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