Flashcards in Lab Osmosis and Diffusion Deck (10)
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1
How do water molecules diffuse
From area of high concentration to low concentration
2
The concentration of water vs solute in aqueous solution
Water decreases when solute increases, vise versa ( since the solute takes up space that would otherwise be full of water.
3
Osmosis
The diffusion of water across a cell membrane
4
The direction water moves depends on
The concentration gradient across the membrane
5
In an aqueous solution water tends to diffuse either into or out of cells. Why
Because the cytoplasmic membrane is permeable to water but impermeable to polar solutes dissolved in the water.
6
Tonicity
Refers to the concentration of solute compared to inside of the cell
7
a solution hypertonic to the cell
High solute/ low water
8
The effect of hypertonic solution on a cell
cell: low solute /high water
The water would diffuse out the cell would shrink
9
Hypotonic
Low solute/High water
10
