Neco Model Questions Vol1 2025 Biology Question 49
Practice objective / multiple choice question 49 from the 2025 Neco Model Questions Vol1 Biology examination.
A bacterial culture starts with \(5\times10^{5}\) cells. For the first 4 hours the bacteria double every 30 minutes. After that, nutrient depletion causes the generation time to double (i.e., 60 minutes) for the next 4 hours. Assuming exponential growth in each phase, how many cells are present after the full 8‑hour period? Express your answer in scientific notation to two significant figures.
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This is Neco Model Questions Vol1 2025 Biology Question 49. It is one of the objective questions from the 2025 Neco Model Questions Vol1 Biology examination.
Difficulty level: Hard .
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