b33

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Across
  1. 3. Maximum reaction rate
  2. 4. Enzyme blocking
  3. 10. Neural messenger
  4. 11. Mood neurotransmitter
  5. 13. Reward neurotransmitter
  6. 14. Protein shape loss
  7. 15. Organic enzyme helper
Down
  1. 1. Enzyme enabling
  2. 2. Synapse chemical
  3. 5. Neuron insulation
  4. 6. Selective binding
  5. 7. Enzyme regulation site
  6. 8. Enzyme helper
  7. 9. Self-regulating mechanism
  8. 12. Variant enzyme form