Enzymes

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Across
  1. 5. A molecule that reduces or blocks enzyme activity.
  2. 7. the concept that enzymes and substrate fit perfectly with each other
  3. 9. A change in a protein’s structure that interferes with its function.
  4. 11. An organic helper molecule that assists an enzyme.
Down
  1. 1. site The part of an enzyme where a substrate binds and the reaction occurs.
  2. 2. A substance that speeds a chemical reaction without being permanently used up.
  3. 3. A nonprotein helper required by some enzymes.
  4. 4. energy The energy needed to start a chemical reaction.
  5. 6. A biological catalyst, usually a protein.
  6. 8. The reactant an enzyme acts on.
  7. 10. site A regulatory site separate from the active site where a molecule can bind and affect enzyme activity.