А In the image above, the substance indicated as C is a(n) O a. substrate O b. regulatory molecule OC. inhibitor O d. cofactor O e.coenzyme

2. Draw a graph showing a downhill (spontaneous) reaction, that requires some activation energy to get it going. Then draw and clearly label on the graph b. The activation energy for the reaction (use a bracket to indicate the upper and lower limits) c. The free energy change for the reactions (use a bracket to indicate the upper and lower limits) d. How an enzyme will change the energetics of the reaction. I suggest you use a dotted line for the enzyme.

What is true about a competitive inhibitor of an enzyme? You can choose more than one a. it binds the active site b. it binds an allosteric site c. it physically blocks the substrate d. it warps the active site e. it can be overcome with large amounts of substrate

The representative reaction of the enzymatic process is:

15. When an atom or molecule loses one or more electrons, it is said to be: A. energized. B. oxidized. C. polarized. D. reduced. 16. A drug binds to the active site of an enzyme. If it is bound to the active site of the enzyme, it prevents substrate binding. This drug would be considered a(n) A. noncompetitive inhibitor. B. allosteric inhibitor. C. allosteric activator. D. competitive inhibitor. 17. If the AG of a reaction was +31.45 kJoules, which of the following is NOT true regarding this reaction? A. the products have more free energy than the reactants B. the reaction requires an energy input of 31.45 kJoules to proceed. C. The reaction is exergonic D. The reaction is endergonic 18. The large number of alveoli in lungs improve gas exchange by A. decreasing the distance for diffusion B. increasing the surface area for diffusion C. increasing the concentration difference D. changing the diffusion constant 19. Exchange of gases and metabolites between the blood and tissues occurs in…