| A | B |
|---|
| diffusion | molecules moving from a high concentration to a low concentration |
| active transport | moving molecules across a membrane that uses energy |
| phagocytosis | the process of the cell membrane slowly enveloping a food particle |
| mitosis | cell division that ensures the genetic information in daughter cells is the same as parent cells |
| osmosis | the movement of water across a semi-permable membrane |
| semi-permeable membrane | a membrane that lets some molecules pass through it while preventing others |
| malignant tumor | a cancer tumor that keeps expanding and invading nearby tissues |
| begnin tumor | a tumor that does not spread |
| metastasis | when a piece of cancer breaks off and starts another cancer elsewhere |
