THE VIRTUAL EDGE: Lab 5 Cultivation of Bacteria I

Nutritional Requirements for the Cultivation of Bacteria

Media used to grow bacteria in the laboratory must meet their nutritional requirements.  All living organisms have basic requirements for the major element, Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorous, and Sulfur (acronym CHNOPS).  Other major elements include potassium, magnesium, calcium and iron.  As a group, bacteria have a remarkably broad range of metabolic abilities.  Many bacteria are chemoheterotrophs that, like us, utilize organic carbon as an energy and carbon source.  However, there are a good number of bacteria that are photosynthetic, obtaining energy from light, and even some that use inorganic compounds, such as sulfate, nitrate, and ammonia, for energy. 

Lab 5 / Aseptic Technique / Nutritional Requirements for the Cultivation of Bacteria / Enumeration of Bacteria / Dilutions / Lab 5 Organisms

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