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Oriole-CellTransport

cell transport vocabulary

TermDefinition
active transport type of movement of particles into or out of the cell that DOES require energy input from the cell
Brownian movement random motion of particles due to the orbit and spin of electrons around the nucleus of all atoms involved
diffusion movement of particles from an area of high concentration to an area of lower concentration; passive transport
endocytosis process of moving large 'chunks' of material into the cell that forms vesicles; active transport
equilibrium condition that is indicated when concentrations are the same inside and outside the cell; water moves in and out at the same rate
exocytosis process of moving large 'chunks' of material out of the cell through the use of vesicles; active transport
facilitated diffusion type of passive transport that requires the presence of carrier molecules or channel proteins to allow diffusion of particles
fluid mosaic model term that is used to describe the consistency and make-up of the plasma membrane of cells
hypertonic water moves out faster than in & the cell shrinks; solution with a higher solute concentration than inside the cell
hypotonic solution with a lower solute concentration than inside the cell; water moves in faster than out & the cell swells
isotonic same concentration inside and outside the cell; is at equilibrium and water moves in and out at the same rate
osmosis type of diffusion that only involves water moving across a semipermeable membrane from high to low concentration
passive transport type of movement of particles in or out of a cell that does NOT require energy input from the cell
permease proteins that allow for specific materials to diffuse into or out of a cell
phagocytosis process of the cell 'eating' solid food particles; type of active transport
pinocytosis process of the cell 'drinking' liquid droplets; type of active transport
plasma membrane(s) another term for 'cell membrane'; is a phospholipid bilayer with embedded proteins
plasmolysis when a plant cell loses too much water, the cell shrinks and its plasma membrane 'breaks away' from the cell wall
proton pump protein complex in the cell membrane that actively moves positive atomic particles across the membrane (low to high)
semipermeable some things are allowed to pass through, while others are not able to cross
Created by: nstevens
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