Gce Model Questions Vol1 2021 Biology Question 49
Practice objective / multiple choice question 49 from the 2021 Gce Model Questions Vol1 Biology examination.
A bacterial infection grows according to \(N(t)=N_0 e^{kt}\) with \(k = 0.2\ \text{h}^{-1}\). At the start (\(t=0\)) the population is \(N_0 = 1.0 \times 10^{6}\) cells. An antibiotic is given every 6 hours; each dose instantly kills 30 % of the bacteria present. Assuming the bacteria continue to grow at the same rate between doses, what is the bacterial population after 24 hours (i.e., after four doses)? Give your answer as an integer rounded to the nearest thousand.
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This is Gce Model Questions Vol1 2021 Biology Question 49. It is one of the objective questions from the 2021 Gce Model Questions Vol1 Biology examination.
Difficulty level: Hard .
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