Cell transport

Question 1

what is diffusion

Answer 1

spreading out of particles, resulting in a net movement from a hight concentration to a low concentration

Question 2

what is the movement of particles like in diffusion

Answer 2

particles move down a concentration gradient - high to low

Question 3

what is osmosis

Answer 3

diffusion of water, from dilute to a partially permeable membrane

Question 4

what is the movement of particles like in osmosis

Answer 4

moves from lower solute conc. to a hight solute conc.

Question 5

what is active transport

Answer 5

movement of particles from a more dilute solution to a more conc. solution using energy from respiration

Question 6

what is the movement of particles like in active transport

Answer 6

particles are moving against the conc. gradient - from low conc. to high

Question 7

which three factors affect the rate of diffusion

Answer 7

1) difference in conc. - the steeper the conc., the faster the rate
2) temp - higher the temp, the faster the diffusion
3) surface area of the membrane - the larger the area, the faster the diffusion