Species P has a mean division time of 15 minutes. Species Q has a mean division time of 45 minutes.
One cell of each species is grown in nutrient broth for 3 hours.
How many times greater is the number of species P cells than the number of species Q cells?
3
16
256
4096
139 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.