osmosis Flashcards
cells with cell walls
isotonic solution
water concentration is equal inside and outside the cell
rates of diffusion are EQUAL in both directions
cells without cell walls
isotonic solution
rates of diffusion are EQUAL in both directions
cells with cell walls
hypotonic solution
net diffusion of water is INTO the cell
swells the protoplast and pushes it tightly against the wall
the wall usually prevents the cell from bursting
cells without cell walls
hypotonic solution
diffusion of water INTO the cell causes it to SWELL and may BURST it if no mechanism exists to remove the water
cells with cell walls
hypertonic solution
water diffuses OUT of the cell and SHRINKS the cytoplasmic membrane AWAY from the cell wall in the process known as PLASMOLYSIS
cells without cell walls
hypertonic solution
water diffusing OUT of the cell causes it to SHRINK and become DISTORTED