Across
- 1. The process cells use to release energy from glucose
- 3. The organelle where photosynthesis occurs
- 4. The green pigment that absorbs light energy
- 6. The energy source needed for photosynthesis
- 7. A molecule that provides usable energy for cells
- 8. A protein that speeds up chemical reactions
- 10. The organelles where most aerobic respiration takes place
- 13. Energy stored in chemical bonds
- 15. The starting substances in a chemical reaction
- 17. The main source of energy for most ecosystems
Down
- 2. The process plants use to make glucose using light energy
- 5. A gas used in aerobic respiration
- 7. Respiration that requires oxygen
- 8. The ability to do work or cause change
- 9. The substances formed in a chemical reaction
- 11. Respiration that occurs without oxygen
- 12. A process that releases energy without oxygen
- 13. A gas absorbed by plants during photosynthesis
- 14. A substance used in photosynthesis and released during respiration
- 16. A simple sugar used by cells for energy