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 -20 to -30°C -60 to -78°C -48 to -58°C -30 to -48°C -20 to -30°C -60 to -78°C -48 to -58°C ANSWER DOWNLOAD EXAMIANS APP
Cell Cultures and Characteristics Intestinal bacteria can grow in the presence of __________ whereas nonintestinal bacteria are usually inhibited. sugars bile salts low concentration of various dyes low levels of nitrogen sugars bile salts low concentration of various dyes low levels of nitrogen ANSWER DOWNLOAD EXAMIANS APP
Cell Cultures and Characteristics The concentration of agar to obtain semi solid media is >10%but<20% 0.5% or less 1.5-20% >10% >10%but<20% 0.5% or less 1.5-20% >10% ANSWER DOWNLOAD EXAMIANS APP
Cell Cultures and Characteristics Which of the following techniques may be performed quantitatively to determine the number of bacteria of a particular type? Spread plate Both (a) and (b) Pour plate Streak plate technique Spread plate Both (a) and (b) Pour plate Streak plate technique ANSWER DOWNLOAD EXAMIANS APP
Cell Cultures and Characteristics Agar is used for solidifying culture media because it does not affect by the growth of bacteria All of these it does not add to the nutritive properties of the medium the melting and solidifying points of agar solution are not the same it does not affect by the growth of bacteria All of these it does not add to the nutritive properties of the medium the melting and solidifying points of agar solution are not the same 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 Preservation by overlaying cultures with mineral oil All of these Periodic transfer to fresh media Preservation by lyophilization Preservation by overlaying cultures with mineral oil All of these ANSWER DOWNLOAD EXAMIANS APP
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