To model how cell size affects diffusion, a student used agar cubes of different sizes. The surface area, volume, and surface area to volume (SA:V) ratio for each cube were recorded in Table 1.
Table 1
| Cube side length (cm) | Surface area / SA (cm2^22) | Volume / V (cm3^33) | SA:V ratio |
|---|---|---|---|
| 3 | 54 | 27 | X |
| 5 | 150 | 125 | 1.2 : 1 |
| 6 | 216 | 216 | 1 : 1 |
Calculate the SA:V ratio (X) for the 3 cm cube shown in Table 1.
