Difference between revisions of "Cell Wall"
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==Key Stage 3== | ==Key Stage 3== | ||
===Meaning=== | ===Meaning=== | ||
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The '''cell wall''' is a layer covering the [[Cell Membrane|cell membrane]] of some [[Cell (Biology)|cells]]. | The '''cell wall''' is a layer covering the [[Cell Membrane|cell membrane]] of some [[Cell (Biology)|cells]]. | ||
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{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
| − | |[[File: | + | |[[File:PlantCellWall.png|center|200px]] |
| − | |[[File:BacteriaCellWall.png|center| | + | |[[File:BacteriaCellWall.png|center|300px]] |
|- | |- | ||
| − | | style="height:20px; width: | + | | style="height:20px; width:300px; text-align:center;" |The '''cell wall''' of a [[Plant Cell|plant cell]] is the outer layer. |
| style="height:20px; width:200px; text-align:center;" |The '''cell wall''' of a [[bacteria]] protects it from the immune system. | | style="height:20px; width:200px; text-align:center;" |The '''cell wall''' of a [[bacteria]] protects it from the immune system. | ||
|} | |} | ||
| + | |||
| + | ==Key Stage 4== | ||
| + | ===Meaning=== | ||
| + | The '''cell wall''' is a layer covering the [[Cell Membrane|cell membrane]] of [[Plant Cell|plant]], [[Fungal Cell|fungal]] and [[Bacteria|bacterial]] [[Cell (Biology)|cells]]. | ||
| + | |||
| + | ===Function=== | ||
| + | : The '''cell wall''' can protect the [[Cell (Biology)|cell]] from some [[toxic]] [[chemical]]s and some [[virus]]es. | ||
| + | : The '''cell wall''' keeps the [[Cell (Biology)|cell]] in the same shape. | ||
| + | |||
| + | ===About Cell Walls=== | ||
| + | : The '''cell walls''' of [[Plant Cell|plant cells]] are made of [[cellulose]]. | ||
| + | : The '''cell walls''' of [[Fungal Cell|fungal cells]] are made of [[chitin]]. | ||
| + | : The '''cell walls''' of [[bacteria]] are made of [[murein]]. | ||
| + | : [[Animal Cell|Animal cells]] and [[protist]]s do not have '''cell wall'''. | ||
| + | {| class="wikitable" | ||
| + | |- | ||
| + | |[[File:PlantCellWall.png|center|200px]] | ||
| + | |[[File:BacteriaCellWall.png|center|300px]] | ||
| + | |- | ||
| + | | style="height:20px; width:300px; text-align:center;" |The '''cell wall''' of a [[Plant Cell|plant cell]] is the outer layer. | ||
| + | | style="height:20px; width:200px; text-align:center;" |The '''cell wall''' of a [[bacteria]] protects it from the immune system. | ||
| + | |} | ||
| + | |||
| + | ===References=== | ||
| + | ====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 ''Cell walls, pages 7-8, 94, GCSE Biology; Third Edition, Oxford University Press, AQA ''] | ||
| + | |||
| + | ====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 ''Cell walls, page 5, GCSE Biology, Pearson, Edexcel ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1292120193/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120193&linkCode=as2&tag=nrjc-21&linkId=572df39392fb4200db8391d98ae6314e ''Cell walls, page 5, GCSE Combined Science, Pearson Edexcel ''] | ||
| + | |||
| + | ====OCR==== | ||
| + | :[https://www.amazon.co.uk/gp/product/1782945695/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945695&linkCode=as2&tag=nrjc-21&linkId=ceafcc80bcad6b6754ee97a0c7ceea53 ''Cell walls, page 11, Gateway GCSE Combined Science; The Revision Guide, CGP, 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 ''Cell walls, pages 12, 31, 94, Gateway GCSE Biology; The Revision Guide, CGP, OCR ''] | ||
Latest revision as of 12:17, 1 December 2019
Contents
Key Stage 3
Meaning
The cell wall is a layer covering the cell membrane of some cells.
Function
- The cell wall protects the cell and keeps the cell in the same shape.
About Cell Walls
- The cell wall is part of the cells in plants, fungi and bacteria.
- The cell walls of plants is what makes fibre in our diet.
- Animal cells do not have a cell wall.
 |
 |
| The cell wall of a plant cell is the outer layer. | The cell wall of a bacteria protects it from the immune system. |
Key Stage 4
Meaning
The cell wall is a layer covering the cell membrane of plant, fungal and bacterial cells.
Function
- The cell wall can protect the cell from some toxic chemicals and some viruses.
- The cell wall keeps the cell in the same shape.
About Cell Walls
- The cell walls of plant cells are made of cellulose.
- The cell walls of fungal cells are made of chitin.
- The cell walls of bacteria are made of murein.
- Animal cells and protists do not have cell wall.
|
|
| The cell wall of a plant cell is the outer layer. | The cell wall of a bacteria protects it from the immune system. |
References
AQA
Edexcel
- Cell walls, page 5, GCSE Biology, Pearson, Edexcel
- Cell walls, page 5, GCSE Combined Science, Pearson Edexcel