Across
- 2. Energy stored in chemical bonds
- 4. The process cells use to release energy by using oxygen and glucose
- 6. The substances formed in a chemical reaction
- 7. Where photosynthesis takes place
- 9. The main source of energy for most ecosystems
- 10. The capacity to do biochemical work
- 14. The starting substances in a chemical reaction
- 15. Generates most of the chemical energy
- 16. A substance used in photosynthesis and released during respiration
- 17. A gas used in daily life
- 18. The energy source needed for photosynthesis
Down
- 1. The process that converts light to chemical energy
- 3. The main source of energy for most ecosystems
- 5. The substances formed in a chemical reaction
- 8. The green pigment that absorbs light energy
- 11. A simple sugar used by cells for energy
- 12. The energy currency of your cells
- 13. A protein that speeds up chemical reactions
