Enzymes and catalysts

Question

Which statement about enzymes is false?

A)At low substrate concentration, the presence of an enzyme greatly increases the rate of a reaction, but once the enzyme becomes saturated, the reaction rate levels off.

B)An enzyme is permanently altered after speeding up a reaction.

C)Enzymes lower the activation energy needed to initiate chemical reactions.

D)Enzymes may be made of amino acids or nucleic acids.

E)Given the same substrate(s), an enzyme-mediated reaction generates the same products as a non-enzyme mediated reaction

Answer 1

D. Enzymes are NOT made of nucleic acids. They ARE made of amino acids.