vocab Flashcards
selectively permeable
allowing water to freely pass thru but regulating movement of solutes
solvent
dissolving agent
solute
dissolved substance
diffusion
physical process molecules move from high concentration to low
osmosis
diffusion of molecules thru selectively permeable membrane
hypotonic
water flows in
hypertonic
water flows out
isotonic
no water flow
turgor pressure
pressure of protoplast on cell wall owing to uptake of water
osmolarity
concentration of nonpenetrating solutes
water potential
potential energy from water
Brownian movement
observe large particles suspended in water in motion simplar to that observed by Brown
lysis
cells swell and membrane burst
crenate
cells shrivel and appear bumpy
plasmolysis
plant cell is placed in a hypertonic solution, water moves out of cell; protoplast shrinks and pull away from cell wall