Diffusion Flashcards
0
Q
Does it need a membrane - diffusion (simple)
A
No
1
Q
Diffusion
A
The passive movement of molecules from an area of high concentration gradient to an area of low concentration gradient
2
Q
Factors that affect the rate of diffusion
A
Concentration gradient
Temperature
Surface area to volume ratio
3
Q
Osmotic pressure
A
Pressure which must be exerted upon a solution to prevent the passage of distilled water into it across the semi permeable membrane
4
Q
Turgor pressure
A
The internal pressure exerted on the walls of a cell by water.
5
Q
Osmosis
A
Passive net movement of free water molecules from a hypotonic to a hypertonic solution across a semi permeable membrane
