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The growth of bacteria (lactobacillus) in milk leads to curd formation. A minimum bacterial population density of 0.8 (in suitable units) is needed to form curd. In the graph below, the population density of lactobacillus in 1 liter of milk is plotted as a function of time, at two different temperatures, 25°C and 37°C. Consider the following statements based on the data shown above: I. The growth in bacterial population stops earlier at 37°C as compared to 25°C II. The time taken for curd formation at 25°C is twice the time taken at 37°C. Which one of the following options is correct?

The growth of bacteria (lactobacillus) in milk leads to curd formation. A minimum bacterial population density of 0.8 (in suitable units) is needed to form curd. In the graph below, the population density of lactobacillus in 1 liter of milk is plotted as a function of time, at two different temperatures, 25°C and 37°C. Consider the following statements based on the data shown above: I. The growth in bacterial population stops earlier at 37°C as compared to 25°C II. The time taken for curd formation at 25°C is twice the time taken at 37°C. Which one of the following options is correct? Correct Answer Only I

From the graph,

Statement (i) is correct,

The time taken for curd formation @25°C = 120 min,

The time taken for curd formation @ 37°C = 80 min, hence (ii) is incorrect.

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