From the image;
1) Amylase
2) Starch
3) Active binding site
4) Sugar
How does an enzyme work?
Enzymes are biological catalysts that help living things do chemical processes more quickly and easily. They function by reducing the activation energy needed for a reaction to happen, which raises the reaction's rate.
Specific binding sites on enzymes allow substrates, or molecules of reactants, to attach. The structure of the enzyme and the substrate complement each other. The enzyme-substrate complex undergoes changes in shape, and the reaction is catalyzed to form products.