Waec Model Questions Vol1 2023 Biology Question 18
Practice objective / multiple choice question 18 from the 2023 Waec Model Questions Vol1 Biology examination.
A bacterial culture starts with 2 × 10⁵ cells ml⁻¹. After 3 h the concentration is 1.6 × 10⁶ cells ml⁻¹. Assuming exponential growth, (a) calculate the generation time in minutes; (b) a bacteriophage then reduces the population by 75 % after 2 h of further growth. If the culture continues to grow with the same generation time for another 2 h, what is the final cell concentration?
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This is Waec Model Questions Vol1 2023 Biology Question 18. It is one of the objective questions from the 2023 Waec Model Questions Vol1 Biology examination.
Difficulty level: Hard .
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