Exchange surfaces Flashcards
1
Q
True or false
A
The larger an organism is, the smaller its surface areas to volume ratio
2
Q
Do single-celled organisms have a large or small surface area
A
Large
3
Q
Do multi-cellular organisms have a small or large surface area
What would this mean
A
Small
Since there is not enough surface to supply their entire volume, there would need some sort of exchange surface for diffusion
4
Q
How are exchange surfaces adapted
A
- thin membrane for a short distance to diffuse
- Large surface area so lots of substances can diffuse at once
