Choose the One Most Appropriate Answer for Each

Choose the one most appropriate answer for each.
-NAD+

A) Amount of energy to start a reaction
B) Coenzyme that can accept electrons and hydrogen
C) Attachment of a phosphate group with a high-energy bond
D) An excess of end-product molecules alters the shape of the first enzyme in the pathway and shuts off that metabolic pathway
E) Part of an enzyme that binds to the substrate
F) By binding a regulatory molecule, it allows a metabolic reaction to proceed
G) Affects rates of chemical reactions by reducing activation energy
H) Important energy currency in metabolism
I) Enzyme that participates in the neutralization of hydrogen peroxide
J) A measure of the amount of energy that has been diffused from a concentrated form of energy within a system