Definitions
Diffusion
The movement of molecules from an area of high concentration to an area of low concentration
Isotonic
This solution's solute and water concentrations are equal in both solutions.
An animal cell will shrivel and die in this solution
Hypertonic
What is the ratio of water to sugar if there are 24 water molecules and 24 sugar molecules
1:1
If an animal cell were 29% salt what percentage would be water?
71%
Osmosis
The movement of WATER from an area of high concentration to an area of low concentration across a semipermeable membrane
Hypertonic
This solution is a high solute and low water solution compared to the cell
An animal cell will swell and burst in this solution
Hypotonic
What is required for cell to have an active transport
What is a solvent
Substance with the ability to dissolve other substances (solutes) to form a solution
Turgor Pressure
Swelling of a plant cell
Hypotonic
This solution is a low solute and high water solution compared to the cell
There is no net movement of water between the cell and the solution
Isotonic
What is the ratio of water to sugar if there are 15 water molecules and 3 sugar molecules
5 : 1
What is the role of the Central Vacuoles
The central vacuole stores water and regulates turgor pressure.
Equilibrium
The state of balance and stability
Plasmolysis
Shrinking of a plant or animal cell
The cell membrane creates a pressure against the cell wall but does not burst
Hypotonic
What type of transport is used to describe diffusion
What is the role of contractile vacuoles
Is to pump water out of the cell to regulate osmotic pressure.
Cytolysis
Swelling or possible bursting of an animal cell
What is an animal cell called when in an isotonic solution
Normal
This solution makes the plant cell shrink and crumple
Hypertonic
What solution is more concentrated and which one is more diluted.
A: 2:1 Water to sugar ratio
B: 5:1 Water to sugar ratio
A: Concentrated
B: Diluted
What is a solute
A substance that can be dissolved into a solution by a solvent
ex. Sugar