Objectives: Differential Media

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created 5 years ago by OceansVoice
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1

Defined media

a medium whose exact chemical composition is known. ingredients have been identified and quantified.

2

undefined media

complex; ingredients in a media have not been identified or quantified

3

all purpose media

supports most bacterial growth
(tryptic soy agar)

4

differential media

contain a component that can be used by some microorganismms but not by others

5

Explain why there is no universal medium capable of growing all bacteria?

due to the differences in bacteria.. whether they're gram positive, gram negative, etc.

6

Whats the difference between a water soluble and a water insoluble pigment?

Water soluble pigments dissolve in water. Water insoluble pigments do not dissolve in water

7

exoenzyme

is an enzyme that is secreted by a cell and functions outside of that cell. used by bacteria to digest food

8

endoenzyme

is an enzyme that functions within the cell in which it was produced

9

Name 4 all purpose medias

1. Starch agar
2. Blood agar
3. Eosin-Methylene Blue agar
4. Mannitol Salt agar