Each enzyme molecule has a special place called the active site where another molecule, called the substrate, fits. The substrate goes through a chemical reaction and changes into a new molecule ...

Enzymes are proteins that can change shape and therefore become active or inactive. An activator molecule (green pentagon) can bind to an enzyme (light green puzzle shape) and change its overall ...

leading to an increase in enzyme activity. This means the active site loses its important shape and can no longer form enzyme-substrate complexes, leading to a decrease in enzyme activity.

Since enzymes are quite efficient biocatalysts active under mild conditions, they are expected to be applied to varieties of environmentally benign chemical processes realized in the next generation.

Enzymes are molecular machines that carry out the chemical reactions that sustain all life, an ability that has captured the attention of scientists like me. Consider muscle movement. Your body ...

Enzymes are also involved in the building up of chemical molecules elsewhere in the body. In an organism, the active site of each enzyme is a different shape. It is a perfect match to the shape of ...