Bio: Cell Transport Word Scramble
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| Term | Definition |
| facilitated diffusion | passive transport of a substance through a membrane with the help of transport proteins |
| diffusion | the movement of molecules from an area of high concentration to an area with a lower concentration |
| concentration gradient | the difference in the concentrations of the molecules on either side of a membrane |
| equilibrium | equal concentration of molecules on both sides of a membrane |
| passive transport | the movement of substances across a plasma membrane that does not require energy because the substance is moving from a higher to lower concentration |
| transport protein | protein in a cell membrane that helps molecules pass through the membrane by either forming a channel for the molecules to pass through, or carrying the molecules through the membrane |
| active transport | movement of substances across a plasma membrane that requires energy because the substance is moving against the concentration gradient, from a lower to higher concentration |
| ion channels | membrane-spanning protein that allows transport of a specific ion through the cell membrane |
| osmosis | the diffusion of water molecules across a semi-permeable membrane from an area of high concentration to an area of lower concentration |
| solute | a substance that is dissolved in a solvent to form a solution |
| solvent | a substance that dissolves a solute to form a solution |
| solution | the mixture of a solute in a solvent |
| hypertonic | the solution with the higher solute concentration when comparing two solutions of unequal solute concentration |
| hypotonic | the solution with the lower solute concentration when comparing two solutions of unequal solute concentration |
| isotonic | solutions of equal solute concentration |
| selectively permeable | the ability to allow only certain molecules or ions to cross the plasma membrane; semipermeable |
| plasmolysis | process in which the cell membrane pulls away from the cell wall as a cell shrivels when placed in a hypertonic solution |
| protein pump | a protein embedded in a cell membrane that helps move substances across the membrane |
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