How does a molecule work?

A molecule can be most properly defined as a group of atoms joined in a specific structure. A compound, on the other hand, is a substance made up of more than one type of atom—in other words, more than one type of element. Not all compounds are composed of discrete molecules, however. read more

Alpha-amylase molecule The groove in the enzyme and the special amino acids work together to form what is called the active site. The active site of every enzyme is different, but each active site has a unique shape that makes it easy to hold whatever molecule it is working on. read more