choice board

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Across
  1. 3. Oxygen is not present
  2. 6. Site of Steps 2 and 3 of aerobic cellular respirations
  3. 7. 1st Step of aerobic respiration
  4. 8. used in proteins and nucleic acids
  5. 10. 2nd step of aerobic respiration
  6. 11. site of photosynthesis
  7. 12. anything that has mass and space
  8. 13. adenosine triphosphate, charged energy
  9. 15. oxygen is present
  10. 16. 1st Step of photosynthesis
  11. 18. base of Food chain
  12. 19. all water on Earth
Down
  1. 1. the backbone for all macromolecules
  2. 2. process of using light energy to make glucose
  3. 4. pigment in chloroplasts
  4. 5. all living things on earth
  5. 9. process of breaking down glucose to make ATP
  6. 14. used in phosphates of nucleic acids and phospholipids of membranes
  7. 15. gases surrounding the earth
  8. 17. adenosine diphosphate, uncharged energy.