energetics & Enzymes

3. reaction One that results in an increase in free energy; another way of referring to a nonspontaneous reaction.
6. energy The total energy available to do work—a combination of entropy and thermal and potential energy.
8. energy Energy related to interactions among charged particles.
9. energy The energy of motion in ions and molecules, measured as temperature.
11. reaction One that results in a decrease in free energy; another way of referring to a spontaneous reaction.
12. A protein that catalyzes a chemical reaction.

1. energy The amount of energy required to get a chemical reaction through its transition state.
2. energy Energy that is related to an object’s position.
4. reaction Conversion of substances (ions or molecules) into other substances via breaking and forming chemical bonds.
5. state During a chemical reaction, an intermediate state where old bonds are being broken but new bonds have not yet formed.
7. coupling A phosphorylation reaction that makes a nonspontaneous reaction spontaneous, because it raises the free energy of the reactants.
10. site The place on an enzyme (or ribozyme) where a reaction is catalyzed.