Simple diffusion factors Flashcards
1
Q
How does surface area a factor in simple diffusion rate
A
The larger the surface area of the exchange surface the higher the rate of the simple diffusion as more particles can cross the surface at same time
2
Q
how does concentration gradient a factor in simple diffusion rate
A
The greater the difference in concentration gradient the faster the rate of simple diffusion
As diffusion occurs the concentration gradient decreases until a equilibrium is reached. This causes the rate to steadily decrease. But if the gradient is kept high rate will stay quick
3
Q
How does the thickness of exchange of surface affect simple diffusion
A
The thinner the exchange surface, the higher the rate of simple diffusion( due to shorter distance for molecules
