A biologist is checking printed micrographs of four plant cells, A, B, C and D. The actual length of each cell was known, and the length of its printed image was measured with a ruler.
| Cell | Length of printed image in mm\text{mm}mm | Actual length of cell in μm\mu\text{m}μm |
|---|---|---|
| A | 18 | 90 |
| B | 21 | 70 |
| C | 16 | 64 |
| D | 20 | 50 |
Which cell was recorded at the lowest magnification?
cell B
cell D
cell A
cell C
130 exam-style questions on OCR GCSE Biology 1.1 Cell structures, covering 1.1.1 Viewing cells with light microscopes, 1.1.2 Sub-cellular structures and functions, and 1.1.3 Electron microscopy and resolution. Each one has a worked solution and a mark scheme showing where the marks go.