Chapter 4

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Across
  1. 2. - protein that speeds up a reactoin
  2. 5. - larger molecules that are broken up
  3. 6. respiration- a reaction that allows cells to use glucose
  4. 7. synthesis- joining smaller molecules by removing water molecules
  5. 8. reactions- are reactions that do not require energy
  6. 10. - small molecules built up into larger ones
  7. 11. - reactant from an enzyme reaction
  8. 12. reactions- are reactions that do require energy
Down
  1. 1. site- combines parts of molecules
  2. 3. - a collection of all chemical reactions
  3. 4. - reaction that breaks down carbohydrates, protein, etc
  4. 9. - the loss of hydrogen atoms
  5. 12. - the energy that cells use