Week_4_Lab_1_[1] - Biology 207: Week 4 Lab Sections 002 &...

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Biology 207: Week 4 Lab Eric Elliott
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Recap Microscopy – Brightfield Oil Immersion lens Contrast Simple CV Stain Differential Gram Stain Differential Endospore Stain Slide Prep – Wet Mount Aseptic Technique – Proper method of broth inoculation Spread plating Pure culture method – Streak method to obtain isolated colonies Pasteurization
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Motility Major organelles of motility in bacteria are flagella Flagella allow organisms to move towards nutrients or away from harmful substances in the surrounding environment Flagellum structure Rigid helical structure Composed of a helical structure called the filament which is connected to a hook This hook is then attached to the basal body which is composed of a shaft that is inserted into a series of rings whose number differ for gram-positive and gram-negative cells Please refer to Figure 17.1 in Benson’s
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This note was uploaded on 10/21/2009 for the course HONORS 250 taught by Professor Staff during the Spring '08 term at University of Michigan.

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Week_4_Lab_1_[1] - Biology 207: Week 4 Lab Sections 002 &...

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