cell diffusion and osmosis

Question 1

diffusion

Answer 1

net movement of particles from a higher concentration to a region of lower concentration, down a concentration gradient till they are evnely distributed (equilibirum)

Question 2

concentration gradient

Answer 2

difference in concentration between 2 areas

Question 3

how does diffusion occur

Answer 3

molecules move down a concentration gradient from a region of higher concentration to a region of lower concentration
no energy input is required as particles are already in motion hence called passive transport

Question 4

factors affecting diffusion

Answer 4

temperature-higher = faster
states of matter - highest in gases