The need for gas exchange surfaces Flashcards
(2 cards)
1
Q
Why is gas exchange important?
A
- Living things need oxygen for respiration
- Its how gases mover between an organism and its environment
2
Q
Whats makes a good gas exchange surface?
A
- Large SA
- Short distance of diffusion
- Moist surface (dissolve in water which helps them move across membrane)
- Good blood supply (maintain concentration gradient)
