In the biological processes, the time taken by certain virus or bacteria to double its population, is called generation time. In milk, at 37°C, Lactobacillus acidophilus has a generation time of about

Question

In the biological processes, the time taken by certain virus or bacteria to double its population, is called generation time. In milk, at 37°C, Lactobacillus acidophilus has a generation time of about 75 min. The population relative to the initial value at 60 min is (ln 2 = 0.7)

Prashant Kotian · Accepted Answer

Correct answer: B. Rate constant k = ln 2 / 75 = 0.7 / 75 min^-1. Population growth follows N = N0 e^(kt). At t = 60 min, N/N0 = e^((0.7/75) * 60) = e^(0.7 * 0.8) = e^0.56. Therefore, correct answer is B.

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