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GATE 2025 BT – Question 28

Fundamentals of Biological Engineering · Bioreaction Engineering: Kinetics of cell growth, substrate utilization and product formation, structured and unstructured models · 1 mark · Numerical answer

If the doubling time of a bacterial population is 3 hours, then its average specific growth rate during this period is _____ h$^{-1}$. (Round off to two decimal places)

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Correct answer: 0.22 to 0.24

Explanation

In exponential growth $\mu = \frac{\ln 2}{t_d} = \frac{0.693}{3} = 0.23$ h$^{-1}$.