| A | B |
|---|
| movement of substances through a cell membrane using the cell's energy | active transport |
| movement from an area of higher concentration to an area of lower concentration | diffusion |
| process during which a cell takes in a substance by surrounding it with the cell membrane | endocytosis |
| process during which a cell's vesicles release their contents outside the cell | exosytosis |
| when molecules pass through a cell membrane using transport proteins | facilitated diffusion |
| diffusion of water molecules only through a membrane | osmosis |
| movement of substances through a cell membrane without using energy | passive transport |
