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Honors Bio Ch7, Pt 2

Cell Transport

TermDefinition
Hypertonic Referring to a solution that is more concentrated than another
Aquaporin Protein that makes up channels for the passage of water
Hypotonic Referring to a solution that is less concentrated than another
Isotonic Referring to a solution that has the same concentration as another
Exocytosis Release of material outside the cell via fusion of a vacuole or vesicle with the cell membrane
Diffusion Random movement of a substance from an area of high concentration to an area of low concentration
Endocytosis Process of taking material into the cell via infolding of the plasma membrane
Osmosis Diffusion of water through a semi-permeable membrane
Active transport Energy-requiring movement of materials against a concentration gradient
Semi-permeable Allowing passage of certain substances while preventing the passage of others
Facilitated diffusion Passage through a protein channel that does not require energy
Receptor Protein that binds to signalling molecules and transmit a signal
Passive transport Non-energy-requiring movement of materials along a concentration gradient
Phagocytosis form of bulk transport in which materials are engulfed by amoebae and certain white blood cells
Created by: KES-HFHS
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