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23 Cards in this Set

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Passive Transport
Type of transport that requires no energy
Concentration Gradient
The difference in concentration of high and low
Equilibrium
State where molecules are even at concentrations
diffusion
the movement of molecules from an area of high concentration to an area of low concentration
osmosis
Process by which water molecules move from high concentration to low concentration
hypertonic
Higher Concentration of solutes outside cell, lower concentration of solutes inside the cell therefore water moves out of the cell
hyotonic
Lower concentration of solutes outside Higher Concentration of solutes inside the cell; therefore water will travel into the cell
isotonic
state where the concentratioon levels of the solutes reach equilibrium and there is not more movemnet of water into or out of the cell.
ion channel
Passive transport involving the movement of ions into and out of the cell
carrier protein
Protein used to transport specific substances
facilitated diffusion
Type of passive transport that requires no energy
active transport
type of transport that requires energy
sodium-potassium pump
carrier potein used in active transport
endocytosis
taking solids or liquids into a cell
exocytosis
expelling of waste and other products
receptor protein
binds to a signal molecule, enabling the cell to respond to the signal molecule
second messenger
acts as a signal molecule in the cytoplasm
turgor pressure
pressure created by the central vacuole
contractive vacuole
organelle in paramecium that rids extra water
pinocytosis
taking in of fluids into a cell
phagacytosis
process of taking in solids into a cell
Plasmolysis
shrinking away of cell membrane from cell wall
Vescile
Small membrane bound pouch for transport