lab definitions
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| inoculation | intentional introduction of microbes onto nutrient agar or nutrient broth
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| inoculating loop | used to transfer bacteria from a solid medium to broth or from broth to broth
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| inoculating needle | is used to inoculate deep or pick up small isolated colonies from a solid
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| incubation period | time needed for bacteria to grow
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| turbid/turbidity | cloudiness that appears in clear nutrient broth to indicate the growth of bacteria presence of turbidity indicates the growth of bacteria
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| pellicle | "skin" that forms on the top of the broth used by aerobes to stay close to the surface to obtain oxygen they need
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| motility | ability to move demonstrated by an "inverted christmas tree" shape in the deep indication that bacteria moved away from the stab line into the agar
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| streak | horizontal movements in a back & forth fashion made on the petri plate to inoculate agar & spread out bacteria to allow for growth into colonies
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| broth culture | liquid medium used to grow large numbers of bacteria
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| agar slant | solid medium used to store pure cultures
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| agar deep | solid medium used to store anaerobic bacteria and or test for oxygen requirements
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| colony | population of cells that arises from one bacterial cell
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| aseptic technique | used in microbiology to exclude contaminants
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| sterilized | rendered free of all life usually accomplished by autoclave
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| streak plate | a mixed sample of bacteria is streaked over the surface of a solid medium many times
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| pure culture | one containing a single kind of microbe
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Created by:
Caya Belton