Across
- 1. When a vacuole/vesicle fuses with the cell membrane, releasing its contents.
- 4. A type of active transport that moves NA+ and k+ molecules.
- 8. What cell size (smallest, medium, or largest)will be the most efficient at taking in nutrients?
- 9. As the volume of the cube decreases, the ratio of surface area to volume _________.
Down
- 1. Taking in materials using the cell membrane.
- 2. Energy used for active transport is called ___.
- 3. The tendency of molecules to move from ____ to ____ concentration.
- 5. As the volume of the cube increases, the ratio of surface area to volume _________.
- 6. What happens when cells become too large? (It divides itself)
- 7. All forms of active transport need ______.