Across
- 3. Contains both homologous chromosomes.
- 5. A ___ is a unicellular organism that lacks a nucleus.
- 6. In the __ proteins are assembled in the cell.
- 9. Controls what enters and leaves the nucleus.
- 11. What is an organism that has only 1 cell?
- 12. Flat muscle at the bottom of the lungs.
- 14. Membranes in a cell that modify, sort, and pack protein
- 16. Assembly of proteins begin here.
- 19. Chromosomes are cut in half in this process.
- 20. Organisms that need food to survive.
- 21. Cells go through __ as they grow and divide.
- 22. Opening in a leaf that allows air and CO2 to go in and out.
- 23. What regulates the coming and going of things in a cell?
- 25. A ___ is a supportive outer layer in the plant cell.
- 26. Enzyme filled organelles that break down material in a cell.
- 27. Two or more elements combined make a __.
- 30. ___ carry messages throughout the nervous system.
Down
- 1. Final phase in mitosis
- 2. Converts chemical energy into compounds for the cell.
- 4. Organisms that produce their own food.
- 7. Chromosomes line up in the middle of the cell during __.
- 8. Where lipid components are modified in the cell.
- 10. Organisms with nuclei.
- 13. A process where the cell nucleus divides.
- 15. Sunlight converts water and CO2 using this process.
- 17. The basic unit of life.
- 18. Positively charged particle.
- 24. Negatively charged particle
- 28. Passageway for air and food in the throat.
- 29. A particle with no charge at all.