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Cell Transport

TermDefinition
semipermeable only some particles enter and exit the cell
cell membrane maintain homeostasis and regulate what comes in and out of the cell
diffusion movement of particles from a high concentration to a low concentration
osmosis the movement of water from a high to low concentration
facilitated diffusion the use of a carrier protein to move substances from a high to low concentration
passive transport a type of movement the does not require energy, moves substances down the gradient from a high to low concentration
active transport a type of movement that requires energy, moves substances against the gradient from low to high
isotonic equal(same) movement of water in and out of the cell
hypertonic less water outside the cell so water leaves the cell and the cell shrinks
hypotonic more water outside the cell so water enters the cell and the cell swells
phagocytosis large particles(food or bacteria) are surrounded and engulfed by the cell membrane
pinocytosis liquid is brought in by a vesicle
exocytosis cell deposits particles outside the cell
active transport examples endocytosis, exocytosis
passive transport examples diffusion, osmosis, facilitated diffusion
Created by: JMHSBIO