Changes

===Meaning===

[[File:EnzymeDiagram.png|right|300px|thumb|This [[diagram]] shows an [[enzyme]], [[Substrate (Biology)|substrate]] and the [[Active Site|active site]] of the [[enzyme]].

The '''substrate''' is the [[chemical]] that an [[enzyme]] will affect.

===About Substrates===

: The [[Active Site|active site]] is shaped to fit with only one [[Substrate (Biology)|substrate]] so [[enzyme]]s all have specific roles in an [[organism]].