Biology Crossword Puzzle

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Across
  1. 3. Molecules providing quick energy
  2. 5. the substance the enzyme reacts to
  3. 6. central- membrane bound organelle ( control center)
  4. 13. Cell without a nucleus
  5. 14. Wall rigid, protective outer layer surrounding the cell membrane of a plant cell
  6. 15. Powerhouse of the cell
  7. 16. variant form of a gene
  8. 19. genetic makeup
  9. 20. Acid Complex organic substances that carry genetic information
  10. 22. specialized organelles that conduct photosynthesis
  11. 25. Gene that shows in the phenotype
  12. 26. foundational molecule. Carries genetic instructions.
  13. 27. biotic and abiotic factors interacting with each other in a specific geographic area
  14. 28. basic physical and functional unit of heredity
  15. 30. fats and oils
  16. 31. animals eating each other or plants
  17. 32. a molecule that binds to an enzyme and decreases its activity
  18. 34. lower activation energy of chemical reactions
  19. 35. Large organic molecules that are necessary for life
  20. 37. Biological systems maintain a stable internal environment
  21. 38. Factor weather, rocks, sunlight
Down
  1. 1. organism making food
  2. 2. converting light into energy
  3. 4. Cell with a nucleus
  4. 7. gel- like substance in the cell
  5. 8. Factor living organisms
  6. 9. cell division for growth
  7. 10. Physical expression of traits
  8. 11. Respiration cells breaking down glucose and other molecules to produce energy
  9. 12. The basic unit of life
  10. 15. cell division for reproduction
  11. 16. ( Adenosine Triphosphate) energy source for cell
  12. 17. change over time
  13. 18. Membrane outer boundary of a cell
  14. 21. thread like structure of DNA
  15. 23. A living thing
  16. 24. Molecules made of amino acids
  17. 29. Acid Monomers of proteins
  18. 33. gene masked by dominant gene
  19. 36. the movement of water through a semipermeable membrane