C25E15: Ecology & Nutrient Cycles

C4E3: What's Inside That Counts

Chapter 4, Episode 3 This episode examines the internal structures of bacteria, including chromosomes, plasmids, ribosomes, and the powerful survival strategy of endospore formation. We also compare bacteria to archaea and introduce Bergey’s Manual as a tool for microbial identification in clinical and lab settings.

C4E2: The Outer Limits

Chapter 4, Episode 2 We dive into the external structures that help bacteria move, attach, exchange genes, and survive. From flagella and chemotaxis to pili, capsules, and the Gram-positive vs. Gram-negative cell envelope, this episode connects structure to staining, antibiotic susceptibility, and disease severity.

C4E1: The Bacterium Lifestyle

Chapter 4, Episode 1 This episode explores the structure and “lifestyle” of bacterial cells, from shape and arrangement to biofilm formation and motility. Learn how features like capsules, flagella, and quorum sensing influence infection, antibiotic resistance, and clinical outcomes.

C25E16: Water & One Health

Chapter 25, Episode 16 This episode focuses on applied microbiology, water safety, and the One Health concept connecting environmental, animal, and human health. Topics include biotechnology, fermentation, wastewater treatment, waterborne pathogens, and indicator organisms. The episode also discusses spillover events, climate change, vector-borne disease, and how environmental changes can influence infectious disease transmission. Exam 1 Content

C25E15: Ecology & Nutrient Cycles

Chapter 25, Episode 15 This episode introduces microbial ecology and explains how microorganisms are essential for maintaining life on Earth. It focuses on microbial roles in the carbon and nitrogen cycles, decomposition, respiration, fermentation, methane production, nitrogen fixation, nitrification, and denitrification. The episode also highlights how microbes influence ecosystems, climate, and the interconnected concept of One Health.