My crossword puzzle.

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Across
  1. 5. an organism that can produce its own food.
  2. 7. a pigment present in all green plants and a few other organisms.
  3. 9. what we breathe in everyday.
  4. 10. plant cell organelles that convert light energy into chemical energy
  5. 12. the process by which biological fuels are oxidized in the presence of an inorganic electron acceptor
  6. 15. a collection of proteins bound to the inner mitochondrial membrane and organic molecules
  7. 16. the main sugar found in your blood.
  8. 17. The powerhouse of the cell
  9. 18. converts glucose into pyruvate
  10. 19. what we breathe out everyday.
Down
  1. 1. a series of chemical reactions in living things
  2. 2. certain photochemical reactions involved in photosynthesis
  3. 3. convert light energy, typically from sunlight, into the chemical energy necessary to fuel their metabolism.
  4. 4. what we drink to survive.
  5. 6. cycle of photosynthesis is a series of chemical reactions that convert carbon dioxide and hydrogen-carrier compounds into glucose.
  6. 8. without oxygen.
  7. 11. Requiring air or oxygen for life
  8. 13. a type of redox metabolism carried out in the absence of oxygen.
  9. 14. an organism that eats other living things
  10. 20. energy at a cellular level.