Table 1 shows information about five different cells, labeled A to E.
| Cell | Surface area in μm2\mu\text{m}^2μm2 | Volume in μm3\mu\text{m}^3μm3 | Surface area to volume ratio |
|---|---|---|---|
| A | 1.15×1021.15 \times 10^21.15×102 | 3.83×1013.83 \times 10^13.83×101 | 3:13:13:1 |
| B | 4.52×1014.52 \times 10^14.52×101 | 1.51×1001.51 \times 10^01.51×100 | 30:130:130:1 |
| C | 6.72×10−26.72 \times 10^{-2}6.72×10−2 | 1.45×10−31.45 \times 10^{-3}1.45×10−3 | X:1X:1X:1 |
| D | 8.16×10−38.16 \times 10^{-3}8.16×10−3 | 5.44×10−45.44 \times 10^{-4}5.44×10−4 | 15:115:115:1 |
| E | 9.12×10−49.12 \times 10^{-4}9.12×10−4 | 1.52×10−41.52 \times 10^{-4}1.52×10−4 | 6:16:16:1 |
Calculate the value of XXX in Table 1.
Give your answer to the nearest whole number.
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.