Question 1
Paper 2Easy5 marksCubes of different side lengths are used as simplified models of cells. Figure 1 shows the surface-area-to-volume ratio of the cubes.
(a)[1]
Read the surface-area-to-volume ratio for a cube with a side length of 2 cm. Give the unit.
(b)[1]
Determine the side length of a cube with a surface-area-to-volume ratio of 1.5 cm⁻¹. Give the unit.
(c)[3]
Explain how the pattern in Figure 1 suggests a constraint on the size of a cell.