Diffusion

Question 1

what is diffusion?

Answer 1

diffusion is the net movement of particles from an area of higher concentration to an area of lower concentration

Question 2

what is net movement?

Answer 2

the movement of a substance from one place to another

Question 3

diffusion can happen in….?

Answer 3

both gases in liquids

Question 4

what type of process is diffusion?

Answer 4

passive process
(meaning it doesn’t require any nrg frm the cell)

Question 5

3 factors that affect the rate of diffusion

Answer 5

-concentration gradient
-higher temperatures
-surface area

Question 6

concentration gradient?

Answer 6

-the difference in concentration between 2 places
(greater difference, higher the diffusion)

Question 7

higher temperatures?

Answer 7

-give more energy to particles
-move around faster
-diffuse more quickly
(higher temp, higher rate of diffusion)

Question 8

surface area?

Answer 8

-larger surface area, higher rate of diffusion