Difference between revisions of "Cell Membrane"
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==Key Stage 5== | ==Key Stage 5== | ||
{{#ev:youtube|https://www.youtube.com/watch?v=nsklF1w4eok}} | {{#ev:youtube|https://www.youtube.com/watch?v=nsklF1w4eok}} | ||
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| + | ===References=== | ||
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| + | :[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 membranes, pages 6-7, 20-21, GCSE Biology; Third Edition, Oxford University Press, AQA ''] | ||
Revision as of 18:01, 2 November 2019
Contents
Key Stage 3
Meaning
The cell membrane is a layer covering the cytoplasm of a cell.
Function
About Cell Membranes
- In an animal cell the cell membrane is the outer layer of the cell.
- In a plant cell the cell membrane is protected by a cell wall on top of it.
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| The cell membrane of an animal cell is the outer layer. | The cell membrane of a plant cell is protected by the cell wall. |
Key Stage 4
Meaning
The cell membrane is a partially permeable membrane covering the cytoplasm of a cell.
Function
About the Cell Membrane
- In an animal cell the cell membrane is the outer layer of the cell.
- In a plant cell the cell membrane is protected by a cell wall on top of it.
- The cell membrane only allows in certain molecules. This is referred to as a partially permiable membrane. This means some molecules, like water, can diffuse in and out of the cell, however, some cannot pass into the cell.
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| The cell membrane of an animal cell is the outer layer. | The cell membrane of a plant cell is protected by the cell wall. |