Biology & Life Sciences
Intermediate

Surface-to-Volume Ratio

Ratio governing cell exchange efficiency.

Formula

SA:V=surface areavolumeSA:V = \frac{\text{surface area}}{\text{volume}}

Variables

SASurface area
VVolume

Example

Smaller cells exchange faster

Did You Know?

As things grow, volume outpaces surface area, the geometric reason giant insects of movies could never breathe.

cell