How do enzymes speed up chemical reactions?

Enzymes speed up chemical reactions by lowering the activation energy for reactions. As we know, the lower the activation energy, the faster the reaction happens and the potential energy is reached. If we use this catalyst, we will have a faster product.

Enzymes speed up chemical reactions via the lock and key method. They cause the substrate to fit around themselves, such that they modify the shape of the substrate. The enzymes provide a medium for substrates to react with each other so that the product can form. They speed up the process by facilitating the chemical reaction. This is just one of the ways in which enzymes speed up chemical reaction