Across
- 1. The minimum amount of energy required to initiate a chemical reaction.
- 5. A reaction that releases energy (usually heat) into the surroundings; products have less energy than reactants.
- 6. The specific reactant molecule that an enzyme acts upon.
- 7. The specific region on an enzyme where the substrate binds and the reaction takes place.
- 8. A reaction that occurs through a series of simpler steps known as elementary steps.
- 11. A reaction that occurs in a single event; reactants convert directly to products without intermediates.
- 12. A process in which one or more substances are converted into different substances by breaking and forming chemical bonds.
- 13. The starting substances in a chemical reaction, written on the left side of a chemical equation.
- 14. A theoretical representation of the energy pathway as reactants are transformed into products.
Down
- 2. A high-energy, unstable state during a chemical reaction where old bonds are breaking and new bonds are forming.
- 3. A substance that increases the rate of a chemical reaction by lowering the activation energy without being consumed.
- 4. The sequence of individual steps by which a chemical reaction occurs.
- 9. A reaction that absorbs energy from the surroundings; products have more energy than reactants.
- 10. The substances formed as a result of a chemical reaction, written on the right side of a chemical equation.
- 15. A biological catalyst, usually a protein, that speeds up specific chemical reactions in living organisms.