Shared Flashcard Set

Details

Diffusion Lab
N/a
14
Biology
Undergraduate 1
09/28/2009

Additional Biology Flashcards

 


 

Cards

Term
The energy of motion, derived from the environment around the particles.
Definition
kinetic energy
Term
The net movement of a solute from a solution with a high solute concentration to a solution of low solute concentration.
Definition
Diffusion
Term
With an increase in particle mass, the rate of diffusion ___
Definition
decreases
Term
As the temperature increases, the rate of diffusion ___
Definition
increases
Term
When the concentration of the solute increases, the rate of diffusion __
Definition
decreases
Term
the diffusion of water through a semi-permeable barrier
Definition
Osmosis
Term
solution that has a greater concentration of solute particles (greater osmotic pressure)than the adjacent solution
Definition
Hypertonic
Term
Solution that generally has a lesser concentration of solute particles (lesser osmotic pressure) than the adjacent solution
Definition
hypotonic
Term
Solutions that have the same solute concentration (osmotic pressure).
Definition
isotonic
Term
When you describe solutions as hypertonic, hypotonic, or isotonic, you are describing their ___.
Definition
tonicity
Term
Large vacuole in the center of the plant cell, whose solution is normally hypertonic to the rest of the cytoplasm and extracellular fluids.
Definition
tonoplast
Term
Pressure caused by the hypertonicity of the tonoplast, maintains a water flow into the cell (tonoplast).
Definition
Turgor pressure.
Term
When the solution outside the cell is hypertonic, and the cytoplasm becomes dehydrated, the chloroplasts becomes centered in the middle of the cell, the tonoplast shrinks and this is called
Definition
plasmolysis
Term
Certain types of solutes are allowed to move across a membrane and others aren't in a process called ___
Definition
dialysis
Supporting users have an ad free experience!