A) \[175\times {{10}^{5}}\]
B) \[125\times {{10}^{5}}\]
C) \[48\times {{10}^{5}}\]
D) \[32\times {{10}^{5}}\]
Correct Answer: D
Solution :
Bacteria generally divides by binary fission, in this one cell divide to produce two cells. \[1\times {{10}^{5}}cell\xrightarrow[1stdiv.]{}2\times {{10}^{5}}\xrightarrow[2nddiv.]{}\] \[4\times {{10}^{5}}\xrightarrow[3rddiv.]{}8\times {{10}^{5}}\xrightarrow[4thdiv.]{}16\times {{10}^{5}}\] \[\xrightarrow[5thdiv.]{}32\times {{10}^{5}}\] So, cell concentration per mL after 175 minutes will be \[32\times {{10}^{5}}\].
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