Hypertonic
Having a higher concentration of solute than another solution.
Hypotonic
Having a lower concentration of solute than another solution
facilitated diffusion
diffusion of molecules assisted by protein channels that pierce a cell membrane
Active transport
The movement of materials through a cell membrane using energy.
Endocytosis
uptake of liquids or large molecules into a cell by inward folding of the cell membrane.
Exocytosis
Process by which a cell releases large amounts of material
Phagocytosis
Cell eating
Pinocytosis
Cell drinking
cell membrane
controls what goes in and out of the cell
Cell wall
A rigid structure that surrounds the cell membrane and provides support to the cell
lipid bilayer
double-layered sheet that forms the core of nearly all cell membranes
Concentration
a measure of the amount of solute in a given amount of solvent or solution
Diffusion
the spreading of something more widely.
Equilibrium
A state of balance
Osmosis
Diffusion of water
Isotonic
when the concentration of two solutions is the same