Gce Model Questions Vol1 2024 Biology Question 35
Practice objective / multiple choice question 35 from the 2024 Gce Model Questions Vol1 Biology examination.
A bacterial culture starts with 5 × 10⁵ cells. Under optimal conditions the generation (doubling) time is 30 min. After 2 h an antibiotic is added that reduces the growth rate by 30 %, i.e. the effective generation time becomes longer by the factor 1/(1‑0.30). Assuming exponential growth throughout, how many cells are present after a total of 8 h? Give your answer in scientific notation to two significant figures.
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This is Gce Model Questions Vol1 2024 Biology Question 35. It is one of the objective questions from the 2024 Gce Model Questions Vol1 Biology examination.
Difficulty level: Hard .
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