The table shows measurements of four cells.
Table
| Cell | Length |
|---|---|
| P | 0.032 mm |
| Q | 28000 nm28000\,\mathrm{nm}28000nm |
| R | 0.0026 cm |
| S | 35 μm35\,\mu\mathrm{m}35μm |
Which pair differs in length by 2 μm2\,\mu\mathrm{m}2μm?
P and Q
P and S
R and S
Q and R
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.