Protein & enzymes

2. A spiral-shaped secondary protein structure held together by hydrogen bonds.
3. A reaction helper, such as an ion, required for enzyme activity.
4. To speed up a chemical reaction in a timely manner using an enzyme.
7. The monomer unit of proteins; there are 20 unique types.
8. A type of inhibition where the end product of a pathway shuts down an earlier step.
10. Molecules that help proteins fold into their correct functional shapes.
14. The covalent bond formed between two amino acids during polymerization.
15. Often written as EA, this is the energy required to start a chemical reaction.
16. The level of protein structure referring specifically to the sequence of amino acids.
17. An organic reaction helper, such as NAD+

1. A chain of 20 or more amino acids.
2. The unique region of an enzyme where the substrate binds.
5. A type of inhibitor that blocks the active site directly.
6. A back-and-forth secondary protein structure (beta-sheet).
7. A type of regulation where an activator or inhibitor binds to a site other than the active site.
9. The process where a protein unfolds and loses its higher-order structure due to heat or pH.
11. The cellular structure that acts as an enzyme to facilitate peptide bond formation.
12. Protein structure resulting from the association of multiple polypeptide subunits.
13. The specific reactant(s) that an enzyme acts upon.