biology osmosis grade 9

hypotonic

more water inside of the cell than the outside of the cell

exocytosis

taking materials out of the cell

endocytosis

taking materials into the cell by enfolding

osmosis

movement of WATER from high to low concentration

isotonic

same rate of water is inside of the cell than the outside

active transport

materials moving against concentration current

hypertonic

more water on outside of cell then inside the cell

diffusion

spreading of molecules from high to low concentration

facilitated diffusion

speeds passage of a solute by providing passage through membrane

hydrophobic

water fearing (non polar)

hydrophilic

water loving (polar)

cholesterol

regulates the fluidity of the membrane (increases when cold, decreases when hot)