Across
- 5. a colored chemical compound that absorbs light and can be used to color other materials
- 8. the gas plants breathe out and humans need
- 9. an organism that makes its own food
- 11. when the cell finally splits
- 14. the gas humans breathe out
- 15. the double-rod structures formed during prophase
- 17. the thin strands in the nucleus which contain the instructions of the cell’s function
- 19. each chromatid becomes a new chromosome
- 21. the main photosynthesis pigment found in the chloroplasts of plants, algae and some bacteria
- 22. porous and protective membrane around the nucleus
- 24. the stage of the cell cycle during which the cell’s nucleus divides into two new nuclei and the DNA is distributed into each daughter cell
- 26. the chromosomes line up and each attaches to a spindle fiber at its centromere
- 27. simple sugar
- 29. the new nuclear envelope forms
Down
- 1. holds two chromatids together
- 2. an organism that cannot make its own food
- 3. a compound made up of two hydrogen atoms and one oxygen atom
- 4. the material within a cell apart from the nucleus
- 6. the cells around the openings in a leaf
- 7. the process by which a cell captures energy in sunlight and uses it to make food
- 10. the process by which cells obtain energy from glucose
- 12. the stage of the cell cycle that takes place before cell division occurs
- 13. rod-shaped cell structures that convert energy in food molecules to energy the cell can use to carry out its functions
- 16. in prophase these form a bridge between the ends of the cell
- 18. two cylindrical structures copied during interphase
- 20. a structure in the cells of plants and some other organisms that captures energy from sunlight and uses it to produce food
- 23. chromatin condenses to form chromosomes and the nuclear envelope breaks down
- 25. small openings on a leaf through which oxygen and carbon dioxide can move
- 28. the genetic material that carries information about an organism and is passed from parent to offspring