Biology Review

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Across
  1. 5. a small, baglike part located under the liver
  2. 6. three pairs of small glands located under the tongue and behind the jaw
  3. 7. form the rungs of a DNA molecule
  4. 12. the code that translates the DNA language into the protein language
  5. 15. the changing of food into a usable form
  6. 16. A ______ occurs when large food pieces are broken down into smaller pieces
  7. 18. A ______ turns food into a form the cells can use
  8. 19. any change in copying the DNA message
  9. 20. ______ system is a group of organs that take in food and change it into a form the body can use
  10. 23. a long, hollow, tubelike oran (most of chemical digestion of food take place here)
  11. 24. the DNA that is formed when DNA from one organism is put into the DNA of another organism
  12. 25. the largest organ in the body
  13. 28. ______ twins are two children that form from the splitting of one fertilized egg
  14. 29. a liquid that is formed in the mouth and that contains an enzyme. (speeds up chemical change in carbohydrates)
  15. 30. a small fingerlike part found where the small and large intestine meet
  16. 31. a green liquid that breaks large fat droplets into small fat droplets
Down
  1. 1. chemicals that speed up the rate of chemical change
  2. 2. energy that is given off by atoms
  3. 3. Food gets out of the small intestine and into the blood mainly by ______
  4. 4. a tubelike organ at the end of the digestive track
  5. 8. the bringing together of two living things to produce offspring
  6. 9. a tube hat connects the mouth to the stomach
  7. 10. a baglike, muscular organ that mixes and chemically changes protein
  8. 11. a chemical often called stomach acid
  9. 13. a thick, sticky material that protects the stomach and intestinal linings from from enzymes and stomach acid
  10. 14. a chemical that acts as a messenger for DNA
  11. 17. ______ twins are twins that form from two different fertilized egg
  12. 21. the adding of a healthy gene into the body of a person suffering from a disorder caused by a defective or mutated gene
  13. 22. makes three different enzymes
  14. 26. a molecule that makes up genes and determines the traits of all living things
  15. 27. the fingerlike parts on the lining of the small intestine