a mixture in which the molecules of one substance are evenly dispersed in another

the substance that makes up the greater part of the solution

the substance dissolved in the solvent

process by which molecules of a substance move from areas of higher concentration of that substance to areas of lower concentration

concentration gradient

difference in concentration from the highest to the lowest number of molecules in a substance

selectively permeable

describes materials that allow only certain substances to pass through them

diffusion of water through a membrane

solution in which the concentration of solutes outside a cell is the same as that inside the cell

solution in which the concentration of solutes outside the cell is lower than inside the cell

solution in which the concentration of solutes outside a cell is greater than inside the cell

water pressure that builds in a plant cell

actively pump excess watere out of the cell in freshwater unicellular organisms

proteins in the cell membrane that transport large molecules or molecules that do not dissolve in the lipidsthat make up the cell membrane

facilitated diffusion

substances move with the concentration gradient from high to low, but carrier molecules speed up the movement of diffusing substances

involves the movement of materials against the concentration gradient

bulk trabsport of substances into a cell

movement of solids or large particles into a cell

movement of liquids and small particles into a cell

bulk transport of substances out of a cell

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Ch 7 Cell Transport

cellular transports

Question	Answer
solution	a mixture in which the molecules of one substance are evenly dispersed in another
solvent	the substance that makes up the greater part of the solution
solute	the substance dissolved in the solvent
diffusion	process by which molecules of a substance move from areas of higher concentration of that substance to areas of lower concentration
concentration gradient	difference in concentration from the highest to the lowest number of molecules in a substance
selectively permeable	describes materials that allow only certain substances to pass through them
osmosis	diffusion of water through a membrane
equilibrium	state of balance
isotonic solution	solution in which the concentration of solutes outside a cell is the same as that inside the cell
hypotonic solution	solution in which the concentration of solutes outside the cell is lower than inside the cell
hypertonic solution	solution in which the concentration of solutes outside a cell is greater than inside the cell
turgor	water pressure that builds in a plant cell
contractile vacuoles	actively pump excess watere out of the cell in freshwater unicellular organisms
carrier molecules	proteins in the cell membrane that transport large molecules or molecules that do not dissolve in the lipidsthat make up the cell membrane
facilitated diffusion	substances move with the concentration gradient from high to low, but carrier molecules speed up the movement of diffusing substances
active transport	involves the movement of materials against the concentration gradient
endocytosis	bulk trabsport of substances into a cell
phagocytosis	movement of solids or large particles into a cell
pinocytosis	movement of liquids and small particles into a cell
exocytosis	bulk transport of substances out of a cell

Created by: lisaredmer

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