A bacterium divides every 20 minutes at 37 degrees Celsius and every 60 minutes at 25 degrees Celsius.
One cell is grown for 3 hours at each temperature.
How many more bacteria are produced at 37 degrees Celsius than at 25 degrees Celsius?
64
504
512
520
163 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.