diffusion, osmosis and active transport Flashcards
1
Q
What is diffusion?
A
The spreading out of particles of any substance in solution or particles of a gas resulting in a net movement from a higher concentration to a lower concentration.
2
Q
What factors effect diffusion?
A
Concentration
Temperature (particles have more energy)
Surface area of cell
3
Q
When is diffusion at its fastest?
A
At a high temperature, with a bigger concentration gradient and a large surface area.
4
Q
How does oxygen leave a leaf?
A
Via diffusion.
