Neco 2020 Biology Question 25
Practice objective / multiple choice question 25 from the 2020 Neco Biology examination.
A bacterial culture is monitored by measuring its optical density (OD). At time \(0\) h the OD is \(0.05\), which corresponds to a cell concentration of \(1\\times10^{6}\) cells·mL\(^{-1}\). At \(2\) h the OD is \(0.20\), at \(4\) h it is \(0.80\), and at \(6\) h it is \(3.20\). Assuming exponential growth during the first \(4\) h, (a) calculate the generation time in minutes, and (b) predict the cell concentration after \(8\) h if the same growth rate continues.
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About This Question
This is Neco 2020 Biology Question 25. It is one of the objective questions from the 2020 Neco Biology examination.
Difficulty level: Hard .
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