diffusion Flashcards
diffusion
net movement of molecules from area of high to low concentration
osmosis
movement of free water particles from area of high to low concentration over semi permeable membrane
water potential
measure of conc of free water molecules in solution
isotonic
solution outside cell has same water potential as inside- no net movement
hypotonic
solution outside cell has higher water potential than inside- net movement of free water particles into cell
hypertonic
solution outside cell has lower water potential than inside- net movement of free water particles out of cell
if plant loses a lot of water and connect replace via roots…
the cells of plant will slowly become plasmolysed
active transport
movement of molecules from area of low to high conc using energy
against conc gradient
carrier molecule/protein