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micro lab #9

lab definitions

QuestionAnswer
petri plates contain solid nutrient media for bacteria to grow & also provide a large surface area for examination of colonies
inoculation intentional introduction of microbes onto nutrient agar or nutrient broth
incubation period time needed for bacteria to grow
turbid/turbidity cloudiness that appears in clear nutrient broth to indicate the growth of bacteria presence of turbidity indicates the growth of bacteria
colony population of cells that arises from a single bacterial cell, Vary in shape,size,color to indicate the different species of bacteria bacteria multiply every 20 min each will contain millions of bacteria
streak horizontal movements in a back & forth fashion made on petri plate to inoculate agar & spread out bacteria to allow for growth into colonies
body samples incubation temp 35-37 Celsius
environmental samples incubation temp 25-30 celsius
whole colony appearance circular,irregular,biconvex(embedded in agar) filamentous,rhizoid(long projections)
margin (edge) entire,undulate,lobate,filamentous,curled
elevation flat,raised,convex,umbonate
Created by: Caya Belton
 

 



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