You Identify an Enzyme Involved in a Cellular Reaction

Multiple Choice

You identify an enzyme involved in a cellular reaction. How does the enzyme affect the reaction equilibrium between reactants and products and the time needed to reach equilibrium?

A) It alters the reaction equilibrium and shortens the time needed to reach equilibrium.
B) The reaction equilibrium is unaffected, but it shortens the time needed to reach equilibrium.
C) It alters the reaction equilibrium and lengthens the time needed to reach equilibrium.
D) The reaction equilibrium is unaffected, but it lengthens the time needed to reach equilibrium.