Difference between revisions of "Starch"
| Line 1: | Line 1: | ||
==Key Stage 3== | ==Key Stage 3== | ||
===Meaning=== | ===Meaning=== | ||
| − | Starch is a complex [[carbohydrate]] found in food. | + | '''Starch''' is a complex [[carbohydrate]] found in food. |
===About Starch=== | ===About Starch=== | ||
| − | : Starch is made of many glucose | + | : '''Starch''' is made of many [[glucose]] [[molecule]]s [[bond]]ed together. |
| − | : Starch is an important part of a [[Balanced Diet|balanced diet]]. | + | : '''Starch''' is an important part of a [[Balanced Diet|balanced diet]]. |
====Starch Molecule==== | ====Starch Molecule==== | ||
| − | |||
{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
|[[File:StarchMolecule.png|center|600px]] | |[[File:StarchMolecule.png|center|600px]] | ||
|- | |- | ||
| − | | style="height:20px; width:600px; text-align:center;" |A starch molecule made of many smaller glucose | + | | style="height:20px; width:600px; text-align:center;" |A '''starch''' [[molecule]] made of many smaller [[glucose]] [[molecule]]s. |
|} | |} | ||
| Line 25: | Line 24: | ||
|[[File:Rice.png|center|200px]] | |[[File:Rice.png|center|200px]] | ||
|- | |- | ||
| − | | style="height:20px; width:200px; text-align:center;" |Bread makes part of a | + | | style="height:20px; width:200px; text-align:center;" |Bread makes part of a [[Balanced Diet|balanced diet]] because it has a lot of '''starch''' used for energy. |
| − | | style="height:20px; width:200px; text-align:center;" |A ''' | + | | style="height:20px; width:200px; text-align:center;" |A [[Balanced Diet|balanced diet]] might contain pasta as it is mostly '''starch'''. |
| − | | style="height:20px; width:200px; text-align:center;" |Potatoes are | + | | style="height:20px; width:200px; text-align:center;" |Potatoes are full of '''starch'''. |
| − | | style="height:20px; width:200px; text-align:center;" |Rice is | + | | style="height:20px; width:200px; text-align:center;" |Rice is mostly '''starch''' with very few other [[nutrient]]s. |
|} | |} | ||
====Testing for Starch==== | ====Testing for Starch==== | ||
| − | : Starch can be detected using Iodine Solution. | + | : '''Starch''' can be detected using [[Iodine Solution]]. |
=====Method===== | =====Method===== | ||
| − | : 1. A small sample of food is placed on a spotting tile. | + | : 1. A small sample of food is placed on a [[Spotting Tile|spotting tile]]. |
| − | : 2. A drop of Iodine Solution is added to the food sample. | + | : 2. A drop of [[Iodine Solution]] is added to the food sample. |
| − | : 3. If the Iodine | + | : 3. If the [[Iodine Solution]] turns from orange to blue-black then the food contains [[starch]]. |
{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
|[[File:IodineStarch.png|center|400px]] | |[[File:IodineStarch.png|center|400px]] | ||
|- | |- | ||
| − | | style="height:20px; width:400px; text-align:center;" |Iodine | + | | style="height:20px; width:400px; text-align:center;" |[[Iodine Solution]] is an orange [[liquid]]. When the [[Iodine Solution]] is added to '''starch''' the [[Iodine Solution]] turns from orange to blue-black. |
| + | |} | ||
| + | |||
| + | ==Key Stage 4== | ||
| + | ===Meaning=== | ||
| + | '''Starch''' is a [[polysaccharide]] found in food. | ||
| + | |||
| + | ===About Starch=== | ||
| + | : '''Starch''' is a [[polymer]] made of many [[glucose]] [[monomer]]s which join together in a [[polymerisation|polymerisation reaction]]. | ||
| + | : '''Starch''' is an important part of a [[Balanced Diet|balanced diet]]. | ||
| + | : '''Starch''' can be broken down into shorter chains by [[amylase]]. | ||
| + | |||
| + | ====Starch Molecule==== | ||
| + | {| class="wikitable" | ||
| + | |- | ||
| + | |[[File:StarchMolecule.png|center|600px]] | ||
| + | |- | ||
