Open main menu
Key Stage Wiki β

Difference between revisions of "Starch"

(→‎Testing for Starch)
 
(4 intermediate revisions by 2 users not shown)
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 molecules bonded together.
+
: '''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====
−
: Starch is made of hundreds of glucose molecules bonded together.
 
 
{| 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 molecules.
+
| 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 '''balanced diet''' because it has a lot of stored energy we can use.
+
| 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''' might contain pasta 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 an excellent source of energy in a '''balanced diet'''.
+
| style="height:20px; width:200px; text-align:center;" |Potatoes are full of '''starch'''.
−
| style="height:20px; width:200px; text-align:center;" |Rice is a very important part of many people's '''balanced diet'''.
+
| 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 solution turns from orange to blue-black then the food contains [[starch]].
+
: 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 solution is an orange liquid. When the iodine solution is added to starch the iodine solution turns from orange to blue-black.
+
| 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.
 +
|}
 +
 +
===References===
 +
====AQA====
 +
 +
:[https://www.amazon.co.uk/gp/product/1782946381/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946381&linkCode=as2&tag=nrjc-21&linkId=5ec5fc3f6429e30c1d9ab9bca2bccf93 ''Starch, page 147, GCSE Combined Science Trilogy; Biology, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1782945954/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945954&linkCode=as2&tag=nrjc-21&linkId=100574c08fbbb64318256eb79ed61a76 ''Starch, page 161, GCSE Biology, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1471851346/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851346&linkCode=as2&tag=nrjc-21&linkId=3ac654f4b0da781c49c855a1af4c92ea ''Starch, page 193, GCSE Chemistry, Hodder, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1782945598/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945598&linkCode=as2&tag=nrjc-21&linkId=ad276ad49df77ab4b40ab4fd0fe10310 ''Starch, page 26, GCSE Combined Science; The Revision Guide, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1782945563/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945563&linkCode=as2&tag=nrjc-21&linkId=9a1d023a374038e6072f33c4f3cf808b ''Starch, page 29, GCSE Biology; The Revision Guide, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/0198359381/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359381&linkCode=as2&tag=nrjc-21&linkId=47c8d1ae58d8b3a5e2094cd447154558 ''Starch, pages 172-173, GCSE Chemistry; Third Edition, Oxford University Press, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/0008158762/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158762&linkCode=as2&tag=nrjc-21&linkId=a0fffa35b3ea49a63404f6704e0df7cc ''Starch, pages 226-7, 252, GCSE Chemistry; Student Book, Collins, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/0198359373/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359373&linkCode=as2&tag=nrjc-21&linkId=952a73bbb09d222ecc4b50d200679849 ''Starch, pages 46, 128-129, GCSE Biology; Third Edition, Oxford University Press, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/0008158754/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158754&linkCode=as2&tag=nrjc-21&linkId=27ad53b0283feeff7fc5ae04a9e205f524 ''Starch, pages 56, 58,69,98-99, 103, GCSE Biology; Student Book, Collins, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1471851354/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851354&linkCode=as2&tag=nrjc-21&linkId=9012a0d354024419214fb3ad5ac44ba0 ''Starch, test for, page 48, GCSE Combined Science Trilogy 1, Hodder, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1782945598/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945598&linkCode=as2&tag=nrjc-21&linkId=ad276ad49df77ab4b40ab4fd0fe10311 ''Starch; test for, page 28, GCSE Combined Science; The Revision Guide, CGP, AQA '']
 +
:[https://www.amazon.co.uk/gp/product/1782945563/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945563&linkCode=as2&tag=nrjc-21&linkId=9a1d023a374038e6072f33c4f3cf808b ''Starch; test for, page 32, GCSE Biology; The Revision Guide, CGP, AQA '']
 +
 +
====Edexcel====
 +
 +
:[https://www.amazon.co.uk/gp/product/1782945725/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945725&linkCode=as2&tag=nrjc-21&linkId=694be7494de75af3349537d34e13f7f0 ''Starch, page 100, GCSE Chemistry; The Revision Guide, CGP, Edexcel '']
 +
:[https://www.amazon.co.uk/gp/product/1292120207/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120207&linkCode=as2&tag=nrjc-21&linkId=22455ff53961978667722edaa64c0be5 ''Starch, page 124, GCSE Biology, Pearson, Edexcel '']
 +
:[https://www.amazon.co.uk/gp/product/1782945741/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945741&linkCode=as2&tag=nrjc-21&linkId=30da4f2178da182547b62a7329d13b57 ''Starch, pages 16, 17, GCSE Combined Science; The Revision Guide, CGP, Edexcel '']
 +
:[https://www.amazon.co.uk/gp/product/1782946748/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946748&linkCode=as2&tag=nrjc-21&linkId=a4f0348fc37d0ba1bb52d27f8679581f ''Starch, pages 17-19, GCSE Biology; The Revision Guide, CGP, Edexcel '']
 +
:[https://www.amazon.co.uk/gp/product/1292120215/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120215&linkCode=as2&tag=nrjc-21&linkId=8f96ddb76196848bafdb124354e4cf77 ''Starch, pages 176, 185, GCSE Chemistry, Pearson, Edexcel '']
 +
:[https://www.amazon.co.uk/gp/product/1782948120/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948120&linkCode=as2&tag=nrjc-21&linkId=dedef775c6a43dbb0a609441525adac0 ''Starch, pages 39, 41, 44, GCSE Biology, CGP, Edexcel  '']
 +
 +
====OCR====
 +
:[https://www.amazon.co.uk/gp/product/1782945660/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945660&linkCode=as2&tag=nrjc-21&linkId=83aa4500ad7759e7f401a1c5ba5df758 ''Starch (testing for), page 24, Gateway GCSE Biology; The Revision Guide, CGP, OCR '']
 +
:[https://www.amazon.co.uk/gp/product/0198359810/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359810&linkCode=as2&tag=nrjc-21&linkId=d768d99f1a06f7c12fab40e5aef85a55 ''Starch, pages 38, 48-49, 252, 256, Gateway GCSE Biology, Oxford, OCR '']
 +
:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Starch, pages 65, 245, Gateway GCSE Chemistry, Oxford, OCR '']

