Protein & enzymes

3. process where a protein unfolds and loses its higher-order structure due to heat or pH.
5. structure resulting from the association of multiple polypeptide subunits.
8. A chain of 20 or more amino acids.
9. Site, The unique region of an enzyme where the substrate binds.
10. Sheet, A back-and-forth secondary protein structure (beta-sheet).
12. A type of regulation where an activator or inhibitor binds to a site other than the active site.
15. that help proteins fold into their correct functional shapes.
17. specific reactant(s) that an enzyme acts upon.
18. reaction helper, such as an ion, required for enzyme activity.

1. A type of inhibition where the end product of a pathway shuts down an earlier step.
2. cellular structure that acts as an enzyme to facilitate peptide bond formation.
4. type of inhibitor that blocks the active site directly.
6. Helix, A spiral-shaped secondary protein structure held together by hydrogen bonds.
7. level of protein structure referring specifically to the sequence of amino acids.
11. speed up a chemical reaction in a timely manner using an enzyme.
12. Acid, The monomer unit of proteins; there are 20 unique types.
13. Energy, Often written as EA, this is the energy required to start a chemical reaction.
14. Bond, The covalent bond formed between two amino acids during polymerization.
16. An organic reaction helper, such as NAD+