20,345
edits
Changes
no edit summary
==Key Stage 3==
===Meaning===
An [[enzyme]] is a biological [[molecule]] which can speed up a [[Chemical Reaction|reaction]] or break down large [[molecule]]s into smaller ones.
===About Enzymes===
: [[Organism]]s have a number of different [[enzyme]]s that control the [[Chemical Reaction|chemical reactions]] that take place inside the [[cytoplasm]].
: [[Digestive Enzyme|Digestive '''enzymes''']] are used to break down large [[insoluble]] food [[molecule]]s into small [[soluble]] [[molecule]]s.
: The [[chemical]]s that an [[enzyme]] affects are called [[Substrate (Biology)|substrates]].
: [[Enzyme]]s have an area called an [[Active Site|active site]] which is where the [[enzyme]] interacts with the [[Substrate (Biology)|substrate]].
: 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]].
{| class="wikitable"
|-
|[[File:EnzymeDiagram.png|center|400px]]
|-
| style="height:20px; width:200px; text-align:center;" |This [[diagram]] shows an [[enzyme]], [[Substrate (Biology)|substrate]] and the [[Active Site|active site]] of the [[enzyme]].
|}
==Key Stage 4==
===Meaning===