Why, what are enzymes, anyway?
What do enzymes trypsin and chymotrypsin have to do to with cancer?
Enzymes are large protein molecules, present in all living things from bacteria to whales to marigolds. They are nature’s chemists. All activity of living things depends on them— the greening of leaves in the spring, the bolt from an electric eel, the wagging of a dog’s tail, the illumination of a firefly.