BIOLOGY 173 Lecture Notes - Lecture 3: Gram-Negative Bacteria, Penicillin, Exponential Growth
3 Feb 2017
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Higher the variance, less convincing the result is. Large diff btwn mean large t large significance. What is out model system for studying evolution. Can differentiate e. coli from other bacteria by color and and e. coli"s gram negative characteristic since emb supports growth of this family of bacteria. E. coli can be diff from other colorful bacteria since it will be a metallic green color while other bacteria are usually. Put the cells in an environment that being resistant is not helpful. Antibiotics: chemical compounds that are made by one organism to kill other organisms. A good antibiotic: doesn"t kill the organism that makes it, kills some other organism that is competing with it. In order to do this, target characteristics that are diff btwn prok and euk cells. Interfere with bacterial enzymes responsible for making the cell wall. Ex. penicillin is a competitive inhibitor of enzyme that crosslinks cell wall. Bacterial resistance: created through the elimination of vulnerability.
