Chapter 3.2 vocab Word Scramble
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Term | Definition |
passive transport | movement of molecules across the cell membrane without energy input form the cell |
diffusion | movement of dissolved molecules in a fluid or gas from a region of higher concentration to a region of lower concentration |
concentration gradient | difference in the concentration of a substance from one location to another |
osmosis | diffusion of water molecules across a semipermeable membrane from an area of higher water concentration to an areas of lower water concentration |
isotonic | solution that has an equal concentration of dissolved particles compared with another solution |
hypertonic | solution that has a higher concentration of dissolved particles compared with another solution |
hypotonic | solution that has a lower concentration of dissolved particles compared with another solution |
facilitated diffusion | diffusion of molecules assisted by protein channels that pierce a cell membrane (ex. of passive transport) |
active transport | energy-requiring movement of molecules across a membrane from a region of lower concentration to a region of higher concentration |
endocytosis | uptake of liquids or large molecules into a cell by inward folding of the cell membrane |
phagocytosis | uptake of a solid particle into a cell by engulfing the particle |
exocytosis | release of substances out of a cell by the fusion of a vesicle with the membrane |
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