Studied by 2 people
Bacteria must be grown on ___ in order to characterize and identify it.
culture media
Bacteria require?
sources of energy, carbon, nitrogen, minerals, and growth factors
Most bacteria are ___ meaning they require organic compounds for carbon and energy sources.
chemoheterotrophs
Bacteria exhibit a wide range of nutritional requirements, therefore the addition of ___ like milk, serum, blood and tomato juice is need.
enriching nutrients
What are growth factors?
organic compounds such as vitamins or amino acids that are incorporated into a cell without alteration
The first bacterial cultures were grown in what type of media?
broth/liquid like infusions and blood
Who attempted to culture bacteria on potato slices when they realized the need for solid media?
Robert Koch
When Robert Koch realized that some bacteria wouldn't grow on potato slices, he ___.
added gelatin to liquid media
How come the addition of gelatin to liquid media didn't work?
gelatin liqueifed under incubation conditions
Who suggested the use of agar as solidfying agent?
Angelina Hess
What is the most commonly used solifying agent in culture media?
agar
Why is aseptic technique used?
to exclude contaminants; prevention of unwanted microorganisms in laboratory and medical procedures
