lecture 4 Structure- function

lecture 4 Structure- function - The End of Smelly Gym Socks...

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The End of Smelly Gym Socks? Have you ever been in a room when someone removes their shoes? While many people have no problems with foot odor, some can turn a room into a hazardous smell zone within minutes of shoe removal. Microbes do a number of wonderful things for us. Unfortunately, one down side of this microbe human relationship is that microbes STINK! The microorganisms living on our skin break down various compounds for food. These breakdown products not only produce food for the microorganism but also cause a terrible odor. To stop the odor you have to eliminate large numbers of the organisms from the skin. Washing our skin is one way to lower the number of microbes. Unfortunately, wearing clothing also helps the microorganisms increase in numbers on our skin. The clothing keeps in the moisture we give off. That is why it is a good idea to encourage people with smelly feet to wear socks that adsorb moisture (cotton) and to get them to buy shoes that breath. Lowering the moisture content in those Adapted from Neal Chamberlain Pub: Aug. 27, 1999 Http://www.suite101.com/article.cfm/microbiology/24786
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After graduation, I plan to 1. Go to Medical School 2. Go to Graduate School 3. Go to Nursing School 4. Go to Law School 5. Go to Pharmacy School 6. Get a job 7. I have no clue 8. Other 0 of 257 10
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Announcements Remember to review study Guide for lectures 1-4 Review sessions will begin next week. 6:00 PM until ? Check ELMS for the dates and rooms as I have scheduled them for different days on different weeks. Study questions and vocabulary have been posted in ELMS in the Study Aides section
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Phenotypic analysis gives information that complements Phylogenetic Analysis The light microscope provides valuable phenotypic information when examining environmental samples especially when coupled with staining: Bacteria can be recognized by size, cell shape and cell arrangement. Electron microscope reveals further phenotypic information on structure. Bacteria have distinct structures that support cellular functions Gram positive and Gram negative bacteria can be distinquished via gram stain, analysis of cell wall There structure of the cell wall has an impact on the interaction of the cell with the environment (transport of nutrients, for example) Archaea and Bacteria can be distinguished by analysis of structures The cell membrane is the permeability barrier for the cell. Transport mechanisms control what is transported into cells
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This note was uploaded on 02/26/2011 for the course BSCI 223 taught by Professor Stein during the Spring '08 term at Maryland.

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lecture 4 Structure- function - The End of Smelly Gym Socks...

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