Across
- 4. Organisms whose cells lack a nucleus and other organisms
- 7. The membrane found in cells that separates the interior of the cell from the outside environment.
- 8. The net movement of water across a semipermeable membrane.
- 9. The molecule that carries the genetic information within an organism
- 11. The firm nonliving layer that encloses and supports the cells of most plants, bacteria, fungi, and algae
- 14. A cell organelle that contain digestive enzymes
- 16. Some molecules are allowed through while others are not.
- 17. Tubular structures that assist in cell division
- 18. Cell organelle that genetrate most of the cells chemical energy
- 19. An organelle found in plants that converts light energy into chemical energy.
- 20. A small structure in a cell that is surrounded by a membrane and has a specific function.
Down
- 1. Occurs when there is a lower amount of solute outside the cell then there is inside the cell.
- 2. Occurs when there is a higher amount of solute outside the cell than there is inside the cell.
- 3. Describes the cell membrane as a combination of several types of molecules that are constantly moving.
- 5. States that all organisms are composed of cells
- 6. A two layered arrangement of phosphate and lipid molecules that form a cell membrane.
- 7. Movement of substances across a cell membrane without the expenditure of energy.
- 10. The use of energy by the cell to move substances across the cell membrane.
- 12. Organisms whos cells contain a nucleus and cell membrane bound organelles
- 13. The amount of solute outside and inside the cell are equal.
- 15. The smallest unit of life
