Enzymes

2. Energy due to motion
3. shape A shape that allows two molecules to fit closely together
9. a permanent change in the shape of an enzyme's active site that prevents the binding of a substrate.
10. complex When the enzyme and substrate are locked together.
13. Hydrogen ion concentration
14. The temperature or pH at which an enzyme is most active
15. complex The temporary complex formed when the substrate binds to the active site of the enzyme.
16. Enzyme that breaks down fat
17. Enzyme that breaks down starch
18. A specific region of an enzyme where the substrate binds and the reaction takes place.

1. When a protein loses its natural shape
4. A substance produced in a chemical reaction
5. site The part of an enzyme where the chemical reaction occurs.
6. Enzyme that digests protein
7. A biological catalyst that increases the rate of reactions in living organisms.
8. Enzyme that breaks down starches into sugars
11. site The part of an enzyme where the chemical reaction occurs.
12. The structure on which an enzyme works.