Gce Model Questions Vol1 2025 Biology Question 46
Practice objective / multiple choice question 46 from the 2025 Gce Model Questions Vol1 Biology examination.
A batch culture of bacteria follows the logistic growth model \( \frac{dN}{dt}=rN\left(1-\frac{N}{K}\right) \) with intrinsic rate constant \( r = 0.035\ \text{min}^{-1} \) and carrying capacity \( K = 8.0\times10^{8} \) cells. At time \( t = 0 \) the cell number is \( N_{0} \). After 120 minutes the cell number is measured to be \( 2.0\times10^{8} \) cells. What was the initial cell number \( N_{0} \) (to two significant figures)?
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This is Gce Model Questions Vol1 2025 Biology Question 46. It is one of the objective questions from the 2025 Gce Model Questions Vol1 Biology examination.
Difficulty level: Hard .
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