chapt
Across
- 3. Organelles that produce energy (ATP) for the cell; known as the "powerhouse of the cell."
- 7. A rigid outer covering present in plant cells that provides shape, support, and protection.
- 12. A thin, selectively permeable membrane that surrounds the cell and controls the movement of substances in and out.
- 14. The genetic material responsible for inheritance and cellular functions.
- 16. A cell without a true nucleus and membrane-bound organelles
- 18. Thread-like structures in the nucleus that carry hereditary information.
- 19. Tiny organelles responsible for protein synthesis.
- 20. A network of membranes involved in protein and lipid synthesis and transport.
Down
- 1. The jelly-like substance inside the cell where cell organelles are suspended.
- 2. Movement of molecules from a region of higher concentration to lower concentration.
- 4. The control center of the cell that contains genetic material (DNA).
- 5. Modifies, packages, and transports proteins and lipids.
- 6. CellTheory States that all living organisms are made of cells, and cells are the basic units of life. New cells arise from pre-existing cells.
- 8. A cell with a true nucleus and membrane-bound organelles A thin, selectively permeable membrane that surrounds the cell and controls the movement of substances in and out.
- 9. Organelles found in plant cells. They include chloroplasts, chromoplasts, and leucoplasts.
- 10. Movement of water through a selectively permeable membrane from a region of higher water concentration to lower water concentration.
- 11. States that all living organisms are made of cells, and cells are the basic units of life. New cells arise from pre-existing cells.
- 13. A green plastid containing chlorophyll that carries out photosynthesis.
- 15. A storage sac for water, food, and waste materials.
- 17. Membrane-bound sacs containing digestive enzymes; called the "suicidal bags" of the cell.