| A | B |
| facilitated diffusion | the passive transport of materials across the plasma membrane with the aid of transport proteins |
| Endocytosis | the process by which a cell surrounds and takes in material from it's environment. |
| phagocytosis | engulfing of solid materials |
| pinocytosis | engulfing liquids |
| Exocytosis | the expulsion or secretion of materials from a cell |
| Passive transport | the movement of particles across a membrane by diffusion or osmosis |
| diffusion | the net movement of particles from an area hof higher concentration to an area of lower concentration |
| concentration gradient | the difference in concentration of substances across a space |
| osmosis | the diffusion of water across a selectively permeable membrane |
| isotonic solution | a solution where the concentration of water is equal on both sides of the cell membrane |
| Hypotonic solution | a solution where the concentration of water is greater outside the cell than the concentration of water inside the cell |
| Hypertonic solution | a solution where the concentration fo water is lower outside the cell than the concentration of water inside the cell |
| hyper | over |
| hypo | under |
| iso | equal |
| tonic | to stretch |
| energy of motion that molecules have | kinetic |
| the random movement of molecules due to their kinetic energy is called | brownian motion |
| the rate of diffusion is affected by | concentration, temperature, diffusion |
| dynamic equilibrium | a condition in which there is a continuous movement but no overall change in concentration |