The table shows the approximate widths of three structures.
Table
| Structure | Width |
|---|---|
| Cell | 0.012 mm |
| Organelle | 1500 nm1500\,\mathrm{nm}1500nm |
| Molecule | 3000 pm3000\,\mathrm{pm}3000pm |
Which gives the cell-to-organelle width ratio and the organelle-to-molecule width ratio?
8 : 1 and 2 : 1
8 : 1 and 500 : 1
80 : 1 and 500 : 1
80 : 1 and 2 : 1
48 exam-style questions on Edexcel GCSE Biology 1.2 Number, size and scale, covering 1.2.1 Number, size and scale with estimations and 1.2.2 Quantitative units in relation to cells. Each one has a worked solution and a mark scheme showing where the marks go.