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Cell Transport

Diffusion, Osmosis, and more

QuestionAnswer
Semipermeable membrane a membrane that will allow certain molecules or ions to pass through it by diffusion and occasionally specialized "facilitated diffusion.
Diffusion The movement of molecules from an area of high concentration to an area of low concentration
Concentration Gradient The difference between the amount of a particular molecule in one area and the amount of the same molecule across a membrane.
Osmosis The diffusion of water
Hypertonic solution A solution where the concentration of solutes outside the cell is HIGHER than the concentration of solutes inside the cell.
Hypotonic solution A Solution where the concentration of solutes is LOWER outside of the cell than the concentration of solutes inside the cell.
Isotonic solution A solution where the concentration of solutes is equal on both sides of a cell membrane
Facilitated diffusion A type of passive transport that uses carrier proteins.
Active Transport The process of using energy to carry molecules across a membrane
Bulk transport The process by which large molecules, food and other substances are packaged and moved across a membrane.
Endocytosis A form of bulk transport where large molecules, food or other substances are brought INTO a cell.
Exocytosis A form of bulk transport where large molecules, food or other substances are taken OUTSIDE a cell.
Pinocytosis The bulk transport of fluids.
Phagocytosis The bulk transport of solids.
Created by: Mr_Bird
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