The false statements about enzymes are:
- Enzymes provide energy for endergonic reactions.
- Enzymes provide energy for exergonic reactions.
Both of these statements are incorrect because enzymes do not provide or supply energy; instead, they lower the activation energy required for a reaction to proceed, thereby increasing the rate of the reaction without changing the overall energy level of the reactants and products.
The other two statements— that enzymes are usually specific for the chemical reactions they catalyze, and that they are made up of amino acids—are true. Enzymes are indeed typically specific to their substrates and are composed of proteins, which are made from amino acids.