Imagine a spherical cell with a radius of 10 μm. What is the cell's surface area in μm²?
Its volume, in μm³? (Note: For a sphere of radius r, surface area = 4πr² and volume = 4/3πr³.). Remember that the value of π is 3.14.)
What is the ratio of surface area to volume for this cell? Now do the same calculations for a second cell, this one with a radius of 20 μm. Compare the surface-to-volume ratios of the two cells.
How is this comparison significant to the functioning of cells?