Across
- 3. Units of light energy from the sun that can power photosynthesis in plant cells
- 4. Organisms that cannot make their own food
- 7. A green pigment that is present in most plant cells that give plants their characteristics green color
- 8. A sugar made during photosynthesis
- 11. Organisms that are able to make their own food
- 14. Any source of usable power
- 17. When a substance changes into another substance
- 21. The process in which cells make ATP by breaking down organic compounds
- 22. liquid interior of chloroplast
- 23. An electric force linking atoms
- 24. The gas released by plants
Down
- 1. An organelle where photosynthesis occurs
- 2. sugar is sent to the cells mitochondria to make this
- 3. A colored chemical compound that absorbs light producing color
- 5. Flattened membranes where light reactions occur
- 6. The process plants use to make their own food, which fuels all their activities
- 9. The major source of energy for cellular reactions
- 10. The light- independent reactions that produce sugar
- 12. Opening in leaf where gas exchange occurs
- 13. An accessory pigment either yellow or orange in the chloroplasts of plants
- 15. Splitting of water
- 16. A complex protein produced by cells that acts as a catalyst
- 18. A stack of dis-shaped thylakoids, where light-dependent reactions of photosynthesis occur
- 19. Gas needed for photosynthesis, taken in by leaves
- 20. A plant organelle that contains chlorophyll and other pigments
- 21. A chemical substance present at the start of a process