Question

Which of the following is true for all enzymes?

A. They decrease ∆G
B. They increase the reaction rate.
C. They provide the energy to get over the activation energy barrier.
D. All of the above

Answer 1

Enzymes are biological molecules that increase the reaction rate by providing an alternative pathway with lower activation energy. They do not alter the ∆G of the reaction or supply the energy to overcome the activation energy barrier.

Step-by-step explanation:

The question at hand is asking which statement is true for all enzymes. Among the options provided, the correct one is that they increase the reaction rate. Enzymes achieve this by lowering the activation energy required for a reaction to occur, not by providing the energy themselves or by changing the ∆G of the reaction. The ∆G, or Gibbs free energy change, is an intrinsic property of a reaction that is not altered by enzymes. Enzymes merely provide an alternative pathway with lower activation energy to accelerate the reaction rate. Every enzyme is highly specific, meaning each one binds to specific substrate(s) based on the unique shape and chemistry of its active site.