What are enzymes? We often hear about them but only a few of us really know what they are and what their significance is to our lives.
There are three major different types of enzymes at work in the human body. Within these three types are nearly 3,000 different kinds of enzymes. Each kind has certain specific tasks to carry out, and we need most all of them just to survive. Without certain enzymes we couldn't even exist. An enzyme has a somewhat complicated structure, though most cells in the body may contain up to 1,000 of them. Enzymes exist at the molecular level however, so plenty of them can fit into a very tiny space.