| + | | style="height:20px; width:600px; text-align:center;" |A '''starch''' [[molecule]] made of many smaller [[glucose]] [[molecule]]s. | ||
| + | |} | ||
| + | |||
| + | ====Starch in Foods==== | ||
| + | {| class="wikitable" | ||
| + | |+ Foods with lots of [[starch]]: | ||
| + | |- | ||
| + | |[[File:Bread.png|center|200px]] | ||
| + | |[[File:Pasta.png|center|200px]] | ||
| + | |[[File:Potato.png|center|200px]] | ||
| + | |[[File:Rice.png|center|200px]] | ||
| + | |- | ||
| + | | style="height:20px; width:200px; text-align:center;" |Bread makes part of a [[Balanced Diet|balanced diet]] because it has a lot of '''starch''' used for energy. | ||
| + | | style="height:20px; width:200px; text-align:center;" |A [[Balanced Diet|balanced diet]] might contain pasta as it is mostly '''starch'''. | ||
| + | | style="height:20px; width:200px; text-align:center;" |Potatoes are full of '''starch'''. | ||
| + | | style="height:20px; width:200px; text-align:center;" |Rice is mostly '''starch''' with very few other [[nutrient]]s. | ||
| + | |} | ||
| + | |||
| + | ====Testing for Starch==== | ||
| + | : '''Starch''' can be detected using [[Iodine Solution]]. | ||
| + | =====Method===== | ||
| + | : 1. A small sample of food is placed on a [[Spotting Tile|spotting tile]]. | ||
| + | : 2. A drop of [[Iodine Solution]] is added to the food sample. | ||
| + | : 3. If the [[Iodine Solution]] turns from orange to blue-black then the food contains [[starch]]. | ||
| + | {| class="wikitable" | ||
| + | |- | ||
| + | |[[File:IodineStarch.png|center|400px]] | ||
| + | |- | ||
| + | | style="height:20px; width:400px; text-align:center;" |[[Iodine Solution]] is an orange [[liquid]]. When the [[Iodine Solution]] is added to '''starch''' the [[Iodine Solution]] turns from orange to blue-black. | ||
|} | |} | ||
Revision as of 13:12, 5 June 2019
Contents
Key Stage 3
Meaning
Starch is a complex carbohydrate found in food.
About Starch
- Starch is made of many glucose molecules bonded together.
- Starch is an important part of a balanced diet.
Starch Molecule
 |
| A starch molecule made of many smaller glucose molecules. |
Starch in Foods
 |
 |
 |
 |
| Bread makes part of a balanced diet because it has a lot of starch used for energy. | A balanced diet might contain pasta as it is mostly starch. | Potatoes are full of starch. | Rice is mostly starch with very few other nutrients. |
Testing for Starch
- Starch can be detected using Iodine Solution.
Method
- 1. A small sample of food is placed on a spotting tile.
- 2. A drop of Iodine Solution is added to the food sample.
- 3. If the Iodine Solution turns from orange to blue-black then the food contains starch.
 |
| Iodine Solution is an orange liquid. When the Iodine Solution is added to starch the Iodine Solution turns from orange to blue-black. |
Key Stage 4
Meaning
Starch is a polysaccharide found in food.
About Starch
- Starch is a polymer made of many glucose monomers which join together in a polymerisation reaction.
- Starch is an important part of a balanced diet.
- Starch can be broken down into shorter chains by amylase.
Starch Molecule
|
| A starch molecule made of many smaller glucose molecules. |
Starch in Foods
|
|
|
|
| Bread makes part of a balanced diet because it has a lot of starch used for energy. | A balanced diet might contain pasta as it is mostly starch. | Potatoes are full of starch. | Rice is mostly starch with very few other nutrients. |
Testing for Starch
- Starch can be detected using Iodine Solution.
Method
- 1. A small sample of food is placed on a spotting tile.
- 2. A drop of Iodine Solution is added to the food sample.
- 3. If the Iodine Solution turns from orange to blue-black then the food contains starch.
|
| Iodine Solution is an orange liquid. When the Iodine Solution is added to starch the Iodine Solution turns from orange to blue-black. |