Question:medium

Choose the correct answer from the options given below :
(A) Enzymes enhance reaction rate by a factor of 2 to 10.
(B) Activation energy of a reaction is lowered by enzymes.
(C) Interactions between enzymes and substrates are hydrogen, ionic and hydrophobic bonds.
(D) Substrate concentration does not affect the rate of enzyme-catalyzed reactions.

Show Hint

Remember that enzymes lower the activation energy ($E_a$) but leave the starting reactants and ending products ($\Delta G$) completely unchanged.
They speed up how fast a reaction reaches equilibrium, but they do not change the position of that equilibrium.