The Chemistry of Life

1234567891011121314151617181920212223242526272829303132333435363738394041
Across
  1. 2. element that forms the basis of organic compounds
  2. 3. solution with a pH less than 7
  3. 6. heat ____; protects aquatic organisms from drastic temperature changes
  4. 8. elements or compounds produced in a reaction
  5. 10. single sugar molecule/monomer
  6. 11. mixture; components evenly distributed
  7. 13. chemical combination of 2 or more elements
  8. 14. individual unit of a polymer
  9. 16. play many roles; have primary, secondary, tertiary structure
  10. 20. substance that speeds up rate of a reaction
  11. 22. protein that acts as biological catalyst
  12. 24. attraction between molecules of same substance
  13. 25. van der ______; forces holding molecules together
  14. 28. negatively charged particle
  15. 29. main source of energy for living things
  16. 31. contain glycerol and fatty acid chains
  17. 32. attraction between molecules of different substances
  18. 33. positively or negatively charged atom
  19. 34. may affect activity of enzymes
  20. 38. a substance in a solution that is dissolved
  21. 39. at the center of the atom
  22. 40. type of bond between two water molecules
Down
  1. 1. atoms of same element, different # of neutrons
  2. 2. type of reaction that changes one set of chemicals into another
  3. 3. ___ energy; energy needed to start reaction
  4. 4. ___ acid; monomer of proteins
  5. 5. type of bond in which electrons are shared
  6. 7. composed of more than one monomer
  7. 9. a lipid with no double bonds in its fatty acid chains
  8. 12. the substance in which a solute dissolves
  9. 13. type of carbohydrate that includes starch and cellulose
  10. 14. 2 or more atoms in covalent compound
  11. 15. elements or compounds that enter a reaction
  12. 17. reactants of enzyme-catalyzed reactions
  13. 18. always absorbed or released in chemical reactions
  14. 19. weak acid or base that prevents changes in pH
  15. 21. molecule with uneven distribution of charges
  16. 23. monomers that make up nucleic acids
  17. 26. basic unit of matter
  18. 27. ___ site; where substrates go on an enzyme
  19. 30. solution with a pH greater than 7
  20. 35. scale that indicates concentration of H+ ions
  21. 36. type of bond in which electrons are transferred
  22. 37. mixture of water and nondissolved material
  23. 41. consists of one type of atom