Anatomy & Physiology Ch 1 & 2 Crossword

1234567891011121314151617181920
Across
  1. 3. a special protein to speed up chemical reactions
  2. 4. energy that our cells can use
  3. 5. the organic molecule used to make most body structures (skin, muscle, bone, blood, etc.)
  4. 7. special fats that make the cell membrane
  5. 9. reaction that breaks molecules, as in digestion
  6. 12. the body system that transports oxygen around the body
  7. 13. keeping the body systems within a healthy range
  8. 14. all the chemical reactions inside the body
  9. 16. a charged atom, needed for nerves and muscles to work
  10. 17. system that attacks bacteria and viruses that have entered the body (AKA immune system)
  11. 18. system that makes hormones
  12. 20. chemicals that cause humans to grow, develop, sleep, have emotions, digest, etc.
Down
  1. 1. the organic molecule that provides humans with most of the energy we use
  2. 2. system that gets oxygen from the environment and releases CO2
  3. 6. instructions for making proteins, ex: DNA & RNA
  4. 8. fancy name for fats- needed to make cell membranes
  5. 10. the molecule humans exhale
  6. 11. reaction that builds tissues and requires energy
  7. 15. molecule that contains carbon & hydrogen
  8. 19. inorganic molecule needed to make ATP