cell movement

Question 1

diffusion

Answer 1

is the PASSIVE movement of substances from an area of HIGH conc. –> LOW conc. WITH the concentration gradient until equilibrium is achieved
PASSIVE= no energy input required (02,CO2)

Question 1

Osmosis

Answer 1

is the diffusion of H2O through a specialised protein channel called aquaporins
H2O moves from
1) HIGH H20 conc —> LOW H2O conc
2) LOQ solute conc —> HIGH solute conc

HIGH solute conc= LOW H2O conc
LOW solute conc. = HIGH H2O conc