The Chemistry of Life

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Across
  1. 5. / A substance made up a group of similar atoms that have the same number of protons
  2. 7. / The main purpose of ______ is to convert excess food into long-term energy storage units.
  3. 8. / Found in cell walls of plants
  4. 10. / The combination of protons and neutrons
  5. 13. / Covalent bond between two amino acids
  6. 15. / molecules with partial charges on opposite ends
  7. 16. / A new substance that is formed in a chemical reaction
  8. 20. / The substance acted upon by an enzyme
  9. 21. / A simple sugar
  10. 25. / Atoms of an element that have different numbers of neutrons
  11. 26. / Atomic particle with no charge
  12. 28. / Consisted of hundreds of glucose units bonded together
  13. 29. / A molecule that acts as a catalyst in biochemical reactions
  14. 32. / The basic units of biochemistry contain ______ atoms.
  15. 33. / The smallest unit of matter that can’t be broken down by chemical means
  16. 34. / Unused glucose in animals is stored as this macromolecule
  17. 37. / The minimum amount of energy required to start a chemical reaction
Down
  1. 1. / A molecule made up of a sugar, phosphate group, and a base
  2. 2. / These structures border cell membranes
  3. 3. / The region where electrons orbit the nucleus
  4. 4. / An electron that is found in the outermost shell of an atom
  5. 6. / Building blocks of proteins
  6. 9. / The number of protons in the nucleus of an atom, which determines its place in the periodic table
  7. 11. / Testosterone is a chemical signal known as this
  8. 12. / Covers parts of plants and aquatic birds to repel water
  9. 14. / Atomic particle with a negative charge
  10. 15. / Many sugars linked together
  11. 17. / Used to speed up a chemical reaction
  12. 18. / A substance that participates in a chemical reaction
  13. 19. / Contains carbon, hydrogen, and oxygen; will dissolve in water
  14. 22. / Found in shells of crabs, lobsters, and insects
  15. 23. / Changes in temperature and pH can change a protein’s shape
  16. 24. / An organic molecule that acts as the main energy source for cell processes
  17. 27. / Composed of chains of amino acids made of carbon, hydrogen, oxygen, and nitrogen
  18. 30. / Positively charged particle
  19. 31. / Two sugars linked together
  20. 35. / Organic molecule made up of carbon, hydrogen, and oxygen and will not dissolve in water
  21. 36. / The combination of glucose and fructose
  22. 37. / The site that attaches to a substrate on an enzyme