Reaction Rates Higher or Lower Than Required by the Body

Reaction rates higher or lower than required by the body lead to disease states. How does the body regulate its metabolic needs?

A) Reaction rates are regulated to match the body's needs at a particular moment.
B) The control center maintains a constant temperature so reaction rates remain the same.
C) Product is produced faster than substrate.
D) Reactants and products are at equilibrium.
E) Reactions move in the forward direction to produce product.