MICROBIO 101 Study Guide - Final Guide: Firmicutes, Tetanus, Childbirth

• School: UW-Madison
• Department: Microbiology
• Course: MICROBIO 101
• Professor: M I C H E L L E R O N D O N

Document Summary

Three features of intact skin that make it a good barrier to infection. Antimicrobial properties: lysozymes, antimicrobial peptides, salty, low ph. Colonization resistance (already bacteria there: main types of microbes found on the skin. Varies from person to person and location to location. Commensal pathogens: staphylococcus aureus, staphylococcus epidermidis, streptococcus pyogenes, propionibacterium acnes, roles of staphylococcus epidermidis. Antimicrobial features produces skin antimicrobial peptides. Transmission: deep wound or cut: deep wounds are anaerobic areas, which is what this needs to grow, main virulence factor of c. tetani. Aerobic respiration or fermentation: diagnostic feature that distinguishes staphylococcus from streptococcus and. Catalase: staphylococcus is catalase positive, streptococcus and enterococcus are catalase negative. Matters because it would be important to discover which bacteria it was if it caused disease: distinguishing staphylococcus aureus from other staphylococci. Nasal passage: sites of infection for s. aureus. Skin: virulence factors of s. aureus and specific examples of each. Degradative enzymes: staphylokinase, hyaluronidase, proteases, lipases, nucleases.