Diffusion

Question 1

what is diffusion?

Answer 1

diffusion is the overall movement of particles from an area of high concentration to an area of low concentration

Question 2

what does it move down?

Answer 2

the concentration gradient

Question 3

diluted

Answer 3

high concentration of water

Question 4

concentrated

Answer 4

low concentration of water

Question 5

what is osmosis?

Answer 5

osmosis is the overall movement of water from an area of high concentration of water to an area of low concentration of water through a partially permeable membrane

Question 6

what does the partially permeable membrane do?

Answer 6

it allows some things through but not others

Question 7

what is active transport?

Answer 7

the molecules move against the concentration gradient from an area of high concentration to an area of low concentration

Question 8

temperature effects diffusion because?

Answer 8

higher temperatures will mean that particles have larger amounts go kinetic energy (they will move around faster) which will speed up the rate of diffusion

Question 9

Concentration gradient effects diffusion because?

Answer 9

the greater the difference in concentration (I.e the steeper the concentration gradient) the faster the rate of diffusion will be

Question 10

surface area to volume ratio effects diffusion because?

Answer 10

the greater the surface area to volume ratio the faster the rate of diffusion