Enzymes, such as the one shown in the picture, work by fitting onto the substrate molecule like a lock-and-key action. Which statement is true, with regard to the enzyme and the substrate?
Responses
A The enzyme weakens chemical bonds in the substrate and catalyzes a change into the product. The enzyme itself remains unchanged.The enzyme weakens chemical bonds in the substrate and catalyzes a change into the product. The enzyme itself remains unchanged.
B The enzyme weakens chemical bonds in the substrate and catalyzes a change into the product. The enzyme is also consumed in the reaction.The enzyme weakens chemical bonds in the substrate and catalyzes a change into the product. The enzyme is also consumed in the reaction.
C The substrate reacts with the enzyme in the active site to produce a product. The enzyme, though changed, does not become a part of the product.The substrate reacts with the enzyme in the active site to produce a product. The enzyme, though changed, does not become a part of the product.
D The substrate reacts with the enzyme in the active site to produce a product. Both the enzyme and the substrate combine and change into a product.