Across
- 4. when energy enters
- 6. a process where autotrophs transform light energy into chemical energy
- 11. presence of Oxygen
- 13. main pigment in chloroplasts
- 14. where cellular respiration takes place
- 15. breaking down of complex molecules into simpler molecules
- 16. gain of electrons
Down
- 1. when an electron gets excited from the sunlight and leaves PS2
- 2. splitting of sugar
- 3. breaking down of complex molecules into simpler molecules using water
- 5. building complex molecules with simpler molecules
- 7. when energy exits
- 8. absence of Oxygen
- 9. where photosynthesis takes place
- 10. an oxidation-reduction reaction
- 12. loss of electrons