Cell Cultures and Characteristics Which of the following techniques may be performed quantitatively to determine the number of bacteria of a particular type? Both (a) and (b) Pour plate Spread plate Streak plate technique Both (a) and (b) Pour plate Spread plate Streak plate technique ANSWER DOWNLOAD EXAMIANS APP
Cell Cultures and Characteristics Intestinal bacteria can grow in the presence of __________ whereas nonintestinal bacteria are usually inhibited. sugars low levels of nitrogen bile salts low concentration of various dyes sugars low levels of nitrogen bile salts low concentration of various dyes ANSWER DOWNLOAD EXAMIANS APP
Cell Cultures and Characteristics In the process of freeze drying, a dense cell suspension is placed in small vials and is frozen at -30 to -48°C -60 to -78°C -48 to -58°C -20 to -30°C -30 to -48°C -60 to -78°C -48 to -58°C -20 to -30°C ANSWER DOWNLOAD EXAMIANS APP
Cell Cultures and Characteristics To select cholera-causing bacterium, Vibrio cholerae, the pH of the medium is maintained at a pH of 8.90 3.5 8.5 6.79 8.90 3.5 8.5 6.79 ANSWER DOWNLOAD EXAMIANS APP
Cell Cultures and Characteristics Which of the following is used for the proper maintenance and preservation of pure cultures? Periodic transfer to fresh media Preservation by lyophilization All of these Preservation by overlaying cultures with mineral oil Periodic transfer to fresh media Preservation by lyophilization All of these Preservation by overlaying cultures with mineral oil ANSWER DOWNLOAD EXAMIANS APP
Cell Cultures and Characteristics Which of the following bacteria dies quickly after drying? Mycobacterium tuberculosis Pseudomonas aeruginosa Treponema pallidium Staphylococcus aureus Mycobacterium tuberculosis Pseudomonas aeruginosa Treponema pallidium Staphylococcus aureus ANSWER DOWNLOAD EXAMIANS APP
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