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1.1 Cell structure

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Question 27

Two sealed samples of vegetable soup contain the same starting number of bacteria. One sample contains species R and the other contains species S. Conditions remain suitable and nutrients do not run out.

Species R has a mean division time of 24 minutes. Species S has a mean division time of 30 minutes. Both populations grow for 4 hours.

A student concludes that the population of species R will be 1.25 times the population of species S because species R divides 1.25 times as often.

Explain why the student's conclusion is incorrect.

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Markscheme

1.1 Cell structure Questions

  1. GCSE
  2. /Biology
  3. /1.1 Cell structure

282 exam-style questions on AQA GCSE Biology 1.1 Cell structure, covering 1.1.1 Eukaryotes and prokaryotes, 1.1.2 Animal and plant cells, 1.1.3 Cell specialisation, 1.1.4 Cell differentiation, 1.1.5 Microscopy, and 1.1.6 Culturing microorganisms. Each one has a worked solution and a mark scheme showing where the marks go.

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