Topic Summaries

Surface area to volume ratio

GCSE > Biology > Eduqas > GCSE Biology Topic Summaries > Transport in cells > Surface area to volume ratio
Previous Module
Next Module
  • A large surface area to volume ratio increases the rate of diffusion.
  • To calculate surface area to volume ratio, divide the surface area by the volume.
  • Single-celled organisms have a large surface area to volume ratio so molecules can move into and out of the cell to meet the needs of the organism. •
  • Multicellular organisms have a small surface area to volume ratio so require an exchange surface and transport system to move substances around the organism.

Unlock Surface area to volume ratio

Subscribe to SnapRevise+ to get immediate access to the rest of this resource.

Premium accounts get immediate access to this resource.

Previous Module
Next Module