B1.7 - Osmosis (Finished) Flashcards
What is osmosis?
The movement of water molecules across a partially permeable membrane from (a region of) high water concentration to low water concentration
What is the concentration of water in a dilute solution?
High, more water less other
What is the concentration of water in a concentrated solution?
Low, less water more other
What is an isotonic solution?
The concentration of solutes outside the cell is the same as the internal concentration
What is a hypotonic solution?
A solution in which the concentration of solutes outside the cell is lower than the internal concentration
What is a hypertonic solution?
A solution where the the concentration of solutes outside the cell is higher than the internal concentration
What is it called when a cell looses too much water?
Shrivelling
What is it called when a cell gains too much water?
Bursting