| A | B |
| passive (no energy needed) | O'Briens Don't Feel Fear |
| osmosis | water from area with more water to area with less |
| diffusion | movement of substance from high concentration area to low concentration |
| filtration | movement of water and substances from high to low pressure area |
| facilitated diffusion | helper molecule in membrane assists movement of substances |
| active (energy needed) | A PEEP |
| active transport pumps | movement of susbstance uphill from low to high concentration |
| phagocytosis | cellular eating (engulfing solids) |
| endocytosis | ingestionof substances by cell membrane |
| exocytosis | secretion of cellular products out of cell (protein, debris) |
| pinocytosis | cellular drinking (engulfing liquid) |