Enzymes

3. The term used to describe reactions that are spontaneous and involve a release of energy (usually as heat).
4. The type of organic macromolecule that most enzymes are.
6. The type of metabolism in which smaller molecules are combined to form larger ones.
7. The term used to describe reactions that involve an input of energy.
10. The substrate concentration when the reaction rate is half maximal velocity.
11. Organic cofactors that are usually vitamins or vitamin derivatives.
12. A type of inhibition where the active site of an enzyme is blocked or occupied by a molecule other than the substrate.
15. The molecule generated in certain biochemical reactions that acts as a chemical store of energy used by cells.
19. The highest rate that can be achieved for an enzyme-catalyzed reaction.
20. All the chemical reactions occurring within a cell or living organism.

1. The official ending of all enzyme names.
2. When an enzyme loses its active site it is said to be ______.
5. Any substance that has the ability to speed up the rate of a reaction.
6. The difference in free energy between the transition state and the substrate.
8. The best temperature or pH for a specific enzyme's functioning.
9. The model describing a perfect match between the enzyme active site and its substrate.
13. The last product of a metabolic pathway.
14. The type of metabolism in which larger compounds are broken down to generate smaller ones.
16. The atoms or molecules that are the reactants of an enzyme-catalyzed reaction.
17. The class of enzymes that catalyzes hydrolysis type reactions.
18. The measure of the hydrogen ion concentration of a solution
21. The term used to describe an inactive enzyme without its cofactor.