osmosis Flashcards
(7 cards)
What is osmosis
osmosis is the net movement of water molecules across a partially permeable membrane from a region of higher water concentration to a region of lower water concentration
what is diffusion
diffusion is the net of particles from an area of high concentration to an area of low concentration
what is a partially permeable membrane
its a membrane with very small holes in it - only tiny molecules such as water can pass through and bigger molecules such as sucrose can’t.
what is water concentration
the amount of water, as compared to other molecules, like sugar and salts that are dissolved in water
if there is more water than solutes what is the concentration
high water concentration
low solute concentration
is there is more solutes than water what is the concentration
low water concentration
hiw solute concentration
what is osmosis
osmosis is the process of inside the cell the water concentration being low and outside the cell the water concentration high. the higher concentration water molecules diffuse through the partially permeable membrane into the cell in the low water concentration