The organisms were E. coli, Streptococcus la tips, and Staphylococcus epidermidi
ID: 277973 • Letter: T
Question
The organisms were E. coli, Streptococcus la tips, and Staphylococcus epidermidis.
2 In the table below, identity the carbon and nitrogen sourcela) in each medium and then characterize each as "defined" or undefined" (complex"). If undefined, list the ingredientis) that make it undefined. Finally, use your resuilts to characterize each medium based on its ability to support growth of a wide range of organisms (poor, fair, good) Nutrient Broth Brain-Heart Infusion Broth Glucose Salts Broth Medium Description 2 Carbon sourcels) Nitrogen source(s) Defined/undefined Ingredientís) making it "undefined Ability to support a wide range of organisms poor, fair, good) 88 MICROBIOLOGY: Laboratory Theory & ApplicationExplanation / Answer
Nutrient Broth
Carbon Source: Dextrose is the fermentable carbohydrate providing carbon and energy, beef extract is also the carbon source.
Nitrogen Source: Peptone contribute organic nitrogen in the form of amino acid and long chain fatty acids
Undefined media: because of complex ingredient beef extract
Ability to support wide range of organisms good
Brain Heart Infusion Broth
Carbon Source: Dextrose is the carbohydrate providing carbon and energy, beef extract also serve as the carbon source.
Nitrogen Source: Proteose Peptone contribute organic nitrogen in the form of amino acid and long chain fatty acids
Undefined because of complex ingredient beef extract
Supports growth of the widest range of organism Good
Glucose Salt Broth
Carbon Source: Gucose is the only carbon source in this medium
Nitrogen Source: Hydroxide and ammonium phosphate is the sole source of nitrogen
it is Defined medium
supports growth of fewest organisms Poor