Cells

5. (13) The double layer of phospholipids forming the basis of all cell membranes.
6. (16) The cell's recycling center, breaking down waste materials.
9. (20) The phase of the cell cycle when the cell is not dividing.
10. (17) The jelly-like substance that fills the interior of a cell.
12. (2) A type of cell without a nucleus.
14. (19) The semipermeable membrane surrounding the cell.
17. (12) The network of protein filaments and tubules providing structural support in cells.
19. (15) Structures within the cell where proteins are made.
20. (8) The phase of the cell cycle when DNA is replicated.
21. (9) The rigid outer layer of a plant cell.
22. (3) The control center of the cell, containing genetic material.

1. (6) The organelle responsible for energy production in cells.
2. (14) The powerhouse of the cell.
3. (11) Fluid-filled sacs used for storage in cells, particularly large in plant cells.
4. (21) The organelle where photosynthesis occurs.
5. (11) The boundary between the cell and its environment.
7. (10) Organelle involved in lipid synthesis and detoxification.
8. (18) Membrane-bound vesicle that contains digestive enzymes.
11. (7) The green pigment in plants that captures light energy.
13. (5) The organelle responsible for protein synthesis.
15. (10) The process by which cells divide to form two daughter cells.
16. (4) The genetic material of the cell.
18. (1) The smallest unit of life.