Latest revision as of 12:12, 20 December 2019

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

StarchMolecule.png
A starch molecule made of many smaller glucose molecules.

Starch in Foods

Foods with lots of starch:
Bread.png
Pasta.png
Potato.png
Rice.png
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.
IodineStarch.png
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

StarchMolecule.png
A starch molecule made of many smaller glucose molecules.

Starch in Foods

Foods with lots of starch:
Bread.png
Pasta.png
Potato.png
Rice.png
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.
IodineStarch.png
Iodine Solution is an orange liquid. When the Iodine Solution is added to starch the Iodine Solution turns from orange to blue-black.

References

AQA

Starch, page 147, GCSE Combined Science Trilogy; Biology, CGP, AQA
Starch, page 161, GCSE Biology, CGP, AQA
Starch, page 193, GCSE Chemistry, Hodder, AQA
Starch, page 26, GCSE Combined Science; The Revision Guide, CGP, AQA
Starch, page 29, GCSE Biology; The Revision Guide, CGP, AQA
Starch, pages 172-173, GCSE Chemistry; Third Edition, Oxford University Press, AQA
Starch, pages 226-7, 252, GCSE Chemistry; Student Book, Collins, AQA
Starch, pages 46, 128-129, GCSE Biology; Third Edition, Oxford University Press, AQA
Starch, pages 56, 58,69,98-99, 103, GCSE Biology; Student Book, Collins, AQA
Starch, test for, page 48, GCSE Combined Science Trilogy 1, Hodder, AQA
Starch; test for, page 28, GCSE Combined Science; The Revision Guide, CGP, AQA
Starch; test for, page 32, GCSE Biology; The Revision Guide, CGP, AQA

Edexcel

Starch, page 100, GCSE Chemistry; The Revision Guide, CGP, Edexcel
Starch, page 124, GCSE Biology, Pearson, Edexcel
Starch, pages 16, 17, GCSE Combined Science; The Revision Guide, CGP, Edexcel
Starch, pages 17-19, GCSE Biology; The Revision Guide, CGP, Edexcel
Starch, pages 176, 185, GCSE Chemistry, Pearson, Edexcel
Starch, pages 39, 41, 44, GCSE Biology, CGP, Edexcel

OCR

Starch (testing for), page 24, Gateway GCSE Biology; The Revision Guide, CGP, OCR
Starch, pages 38, 48-49, 252, 256, Gateway GCSE Biology, Oxford, OCR
Starch, pages 65, 245, Gateway GCSE Chemistry, Oxford, OCR
Retrieved from "https://keystagewiki.com/index.php?title=Starch&oldid=21591"