An environmental scientist monitors one species of bacterium in a closed water-treatment vessel. No bacteria enter or leave the vessel.
| Time | Estimated number of bacteria |
|---|---|
| 09:15 | 2 500 000 000 |
| 12:15 | 160 000 000 000 |
Conditions remain suitable and the mean division time does not change.
Calculate the expected number of bacteria in the vessel at 14:15.
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.