Biology Crossword

3. This molecule keeps the cell membrane fluid so molecules are able to pass through it.
5. Solid substances moving into a cell through large "vesicles".
8. The cell membrane is constructed of a "blank" bilayer.
9. When a cell uses energy to transport molecules from a low to a high concentration gradient moving in or out of itself it is perfoming what?
12. Active transport of wastes, hormones, or other substances exiting a cell.
13. The effect of water molecules moving through a semi-permeable membrane.

1. A "blank" cell membrane only allows certain substances to pass through it.
2. When a membrane infolds a molecule in a pocket to transport substances into a cell.
4. When there is more water outside of the cell than inside the cell. Water moves in and cell bursts. What type of solution is this?
6. When there is more water inside the cell than outside the cell. Water moves out and cell shrivels. What type of solution is this?
7. "Blank" is an abbreviation for the molecule that is considered to be the energy currency of life.
10. When the concentrations of water inside and outside of the cell are equal. What type of solution is this?
11. Liquid food material moving into a cell through "vesicles".