Table 1 shows information about five different cell types found in eukaryotic organisms.
| Cell Type | Surface area in μm2\mu\text{m}^2μm2 | Volume in μm3\mu\text{m}^3μm3 | Surface area to volume ratio |
|---|---|---|---|
| Palisade mesophyll cell | 1.25×1041.25 \times 10^41.25×104 | 1.56×1041.56 \times 10^41.56×104 | 0.8:10.8:10.8:1 |
| Liver hepatocyte | 4.12×1034.12 \times 10^34.12×103 | 5.15×1035.15 \times 10^35.15×103 | 0.8:10.8:10.8:1 |
| Human erythrocyte | 1.36×1021.36 \times 10^21.36×102 | 9.07×1019.07 \times 10^19.07×101 | 1.5:11.5:11.5:1 |
| Macrophage | 4.85×1024.85 \times 10^24.85×102 | 1.42×1011.42 \times 10^11.42×101 | X:1X:1X:1 |
| Saccharomyces cerevisiae | 6.45×1016.45 \times 10^16.45×101 | 3.58×1013.58 \times 10^13.58×101 | 1.8:11.8:11.8:1 |
Calculate the value of XXX in Table 1.
Give your answer to the nearest whole number.
Practise AQA GCSE Biology Cell structure with exam-style questions for Foundation and Higher tier. 51 questions covering Eukaryotes and prokaryotes, Animal and plant cells, Cell specialisation, Cell differentiation, Microscopy, and Culturing microorganisms (biology only), matched to the AQA GCSE Biology (8461) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.