B1.6 Diffusion Flashcards
1
Q
What is diffusion ?
A
Diffusion is the NET movement of particles from a HIGH concentration to a LOW concentration
2
Q
Where can diffusion take place?
A
In a cell membrane more specifically a partially permeable cell membrane
3
Q
What is a partially permeable membrane
A
Only allowing some molecules to diffuse through
4
Q
What type of process is diffusion? What does this mean?
A
Passive process meaning it doesn’t require any energy from the cell
5
Q
What are the three factors that affect the rate of diffusion ?
A
Concentration: the lager the concentration gradient the higher the rate of diffusion
Temperature: higher temp means particles have more energy so diffuse quicker
Surface area: larger the surface area the higher the rate of diffusion
