Enzymes and their uses

A resource to support students aged 14-16 years to understand the nature and function of enzymes in the human body.

Enzymes are biological catalysts that speed up chemical reactions in living organisms. There are more than five hundred different enzymes in every cell of the body, each of them helping the cell, and the body as a whole, to work.

Some enzymes work outside the cells, for example the enzymes in the digestive system. 

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