Question

Describe how diffusion distance, SA, volume, SA:V ratio vary with increasing organism size.

Accepted Answer

Increasing organism size:Diffusion distance between cells where oxygen is needed and the supply of oxygen increasesSurface area increasesVolume increases at a faster rate than surface area so the SA:V ratio will decrease

Front	Describe how diffusion distance, SA, volume, SA:V ratio vary with increasing organism size.
Back	Increasing organism size: Diffusion distance between cells where oxygen is needed and the supply of oxygen increases Surface area increases Volume increases at a faster rate than surface area so the SA:V ratio will decrease

Increases Diffusion Sa:V Ratio Increasing Organism Oxygen Surface