Contents
Key Stage 4
Meaning
Platelets are a part of the blood that helps it clot when there is an open wound.
About Platelets
- Platelets make up less than 1% of the blood.
- Platelets are pieces of dead red blood cells.
- When blood escapes a blood vessel the platelets bind together to form a blood clot. However, sometimes a blood clot can form inside a blood vessel and block a blood vessel.
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| A diagram showing the percentages of the different parts that make up blood. |
References
AQA
- Platelet, pages 116-7, 148-9, GCSE Biology; Student Book, Collins, AQA
- Platelets, page 32, GCSE Combined Science; The Revision Guide, CGP, AQA
- Platelets, page 36, GCSE Biology; The Revision Guide, CGP, AQA
- Platelets, page 53, GCSE Biology; Third Edition, Oxford University Press, AQA
- Platelets, page 56, GCSE Biology, Hodder, AQA
- Platelets, page 81, GCSE Combined Science Trilogy; Biology, CGP, AQA
- Platelets, page 87, GCSE Biology, CGP, AQA
- Platelets, page, 56, GCSE Combined Science Trilogy 1, Hodder, AQA