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Section 6.4

Across
The region on an enzyme where the substrate bonds.
Nonprotein helpers for catalytic activity.
A process where a catalyst speeds up a reaction without being consumed.
Change the shape of the active site.
Block substrates from entering the active site.
An organic cofactor.
Down
The reactant an enzyme acts on.
When the enzyme and substrate bond they form this.
A macromolecule that acts as a catalyst.
The initial investment of energy for starting a reaction.
The tightening of the binding after initial contact.
A chemical agent that speeds up a reaction.