Flashcards in Osmosis And Diffusion Deck (22)
Only allow certain molecules across
NO energy required; occurs only if the membrane is permeable to the substance
The movement of molecules from areas of high concentration to areas of low concentration
Process where water moves across a membrane from high water content (low solute) to low water content (high solute)
Normal; equal amounts of the substance (molecules) are found on each side of the membrane
Cell shrinks; The solution on one side of the membrane contains a greater concentration of molecules compared to the other.
Cells swell; The solution one side of the membrane contains a lower concentration of molecules compared to the other
Hemolysis( hypOtonic solution)
"Burst"; The rupture or destruction of red blood cells ( Occurs in animal cells)
Crenation (hypertonic solution)
Shrinking of the cell (occurs in animal cells)
If starch is present in a solution what color will it turn?
What is an indicator for starch?
Plasmolysis (hypertonic solution)
Plants are placed in a solution containing a high concentration of salt, the water molecules leave the cells , causing them to shrink
Turgor pressure (hypotonic solution)
The pressure of water pushing the plasma membrane against the cell wall of a plant
The movement of water across a semi permeable membrane
If the number of molecules on one side of the membrane contains a greater concentration compared to the other and they will move along a _________ until equal
A solution which contains a greater amount of solute outside the cell is?
A solution which contains a lesser amount of solute outside the cell is?
A plant cell placed in a hypertonic solution is?
An animal cell placed in a hypertonic solution is?
A plant cell placed in distilled water is?