Biology Crossword Puzzle

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Across
  1. 1. uncontrolled cell division
  2. 4. uniform mixture of substances
  3. 8. controls what goes in and out of cell
  4. 11. organisms that eat dead materials for energy
  5. 13. consumers that eat only meat
  6. 16. amount of energy needed for a chemical reaction to start
  7. 18. repeated pattern of growth and cell division
  8. 19. process by which sunlight is converted to chemical energy in plants
  9. 20. macromolecule that holds DNA
Down
  1. 2. cell where photosynthesis occurs
  2. 3. organisms that produce their own food
  3. 5. consumers that eat only plants
  4. 6. substances changed in a chemical reaction
  5. 7. a section of DNA with info for making a protein
  6. 9. molecule that stores energy for cell functions
  7. 10. organisms that eat others for energy
  8. 12. consumers that eat meat and plants
  9. 14. catalyst that speeds up chemical reactions
  10. 15. need of an organism to stay stable with help of cells
  11. 17. substances made in a chemical reaction