A food-testing laboratory keeps a sample of cooked soup at a suitable temperature. The soup contains enough nutrients for the bacteria to divide at a constant mean rate.
| Time since the sample was prepared in minutes | Number of bacteria |
|---|---|
| 40 | 2400 |
| 100 | 19 200 |
Calculate the predicted number of bacteria in the sample after 180 minutes.
Give your answer in standard form.
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.