Biology Semester Exam Review Puzzle

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Across
  1. 2. receives no experimental treatment
  2. 5. macro-molecule made up of amino acids
  3. 7. stable or balanced internal conditions
  4. 10. component of cell membrane
  5. 12. contains thylakoids
  6. 15. variable that is changed during an experiment
  7. 17. has a membrane-bound nucleus and other organelles
  8. 20. characteristic of life that relates to passing down traits
  9. 21. sum of all chemical processes in an organism
  10. 23. allows gases and water to enter/leave a leaf; prevents dehydration
  11. 24. passive process
  12. 25. metric unit for mass
Down
  1. 1. primary product of cellular respiration
  2. 3. diffusion of water across membrane
  3. 4. involved in making a protein
  4. 6. where Krebs cycle takes place
  5. 8. compound that contains the element carbon
  6. 9. means without oxygen
  7. 11. product of glycolysis
  8. 13. ultimate energy for all organisms
  9. 14. destroys damaged cells and cleans up cellular debris
  10. 16. active process where substances are brought into cell
  11. 18. contains light-absorbing pigment
  12. 19. chemical formula is C6H12O6
  13. 22. system of moral values and principles
  14. 23. where the Calvin cycle takes place