Explore information about enzymes in the science of biology including what they do, how they work, and things that affect enzyme activity.

Explains how rennin is produced and why it is important in the human body. Describes some other uses of rennin and how it is sometimes confused with a different enzyme named renin.

Discusses the structure of the matrix inside a mitochondrion and how hundreds of concentrated enzymes are held there. The matrix takes part in mitochondrial functions such as the Krebs cycle, the electron transport chain, ATP synthesis,...