microbiology insights. Carbon Cycle CO₂ is cycled through the biosphere, atmosphere, ocean, and lithosphere . Photosynthesis fixes CO₂; respiration and decomposition release it. Microbial decomposition is the major natural source of atmospheric CO₂. Methanogenesis produces CH₄ in anoxic environment...