Learn how the enzymes in the digestive system help with the digestive process in the human body.

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.

A short, informational article which explains the structure and function of peroxisomes inside a cell.

A short, informational piece which explains the structure and function of the lysosomes of a cell.

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,...

A very nice animated basic explanation of the difference between fluorescence and bioluminescence.

Find out how bacteria in the digestive system works to digest food.

Explanation of how genetic engineering works. Analogy with molecular scissors cutting a "sentence" of DNA. Has nice animations.