Enzymes

5. A measure of how fast an enzyme-catalyzed reaction proceeds under specific conditions.
6. The substrate concentration that reflects enzyme affinity and helps predict reaction behavior.
8. Describes reactions that proceed in either direction depending on substrate and product concentrations.
11. Describes reactions that proceed in only one direction due to large energy changes.
12. An enzyme moves a methyl or amino group from one molecule to another during metabolism.
13. A state in which increasing substrate concentration no longer increases reaction rate.
14. A molecule is rearranged into a different structural form without changing its chemical formula.

1. Two molecules are joined together in a reaction that requires energy from ATP hydrolysis.
2. Regulation of enzyme activity, usually through the addition of a phosphate group.
3. Regulation in which a molecule binds somewhere other than the active site.
4. A digestive enzyme breaks a bond using water to help absorb nutrients.
5. The maximum rate of an enzyme-catalyzed reaction when all active sites are occupied.
7. Increased synthesis of enzymes, often influenced by hormones.
9. Enzymes that catalyze oxidation–reduction reactions.
10. A reaction breaks a carbon–carbon bond without using water or energy from ATP.