19,879
edits
Changes
→Key Stage 4
| style="height:20px; width:200px; text-align:center;" |Nuts are the [[seed]]s of [[tree]]s and are part of a [[Balanced Diet|balanced diet]].
| style="height:20px; width:200px; text-align:center;" |There are many different kinds of peas that can help make sure you have a [[Balanced Diet|balanced diet]].
|}
===Testing For Protein===
: Adding [[protein]] to [[Biuret]] [[solution]] will cause the [[solution]] to turn purple.
=====Method=====
: 1. Take a small sample of food and [[dissolve]] it in [[water]].
: 2. Add some [[Biuret]] to the [[solution]].
: 3. If it turns from blue to purple then the food contained [[protein]].
{| class="wikitable"
|-
|[[File:Biuret.png|center|300px]]
|-
| style="height:20px; width:300px; text-align:center;" |This [[Biuret]] has turned purple, indicating protein is present.
|}