B1.6 - Diffusion Flashcards
1
Q
Diffusion
A
The net movement of particles from an area of high to low concentration
2
Q
What causes Diffusion?
A
The random movement of particles. This is a passive process meaning no energy is needed
3
Q
Concentration Gradient
A
A difference in concentration of a particle between two areas. A higher gradient means that the diffusion will take place quicker.
4
Q
What are the three main factors that affect diffusion?
A
- Concentration Gradient
- Temperature
- Surface Area
5
Q
What is a Surface Area to Volume Ratio used for?
A
A higher surface area causes diffusion to occur faster. Objects with a large surface area but with little volume will diffuse best
