An enzyme Is something that can speed up a reaction. Enzymes are Something that are very common in many organisms. They work by lowering the activation energy thus acting like a catalysis causing a change to occur more rapidly. The picture above is one of an orange which has an enzyme called bromilin, this enzyme is important because it helps in the digestion process. When the digestion process takes place with an orange the enzyme is released and actual helps regulate the stomachs acidic juices. Many other fruits like pine apples and apples also have similar enzymes that aid significantly in the bodies digestion process.