Difference between revisions of "Red Blood Cell"
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==Key Stage 4== | ==Key Stage 4== | ||
===Meaning=== | ===Meaning=== | ||
| + | [[File:Blood.png|right|300px|thumb|A magnified image of blood going through a capillary.]] | ||
A '''red blood cell''' is a [[Specialised Animal Cell|specialised animal cell]] used to transport [[oxygen]] around the body. | A '''red blood cell''' is a [[Specialised Animal Cell|specialised animal cell]] used to transport [[oxygen]] around the body. | ||
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: When '''red blood cells''' die they are broken into small pieces called [[platelet]]s which help the [[blood]] clot when there is an open wound. | : When '''red blood cells''' die they are broken into small pieces called [[platelet]]s which help the [[blood]] clot when there is an open wound. | ||
: If a person suffers from [[Sickle Cell Anemia]] the '''red blood cells''' are sickle shaped so they can become stuck in [[capillaries]]. | : If a person suffers from [[Sickle Cell Anemia]] the '''red blood cells''' are sickle shaped so they can become stuck in [[capillaries]]. | ||
| + | {| class="wikitable" | ||
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| + | |[[File:BloodConstituents.png|center|300px]] | ||
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| + | | style="height:20px; width:200px; text-align:center;" |A [[diagram]] showing the [[percentage]]s of the different parts that make up [[blood]]. | ||
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Revision as of 14:41, 5 June 2019
Contents
Key Stage 3
Meaning
A red blood cell is specialised cell which carries oxygen around the body.
Adaptations of Red Blood Cells
- Red blood cells are shaped to fit through capillaries without getting stuck.
- Red blood cells are shaped to have a large surface area.
- Red blood cells have no nucleus to provide a bigger volume inside to store oxygen.
About Red Blood Cells
- Blood is a tissue made of plasma, white blood cells and red blood cells.
- Red blood cells are specially adapted to transfer oxygen around the body.
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Key Stage 4
Meaning
A red blood cell is a specialised animal cell used to transport oxygen around the body.
Adaptations of Red Blood Cells
- Red blood cells have a biconcave shape which maximises their surface area to allow oxygen to be absorbed quickly.
- Red blood cells have a smooth rounded edge to pass through the capillaries without getting stuck.
- Red blood cells have a large number of haemoglobin molecules used to transport oxygen.
- Red blood cells have lost their nucleus to allow extra space for haemoglobin molecules.
About Red Blood Cells
- Red blood cells make up about 45% of the blood.
- Red blood cells carry oxygen in their haemoglobin molecules.
- Red blood cells are made in the bone marrow.
- When red blood cells die they are broken into small pieces called platelets which help the blood clot when there is an open wound.
- If a person suffers from Sickle Cell Anemia the red blood cells are sickle shaped so they can become stuck in capillaries.
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| A diagram showing the percentages of the different parts that make up blood. |