Biology Crossword

1. Diffusion of water through a selectively permeable membrane.
9. the differences between concentrations of substances
11. The source of energy for a cell
13. When water concentration is greater outside the cell than inside the cell.

2. Allowing certain substances to enter and exit the cell.
3. When water concentration is greater inside the cell than outside the cell.
4. Moving solid materials into a cell with large vesicles.
5. Movement of a substance in or out of a cell among a concentration.
6. Any of a group of compounds composed of fatty acids, phosphoric acid, and a nitrogen base.
7. Moving a substance with concentration gradient. Doesn’t require energy.
8. Liquid food material transported in tiny vesicles.
10. Cellular process of moving substances against the concentration gradient.
12. Water concentration inside the cell equals the concentration outside the cell.